| SABIC INNOVATIVE PLASTICS IP B.V. Patent applications |
| Patent application number | Title | Published |
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| 20120029125 | HYDROSTABLE POLYETHERIMIDE BLENDS, METHODS OF MANUFACTURE, AND ARTICLES FORMED THEREFROM - A composition comprising, based on the total weight of the composition, from 10 to 90 wt. % of a polyetherimide with a weight average molecular weight from 10,000 to 80,000 Daltons; from 10 to 90 wt. % of a polymer selected from polycarbonates, polyester-polycarbonates, polyalkylene terephthalates, or a combination thereof, from 0.005 to 1 wt. % of a hydrotalcite having a particle size of less than 10 micrometer and a magnesium oxide to aluminum oxide mole ratio of 1.0 to 5.0; from 0.01 to 1.0 wt. % of a phosphorus-containing stabilizer; from 0.01 to 1.00 wt. % of a hindered phenol stabilizer; optionally, from 0 to 3 wt. % of a polyolefin; and optionally, from 0 to 5 wt. % of an inorganic metal oxide. | 02-02-2012 |
| 20120010365 | POLYCARBONATE/POLYOLEFIN BASED RESIN COMPOSITIONS AND THEIR PRODUCTION PROCESSES AND USES - A method of making resin composition having excellent wear properties that includes 50 to 99 wt. % of a polycarbonate resin and from 1 to 50 wt. % of a polyolefin that has been modified with at least one functional group selected from a carboxyl, an acid anhydride, an epoxy groups or mixtures containing at least one of the foregoing functional groups, each based on the total combined weight of the resin composition, exclusive of any filler. The resin composition optionally contains an unmodified polyolefin and/or a bi-functional monomer. The resin composition can be molded into articles having improved wear characteristics. The process is a one-step process that improves the efficiency and/or yield of the resin composition as compared to prior-art two-step processes. | 01-12-2012 |
| 20110319536 | FLAME RESISTANT POLYESTER COMPOSITIONS, METHOD OF MANUFACTURE, AND ARTICLES THEREOF - A thermoplastic polyester composition comprising, based on the total weight of the composition, a chlorine- and bromine-free combination of: from 40 to 60 wt % of a polyester; from 25 to 35 wt % of a reinforcing filler; from 2 to 8 wt % of a flame retardant synergist selected from the group consisting of melamine polyphosphate, melamine cyanurate, melamine pyrophosphate, melamine phosphate, and combinations thereof; from 5 to 15 wt % of a phosphinate salt flame retardant; from more than 0 to less than 5 wt % of an impact modifier component comprising a poly(ether-ester) elastomer and a (meth)acrylate impact modifier; from more than 0 to 5 wt % poly(tetrafluoroethylene) encapsulated by a styrene-acrylonitrile copolymer; from more than 0 to 2 wt % of a stabilizer; wherein the thermoplastic polyester composition contains less than 5 wt % of a polyetherimide. | 12-29-2011 |
| 20110319534 | FLAME RESISTANT POLYESTER COMPOSITIONS, METHOD OF MANUFACTURE, AND ARTICLES THEREOF - A thermoplastic polyester composition comprising, based on the total weight of the composition, a chlorine- and bromine-free combination of: from 40 to 60 wt % of a modified poly(1,4-butylene terephthalate); from 25 to 35 wt % of a reinforcing filler; from 2 to 8 wt % of a flame retardant synergist selected from the group consisting of melamine polyphosphate, melamine cyanurate, melamine pyrophosphate, melamine phosphate, and combinations thereof; from 5 to 15 wt % of a phosphinate salt flame retardant; from more than 0 to less than 5 wt % of an impact modifier component comprising a poly(ether-ester) elastomer and a (meth)acrylate impact modifier; from more than 0 to 5 wt % poly(tetrafluoroethylene) encapsulated by a styrene-acrylonitrile copolymer; from more than 0 to 2 wt % of a stabilizer; wherein the thermoplastic polyester composition contains less than 5 wt % of a polyetherimide. | 12-29-2011 |
| 20110301321 | METHOD OF MAKING POLY(ARYLENE ETHER) COMPOSITIONS - A method of making a thermoplastic composition comprises melt extruding a poly(arylene ether) powder to form a first pelletized poly(arylene ether); and melt extruding the first pelletized poly(arylene ether) to form a second pelletized poly(arylene ether), wherein the second pelletized poly(arylene ether) has a level of butyraldehyde less than the first pelletized poly(arylene ether) and the second pelletized poly(arylene ether) has a level of trimethylanisole less than the first pelletized poly(arylene ether). | 12-08-2011 |
| 20110301320 | METHOD OF PURIFYING A POLYMER - A method for purifying a polymer comprising providing a first mixture comprising at least one solvent and at least one polymeric material, diluting the first mixture with veratrole to produce a second mixture in which the polymeric material is substantially dissolved at a temperature less than 100° C., performing at least one step selected from (i) contacting the second mixture with an aqueous wash solution, and (ii) filtering the second mixture. | 12-08-2011 |
| 20110301319 | METHOD OF PURIFYING A POLYMER - A method for purifying a polymer comprising providing a first mixture comprising at least one solvent and at least one polymeric material, diluting the first mixture with veratrole to produce a second mixture in which the polymeric material is substantially dissolved at a temperature less than 100° C., performing at least one step selected from (i) contacting the second mixture with an aqueous wash solution, and (ii) filtering the second mixture. | 12-08-2011 |
| 20110297891 | POSITIVE TEMPERATURE COEFFICIENT MATERIALS WITH REDUCED NEGATIVE TEMPERATURE COEFFICIENT EFFECT - Positive temperature coefficient (PTC) compositions having a reduced negative temperature coefficient effect (NTC) are provided that are achieved without crosslinking the thermoplastic base material. The PTC compositions include a thermoplastic base resin, an electrically conductive filler and particles of a polymeric additive dispersed in the PTC composition. | 12-08-2011 |
| 20110293930 | MULTILAYER SHEET AND METHODS OF MAKING AND ARTICLES COMPRISING THE MULTILAYER SHEET - In some embodiments, a multilayer sheet comprises: a first cap layer formed from a first cap composition comprising polycarbonate and potassium perfluorobutane sulfonate; a second cap layer formed from a second cap composition comprising polycarbonate and potassium perfluorobutane sulfonate; and a core layer formed from a core composition comprising polycarbonate and without potassium perfluorobutane sulfonate. The core layer is disposed between the first cap layer and the second cap layer. | 12-01-2011 |
| 20110293927 | MULTILAYER SHEET AND METHODS OF MAKING AND ARTICLES COMPRISING THE MULTILAYER SHEET - In some embodiments, a multilayer sheet comprises: a first cap layer formed from a first cap composition comprising polycarbonate and potassium perfluorobutane sulfonate; a second cap layer formed from a second cap composition comprising polycarbonate and potassium perfluorobutane sulfonate; and a core layer formed from a core composition comprising polycarbonate and without potassium perfluorobutane sulfonate. The core layer is disposed between the first cap layer and the second cap layer. | 12-01-2011 |
| 20110288214 | POLYSILOXANE-POLYCARBONATE COMPOSITIONS, METHOD OF MANUFACTURE, AND ARTICLES FORMED THEREFROM - A composition, comprising, based on the total weight of the polymer components in the composition, 1 to 40 wt. % of an aromatic polycarbonate, 30 to 98.8 wt. % of a polysiloxane-polycarbonate block copolymer, and 0.1 to 10 wt. % of a polysiloxane-polyimide block copolymer comprising more than 20 wt. % polysiloxane blocks, based on the total weight of the polysiloxane-polyimide copolymer. The compositions provide articles with low haze, high luminous transmittance, and good hydro-aging properties. The articles can further be formulated to have excellent flame retardance, particularly when KSS is used. | 11-24-2011 |
| 20110263791 | CHLORO-SUBSTITUTED POLYETHERIMIDES HAVING IMPROVED RELATIVE THERMAL INDEX - A polyetherimide having an OH content that is greater than 0 and equal or less than 100 ppm; a Relative Thermal Index that is greater than or equal to 170° C.; and a chlorine content that is greater than 0 ppm is disclosed herein. A method for preparing the polyetherimide is also disclosed. | 10-27-2011 |
| 20110260366 | MOLD APPARATUS FOR FORMING POLYMER AND METHOD - Various mold apparatuses and methods for forming a polymer with induction heat energy are provided. In one embodiment of the present invention, a mold apparatus for forming polymer includes a mold having a top mold portion and a top mold surface that is magnetic. The bottom mold portion of the mold includes an induction heating unit that is at least partially embedded in the bottom mold portion that provides induction heat energy to the mold. The mold apparatus is constructed and arranged to dissipate greater than about 50% of the induction heat energy in the top mold portion. The induction heating unit of the bottom portion of the mold provides rapid heating to the top mold surface to provide high surface quality polymer parts and a shorter molding cycle time while utilizing less energy. | 10-27-2011 |
| 20110256406 | Laser Weldable Thermoplastic Polyester Composition - A composition for laser welding which comprises (a) 35.5 to 80 weight percent of a non-amorphous polymer selected from the group consisting of poly(butylene terephthalate), poly(ethylene terephthalate), poly(butylene terephthalate) copolymer, poly(ethylene terephthalate) copolymer, and combinations thereof; (b) 10 to 24.5 weight percent of an amorphous polymer selected from a poly(ester) copolymer, a poly(ester-carbonate), or a combination thereof; and (c) 10 to 40 weight percent of a filler selected from the group consisting of talc, mica, barium sulphate, at least one form of glass, and a combination thereof. This composition is further compounded with (d) 0-5 parts by weight of an antioxidant, mold release agent, stabilizer, or a combination thereof based upon 100 parts by weight of the combination of the non-amorphous polymer, the amorphous polymer and the filler. | 10-20-2011 |
| 20110251325 | RECYCLED THERMOPLASTIC COMPOSITIONS - A thermoplastic composition comprising recovered poly(arylene ether), less than or equal to 0.1 weight percent based on the total weight of the thermoplastic composition of a second recovered thermoplastic that gives off greater than or equal to 10 percent by mass of volatiles at a processing temperature for the thermoplastic composition; 0.025 to 4.0 weight percent, based on the total weight of the thermoplastic composition, of a third recovered thermoplastic selected from the group consisting of polyolefin, acrylonitrile-butadiene-styrene, polycarbonate, polycarbonate/acrylonitrile-butadiene-styrene blend, polymethyl methacrylate, polyamide, polyester, polycarbonate/polyester blend and combinations of two or more of the foregoing third recovered thermoplastics, wherein combinations of two or more of the foregoing third recovered thermoplastics are present in an amount of less than or equal to 10 weight percent, based on the total weight of the thermoplastic composition; and an optional virgin thermoplastic. | 10-13-2011 |
| 20110227353 | PLASTICALLY DEFORMABLE SPRING ENERGY MANAGEMENT SYSTEMS AND METHODS FOR MAKING AND USING THE SAME - In one embodiment, an energy management system can comprise: a support structure; a covering; and a plastically deformable compression spring located between the support structure and the covering. In one embodiment, a method of absorbing energy can comprise: impacting a portion of a vehicle comprising an energy management system and plastically deforming the compression spring. A method for energy management in a vehicle comprises installing the energy management system in a vehicle. | 09-22-2011 |
| 20110213098 | THERMALLY STABLE ARTICLE AND METHOD OF MANUFACTURE THEREOF - An article that includes a thermoplastic composition and a crosslinking agent. The crosslinking agent is thermally activated by annealing at a temperature proximate to the flow point of the thermoplastic composition to stabilize the dimensions of the article during service when compared with a similar article that contains the thermoplastic resin without the crosslinking agent or a similar article that contains the crosslinking agent but is thermally activated at a rate of greater than or equal to about 5 degrees centigrade per minute to the same temperature. | 09-01-2011 |
| 20110212314 | METHODS OF PREPARING POLYMER-ORGANOCLAY COMPOSITES AND ARTICLES DERIVED THEREFROM - A method for preparing a polymer-organoclay composite composition comprises combining a solvent and an unexfoliated organoclay to provide a first mixture, wherein the unexfoliated organoclay comprises alternating inorganic silicate layers and organic layers, and has an initial spacing between the silicate layers; exposing the first mixture to an energized condition of a sufficient intensity and duration to increase the initial spacing of the inorganic silicate layers, to provide a second mixture; contacting the second mixture with a polymer composition so that the polymer composition fills at least one region located between at least one pair of silicate layers, wherein the polymer composition is at least partially soluble in the solvent; and removing at least a portion of the solvent from the second mixture, wherein the inorganic silicate layers remain separated by the polymer after removal of the solvent. | 09-01-2011 |
| 20110210579 | ENERGY ABSORBER ELEMENTS AND VEHICLE SYSTEMS - In some embodiments, an energy absorber element can comprise: a first support wall and a second support wall, a crush wall joining the first and second support walls together to define a deformable zone; a connection mechanism configured to connect the first and/or second support wall to a vehicle. In one embodiment, a method for using an energy absorber element in a vehicle can comprise: detachably connecting an energy absorber element to a vehicle at a support location for a vehicle component, once the energy absorber element has absorbed energy, detaching the energy absorber element from the vehicle; and separately replacing the energy absorber element from the vehicle component. In some embodiments, the vehicle component is not replaced. | 09-01-2011 |
| 20110198773 | POLY(ARYLENE ETHER) COMPRESSION MOLDING - A method for compression molding of poly(arylene ether) powder comprises introducing a powder comprising unheated poly(arylene ether) powder to compaction equipment comprising a compression mold and subjecting the powder in the compression mold to a pressure sufficient to produce an article having a density greater than the unheated poly(arylene ether) powder wherein the pressure is applied at a temperature less than the glass transition temperature of the poly(arylene ether) powder. | 08-18-2011 |
| 20110189449 | MULTILAYER ARTICLES AND METHODS FOR MAKING MULTILAYER ARTICLES - In one embodiment, a sheet, comprises: a cap layer comprising an acrylic polymer; and a base layer, where the cap layer and the base layer were co-extruded to form the sheet, which is thermoformable. The base layer comprises a polycarbonate. The cap layer is 10% to 30% of an overall thickness and the overall thickness is 5 mil to 500 mil. | 08-04-2011 |
| 20110183120 | Coated Film for Insert Mold Decoration, Methods for Using the Same, and Articles Made Thereby - A coated thermoplastic film can be subjected to printing to obtain a decorative film, preformed (for example, thermoformed), and then inserted into a mold that has the configuration of the preformed decorative film A base polymeric structure comprising a polymer such as a polycarbonate or blend thereof can be injection molded to the exposed surface of the preformed decorative film The molded structure has various applications such as cell phones or other electronic devices, automotive vehicles, appliances, display panels, lenses, etc. A process for making the molded article is also described. The coating for the coated thermoplastic film can be made from a UV-curable composition and can provide superior embossing and thermoformability, hardness, and adhesion, while providing enhanced chemical, scratch and abrasion resistance. | 07-28-2011 |
| 20110180299 | Conductive Wire Comprising A Polysiloxane/Polyimide Copolymer Blend - Disclosed herein are polysiloxane/polyimide block copolymer blends and the application of these blends in conductive wires. | 07-28-2011 |
| 20110160422 | ISOSORBIDE-BASED POLYCARBONATES, METHOD OF MAKING, AND ARTICLES FORMED THEREFROM - Disclosed herein is a polycarbonate polymer comprising: an isosorbide unit, a polysiloxane unit; and an aliphatic unit different from the isosorbide unit, wherein the isosorbide unit, polysiloxane unit, and aliphatic unit are each carbonate, or a combination of carbonate and ester units and the aliphatic unit is derived from an aliphatic oligomer having a molecular weight of 900 to 4000. | 06-30-2011 |
| 20110160408 | ISOSORBIDE-BASED POLYCARBONATES, METHOD OF MAKING, AND ARTICLES FORMED THEREFROM - Disclosed herein is a polycarbonate polymer comprising: an isosorbide unit, a polysiloxane unit, and an aliphatic unit different from the isosorbide unit, wherein the isosorbide unit, polysiloxane unit, and aliphatic unit are each carbonate, or a combination of carbonate and ester units, the aliphatic unit different from the isosorbide unit is derived from an aliphatic oligomeric polyester polyol having a molecular weight of 900 to 4000, and the calculated bio-content is greater than or equal to 40 weight percent, based on the total weight of the polycarbonate polymer. | 06-30-2011 |
| 20110160406 | BLENDS OF ISOSORBIDE-BASED COPOLYCARBONATE, METHOD OF MAKING, AND ARTICLES FORMED THEREFROM - Disclosed herein is are thermoplastic compositions comprising a blend of a homopolycarbonate comprising units derived from an aromatic dihydroxy compound and a copolymer comprising isosorbide units and siloxane units. The copolymer comprising isosorbide units and siloxane units can further comprise non-isosorbide aliphatic units derived from a C | 06-30-2011 |
| 20110148427 | TRIBOCHARGE TEST FIXTURE - A fixture can include a test fixture that holds an object whose electrostatic charge characteristics are to be measured, means for moving a piece of rubbing material into contact with the object, and means for rubbing a surface of the object. A method for measuring the electrostatic charge characteristics of an object using a test fixture can include: placing the object in the test fixture, moving a piece of rubbing material into contact with the object and rubbing a surface of the object with the piece of rubbing material for a period of time. The rubbing causes an electrostatic charge to be built up on the surface of the object. The electrostatic charge characteristics of the object can be measured and the measured electrostatic charge characteristics of the object can be displayed. | 06-23-2011 |
| 20110123764 | METHOD OF MAKING A MOLDED ARTICLE - In various embodiments, a method of making a molded article comprises forming a composite into a desired shape for the article, and cutting the formed article to form desired openings in the article. The composite comprises a top layer that comprises a blend of a first polycarbonate comprising repeat units of dimethyl bisphenol cyclohexane and a second polycarbonate comprising repeat units of bisphenol A, said second polycarbonate being different from said first polycarbonate, wherein the repeat units of dimethyl bisphenol cyclohexane are present in an amount of at least 50 weight percent relative of the total repeat units in the top layer, and (b) a second layer comprising a bisphenol-A polycarbonate, said second layer being joined with the top layer. | 05-26-2011 |
| 20110117369 | Tie Layer Compositions - A thermoplastic composition including a combination of a polycarbonate, an impact modifier, an aromatic vinyl copolymer, and a polyester carbonate and/or a polycarbonate polysiloxane copolymer having excellent thermal and mechanical properties as well as good adhesion to both a polymer superstrate and certain types substrates is disclosed. Also disclosed are articles and multilayer films including the tie layer composition. | 05-19-2011 |
| 20110086951 | Transparent Polycarbonate Polyester Composition and Process - Disclosed is a transparent/translucent molding composition and process for making prepared from an impact modifier and a resin blend of polycarbonate and a cycloaliphatic polyester having a matching index of refraction. | 04-14-2011 |
| 20110077377 | Method of Making Isosorbide Polycarbonate - A polycarbonate is provided that contains repeat units derived from isosorbide and a residue derived from an activated diaryl carbonate. The polycarbonate has | 03-31-2011 |
| 20110071261 | TRANSPARENT ARTICLES PREPARED FROM THERMOPLASTIC COMPOSITIONS HAVING LOW BIREFRINGENCE - An optical grade article comprises a thermoplastic composition comprising a poly(aliphatic ester)-polycarbonate copolymer comprising 10 to 25 wt % of a soft block ester unit derived from a C | 03-24-2011 |
| 20110070431 | Lightweight High Stiffness Composites Having Class A Surface Finish - Stiff, lightweight composite materials that include a Class A surface finish as well as methods of making these composites and articles that include these composites. The fiber reinforced HPPC composite sheet material includes a glass laminate layer and a metal layer. The metal layer covers the unidirectional glass fibers in the HPPC composite while the glass laminate layer gives the composite mechanical puncture resistance, while providing a composite sheet material with Class A surface properties that is still lightweight. | 03-24-2011 |
| 20110068499 | METHODS FOR MAKING A LIGHT TRANSMISSIVE FOAMED POLYMER SHEET - In some embodiments, a foamed polymer sheet comprises: a polymeric material and cells located in the polymeric material. The cells have a size distribution, D | 03-24-2011 |
| 20110060106 | POLYCARBONATE COMPOSITIONS - Polycarbonate compositions are disclosed. The compositions comprise a polycarbonate polymer (A) having repeating units derived from 2-phenyl-3,3-bis(4-hydroxyphenyl)phthalimidine (PPPBP); a polycarbonate polymer (B) which is different from polymer (A); and an impact modifier (C) which is different from polymer (A) and polymer (B). The resulting composition has an improved combination of properties, particularly heat resistance, low temperature impact performance, and viscosity. Also disclosed are articles formed from such compositions. | 03-10-2011 |
| 20110060067 | SILOXANE BLOCK COPOLYMER NANOPOROUS FOAMS, METHODS OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME - Disclosed herein is a foam that includes a polysiloxane block copolymer; the polysiloxane block copolymer including a first block that comprises a polysiloxane block and a second block that includes an organic polymer; the second block not containing a polysiloxane; the polysiloxane block being about 5 to about 45 repeat units; the foam having average pore sizes of less than or equal to about 100 nanometers. | 03-10-2011 |
| 20110052895 | FLAME RETARDANT THERMOPLASTIC POLYCARBONATE COMPOSITIONS AND FILMS MADE THEREFROM - Described herein is a thermoplastic composition comprising a polycarbonate, a mineral filler, inorganic acid or acid salt, an anti-drip agent, and a flame retardant comprising a perfluoroalkyl sulfonate salt or a combination of an aromatic phosphate ester and a polycarbonate-siloxane block copolymer. | 03-03-2011 |
| 20110028615 | FLAME-RETARDANT REINFORCED POLYCARBONATE COMPOSITIONS - A composition containing a polycarbonate, a polycarbonate-polysiloxane copolymer, an alicyclic hydrocarbon resin flow promoter, an inorganic filler, a flame retardant and an impact modifier. The compositions may include polycarbonate in an amount of 40% by weight or more of the combined weights of the polycarbonate, polycarbonate-polysiloxane copolymer, inorganic filler, flame retardant, flow promoter, and impact modifier compound wherein a molded sample of the thermoplastic composition is capable of achieving UL94 V0 rating at a thickness of 1.2 mm (±10%); wherein the polymer composition has a melt viscosity of 185 Pa·sec or less, when measured at 270° C. and 1500 sec | 02-03-2011 |
| 20110020612 | EDGE STIFFENED POLYMERIC CORRUGATED SHEET MATERIAL - Edge stiffened corrugated polymeric sheet material can be utilized as storm panels for mounting about a perimeter surface of an opening so as to protect the opening from wind and impact loads. The panels can include a corrugated sheet material having a corrugated contiguous band horizontally extending at about an end of the top and the bottom, wherein the corrugated contiguous band is complementary and contiguous to the plurality of corrugations of the corrugated sheet panel. The complementary and contiguous corrugated band can be configured to sandwich the sheet material. The panel may also include, individually or in combination, a contiguous band sandwiching the polymeric sheet material at a terminal end of each side and extending vertically from the top to the bottom. The panels provide wind and impact load protection for the opening. | 01-27-2011 |
| 20110011837 | SYSTEMS FOR FORMING A PLURALITY OF CELLS ON THE MASTERING TOOLS - Mastering tools and systems and methods for forming a plurality of cells on the mastering tools are provided. In particular, the systems vary the geometry of the cells or the placement of the cells, or both, for forming a textured surface on a mastering tool. | 01-20-2011 |
| 20100327235 | SINGLE CONDUCTIVE PELLETS OF LONG GLASS FIBER REINFORCED THERMOPLASTIC RESIN AND MANUFACTURING METHOD THEREOF - Single pellets of a thermoplastic resin containing long glass fibers and a conductive filler are set forth that enable molded articles made from these pellets to exhibit conductivity and, at the same time, high mechanical properties. These pellets have mechanical properties that are substantially equivalent to non-conductive pellets of a thermoplastic resin containing same loading of long glass and provide conductivity that is substantially equivalent to articles obtained by blending two kinds of pellets, one pellet having a conductive filler and the other pellet one containing long glass fibers. The pellets include a thermoplastic resin, a long fiber reinforcing filler and a conductive additive dispersed in the pellet. | 12-30-2010 |
| 20100287858 | CONNECTOR ASSEMBLIES FOR CONNECTING PANELS - In another embodiment, a connector assembly can comprise: a first side collector, comprising a first panel engagement region comprising a first receiving area that has a size to attach onto an edge of a first panel; and a second side collector, comprising a second panel engagement region comprising a second receiving area that has a size to attach onto an edge of a second panel. The first side collector and second side collector can be configured to directly mate with each other to hold to panels together. | 11-18-2010 |
| 20100286358 | COPOLYCARRBONATE-POLYESTERS, METHODS OF MANUFACTURE, AND USES THEREOF - A copolycarbonate-polyester, comprising units of formula | 11-11-2010 |
| 20100280176 | POLYCARBONATE COMPOSITION COMPRISING NANOMATERIALS - A method of preparing a polycarbonate nanocomposite comprising forming a reactant mixture comprising a nanomaterial, a solvent, a dihydroxy compound and an activated carbonate; and polymerizing the dihydroxy compound and the activated carbonate in the presence of the solvent to form the polycarbonate nanocomposite is disclosed. Also disclosed are polycarbonate nanocomposites prepared in accordance with this method, and thermoplastic compositions comprising the polycarbonate nanocomposites. Also disclosed are polycarbonate compositions comprising the nanomaterial. | 11-04-2010 |
| 20100276180 | FLEXIBLE POLY(ARYLENE ETHER) COMPOSITION AND ARTICLES THEREOF - A thermoplastic composition comprises poly(arylene ether) having an initial intrinsic viscosity greater than 0.25 dl/g as measured in chloroform at 25° C.; a polyolefin having a melt temperature greater than or equal to 120° C. and a melt flow rate of 0.3 to 15; a first block copolymer having a aryl alkylene content greater than or equal to 50 weight percent based on the total weight of the first block copolymer; a second block copolymer having an aryl alkylene content less than 50 weight percent based on the total weight of the second block copolymer; and a flame retardant, wherein the poly(arylene ether) is present in an amount greater than the amount of polyolefin. The composition is useful in the production of covered wire. | 11-04-2010 |
| 20100263906 | POLY(ARYLENE ETHER) COMPOSITION AND ARTICLES - A flexible thermoplastic composition comprises a poly(arylene ether), a first block copolymer, a second block copolymer and a flame retardant wherein the second block copolymer comprises a controlled distribution copolymer block. The flexible thermoplastic composition is useful in the manufacture of coated wires. | 10-21-2010 |
| 20100216917 | ALIPHATIC POLYCARBONATES FOR USE IN THERMOSETTING POWDER COATINGS - A thermosetting polymer material capable of being used in powder coatings. The thermosetting polymer material includes at least one hydroxyl functional aliphatic polycarbonates that is formulated and crosslinked with isocyanates to yield a thermoset organic coating material. These materials provide improved weatherability as compared to prior art powder coating materials while also being less expensive than prior art materials utilizing fluorinated polymers. | 08-26-2010 |
| 20100204431 | METHOD OF MAKING AN AROMATIC POLYETHER COMPOSITION USING PHOSPHAZENIUM SALT PHASE TRANSFER CATALYSTS - A method for carrying out a chemical reaction between at least two reactants occupying separate phases within a multiphase reaction mixture has been discovered in which at least one phosphazenium salt is employed as a phase transfer catalyst. The remarkable utility of phosphazenium salts as phase transfer catalysts is illustrated by the preparation of aromatic ethers. The phosphazenium salt phase transfer catalysts are shown to be especially useful in the preparation of aromatic polyethers such as polyether sulfones. | 08-12-2010 |
| 20100174031 | SYNTHETIC RESIN PROCESS AND ARTICLE USEFUL FOR PLATING APPLICATIONS - A method for processing reinforcing filler-filled synthetic resins and applications made therefrom wherein the resulting articles have the ability to be plated to form a structurally aesthetic product substantially free of visual defects. The process utilizes an accelerated heat and cool process to form a resin-rich surface that is substantially free of any reinforcing fillers, such as fiber strands and/or bundles, on the external surface of the article. As such, the resulting article is capable of being plated to form an article that is substantially free of visual defects caused by these fillers on the surface of the article. | 07-08-2010 |
| 20100168314 | THERMOPLASTIC COMPOSITION WITH IMPROVED LOW TEMPERATURE DUCTILITY - Specific thermoplastic compositions containing a polyester or a blend of polyester and polycarbonate, an impact modifier and a block copolyestercarbonate are provided that remain ductile at or below freezing exhibiting an impact energy at or below 0° C. of greater than 25 kjoules/m2. | 07-01-2010 |
| 20100160578 | PROCESS FOR CONTROLLING REACTION STOICHIOMETRY DURING POLYMERIZATION OF THERMOPLASTIC RESINS - The present invention provides a process for measuring and controlling chemical reactions that produce thermoplastic polymers by utilizing a stoichiometry correction during a reaction cycle to produce thermoplastic resins with desired properties. The thermoplastic polymer is made from at least one first monomer having a first reactive end group and at least one second monomer having a second reactive end group by reaction of the first reactive end group with the second reactive end group and has a glass transition temperature of greater than 130° C. | 06-24-2010 |
| 20100159224 | MOISTURE RESISTANT POLYIMIDE COMPOSITIONS - The invention relates to a moisture resistant composition comprising: a) from 20 to 80 weight percent based on the total weight of the composition of a polyetherimide copolymer made from a monomer mixture comprising 3,3′ bisphenol-A dianhydride (BPADA), and 4,4′-diaminodiphenyl sulfone (DDS); b) from 5 to 75 weight percent based on the total weight of the composition of polyetheretherketone (PEEK); and c) from 0 to 30 weight percent based on the total weight of the composition of a filler. The invention relates to a reflector substrate comprising a moisture resistant layer metalized with a reflective layer, wherein the moisture resistant layer comprising the moisture resistant composition. The invention relates to a method for producing a metalized coating without a primer comprising applying a reflective layer directly to a moisture resistant layer in the absence of a primer, wherein the moisture resistant layer comprises the moisture resistant composition. | 06-24-2010 |
| 20100152406 | BPA and Polycarbonate Made from Renewable Materials - Bio-derived bisphenol A is made by combining bio-derived phenol and/or bio-derived acetone in the presence of a catalyst, The phenol or the acetone or both contain at least 0.5%, for example at least 1 weight % of bio-derived impurities. In the case of bio-derived phenol, these impurities may include one or more of 2-methylbenzofuran, 2-methoxyphenol, 2-methylphenol, 4-methylphenol (para-cresol) or 2-methoxy-4-methylphenol. In the case of acetone, the impurity may be ethanol, mesityl acetone and/or diacetone alcohol. This bio-derived BPA can be used in the production of polycarbonates with less fossil fuel-based carbon content. | 06-17-2010 |
| 20100152344 | FLAME RETARDANT THERMOPLASTIC POLYCARBONATE COMPOSITIONS - Polycarbonate compositions are disclosed. The compositions comprise an optional polycarbonate polymer (A); a polycarbonate-polysiloxane copolymer (B); a phosphorous-containing flame retardant (C); and a reinforcing agent (D). The resulting compositions have an improved combination of properties, particularly Vicat softening temperature and high flame retardance in thin walls. | 06-17-2010 |
| 20100147548 | ELECTRICAL WIRE COMPRISING AN AROMATIC POLYKETONE AND POLYSILOXANE/POLYIMIDE BLOCK COPOLYMER COMPOSITION - An electrical wire comprising a conductor and a covering disposed over the conductor. The covering comprises a thermoplastic composition. The thermoplastic composition comprises a blend of an aromatic polyketone and a polysiloxane/polyimide block copolymer. The composition can further comprise one or more additives. | 06-17-2010 |
| 20100145103 | METHOD FOR PURIFYING ACETONE - A method for purifying a crude acetone raw material containing low molecular weight impurities using three columns in sequence is disclosed. The method comprises the steps of feeding the crude acetone raw material into a first column; adding an alkaline reagent and an oxidative reagent into the first column; feeding the first bottom fraction to a second rectification column; optionally adding an alkaline reagent to the second column above the charge point of the bottom fraction; separating a purified acetone from the high molecular weight impurities and removing the purified acetone as a top fraction by distillation in the second column, thereby forming a second bottom fraction comprising an acetone mixture comprising high molecular weight impurities; feeding the second bottom fraction comprising the acetone mixture to a third rectification column; removing a top fraction from the third column; and returning the top fraction removed from the third column to the first column, wherein the second rectification column is operated at atmospheric pressure, and wherein the purified acetone has an acetaldehyde level of less than 5 ppm and a KT-Test time of greater than 11 hours, as measured by the SABIC KT-Test method. | 06-10-2010 |
| 20100140075 | METHOD FOR PURIFYING ACETONE - A method for purifying a crude acetone raw material containing low molecular weight impurities using two columns is disclosed. The method comprises the steps of feeding the crude acetone raw material into a first column; adding an alkaline reagent and an oxidative agent into the first column to form high molecular weight impurities; removing a top fraction from the first column by distillation to form bottom fraction comprising an acetone mixture comprising high molecular weight impurities; feeding the bottom fraction comprising the acetone mixture obtained to a second rectification column at a charge point on the column; adding an alkaline reagent to the second column above the charge point of the bottom fraction fed; and separating a purified acetone from the high molecular weight impurities and removing the purified acetone as a top fraction by distillation in the second column, wherein the second rectification column is operated at atmospheric pressure. | 06-10-2010 |
| 20100130700 | POLYESTERCARBONATE COPOLYMERS WITH HIGH SCRATCH RESISTANCE - Disclosed are polyestercarbonate copolymers comprising a carbonate unit of Formula (I), an ITR ester unit of Formula (V), and optionally a different carbonate unit of Formula (VI): | 05-27-2010 |
| 20100129649 | TRANSPARENT THERMOPLASTIC COMPOSITIONS HAVING HIGH FLOW AND DUCTILIY, AND ARTICLES PREPARED THEREFROM - Disclosed herein is a thermoplastic composition comprising a combination of: a polysiloxane-polycarbonate copolymer and a poly(aliphatic ester)-polycarbonate copolymer comprising soft block ester units of the formula (8a): | 05-27-2010 |
| 20100129609 | MULTIWALL SHEET, AN ARTICLE, A METHOD OF MAKING A MULTIWALL SHEET - In one embodiment, a multiwall sheet comprises a first sheet comprising an inner surface and an outer surface, a second sheet comprising a first surface and a second surface; and a rib disposed between the inner surface and the first surface. The outer layer can have surface features and has a surface area of greater than or equal to 140% of a planar, flat, non-profiled surface area for a same unit area. | 05-27-2010 |
| 20100128467 | Backlit Devices with Multiwall Sheets and Methods of Making the Same - Disclosed herein are backlit devices comprising multiwall sheets ( | 05-27-2010 |
| 20100124653 | COLORED DIFFUSION SHEETS, METHODS OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME - Disclosed herein is a polymeric sheet that includes a first polymeric layer; and a second foamed layer; the first polymeric layer being in operative communication with the second foamed layer; the polymeric sheet having a percent light transmission as measured according to ASTM D 1003 of about 3% to about 80% at a thickness of greater than or equal to about 1,000 micrometers. Disclosed herein too is a method that includes disposing a first polymeric layer upon a second foamed layer to form a polymeric sheet; the first polymeric layer being in operative communication with the second foamed layer; the polymeric sheet having a percent light transmission as measured according to ASTM D 1003 of about 3% to about 80% at a thickness of greater than or equal to about 1,000 micrometers. | 05-20-2010 |
| 20100124644 | X-RAY AND/OR METAL DETECTABLE ARTICLES AND METHOD OF MAKING THE SAME - An article and thermoplastic composition including polycarbonate, a polysiloxane-polycarbonate and an x-ray detectable or metal detectable agent having good magnetic permeability and/or electrical conductivity wherein the composition may be used in articles for food preparation. The thermoplastic compositions are useful in forming molds for manufacturing a food product, such as chocolate molds. | 05-20-2010 |
| 20100123097 | Method for Making Carbonates and Esters - A method for forming a monomeric carbonate includes the step of combining a monofunctional alcohol or a difunctional diol with an ester-substituted diaryl carbonate to form a reaction mixture. Similarly, a method for forming a monomeric ester includes the step of combining a monofunctional carboxylic acid or ester with an ester-substituted diaryl carbonate to form a reaction mixture. These methods further include the step of allowing the reaction mixtures to react to form a monomeric carbonate or a monomeric ester, respectively. | 05-20-2010 |
| 20100122845 | POLY(ARYLENE ETHER) COMPOSITION AND A COVERED CONDUCTOR WITH FLEXIBLE COVERING WALL AND LARGE SIZE CONDUCTOR - Disclosed herein is covered conductors with a normal to large conductor cross-section area (AWG 5 to AWG 24). The thickness of the coating can be, for example, 0.25 to 8.0 millimeter (mm). Also disclosed are a thermoplastic composition comprising a poly(arylene ether) having an intrinsic viscosity greater than 0.25 dl/g as measured in chloroform at 25° C., a styrenic resin, a polyolefin resin, and optionally a flame retardant, a compatibilizer, or a combination of a flame retardant and a compatibilizer. The coating comprises the thermoplastic composition described above. | 05-20-2010 |
| 20100120993 | ALIPHATIC DIOL-BASED POLYCARBONATES, METHOD OF MAKING, AND ARTICLES FORMED THEREFROM - Disclosed herein is a copolymer comprising isosorbide carbonate units and a polysiloxane block, wherein the copolymer comprises greater than or equal to 50 mol % isosorbide carbonate units. | 05-13-2010 |
| 20100113819 | Method for Making Carbamates, Ureas and Isocyanates - The present invention provides methods of forming carbamates, ureas, and isocyanates. In certain embodiments these methods include the step of reacting an amine with an ester-substituted diaryl carbonate to form an activated carbamate which can be further derivitized to form non-activated carbamate or a urea. The urea or carbamate can be subjected to a pyrolysis reaction to form isocyanate. | 05-06-2010 |
| 20100112289 | SHEET, AN ARTICLE, AND A METHOD OF MAKING A SHEET - Disclosed is a sheet that comprises protrusions comprising a first portion extending from a base by a second portion where a second portion diameter is less than a first portion diameter. Also disclosed is a sheet that comprises a first portion and a second portion extending from a symmetry plane, where the protrusions repeat across a length of the sheet along the symmetry plane where the first portion has a first portion diameter and the second portion has a second portion diameter and where the second portion diameter is less than the first portion diameter. A sheet comprising a plurality of cavities across a width of the sheet where each cavity extends the length of the sheet and the cavity has an opening diameter that is smaller than a body diameter is also disclosed. | 05-06-2010 |
| 20100112278 | MULTIWALL SHEET, AN ARTICLE, A METHOD OF MAKING A MULTIWALL SHEET - Disclosed herein is a multiwall sheet that comprises a first wall, a second wall, an intermediate wall disposed between the first wall and the second wall, a first set of ribs disposed between the first wall and the intermediate wall, and a second set of ribs disposed between the second wall and the intermediate wall. No ribs are in direct vertical alignment so as to align from the first wall to the second wall and no ribs are on a side of the first wall opposite the intermediate wall or on a side of the second wall opposite the intermediate wall. Also disclosed is a method for making a multiwall sheet. | 05-06-2010 |
| 20100109353 | VEHICLE BUMPER SYSTEM WITH ENERGY ABSORBER - A vehicle bumper system includes a beam configured to attach to a vehicle and a thermoformed energy absorber positioned on the beam. The energy absorber comprises a frame and a crush lobe extending from the frame. The crush lobe comprises a lobe wall extending between the frame and an outer wall. The change in lobe wall thickness may be constant. The outer wall is curved away from the frame. | 05-06-2010 |
| 20100105822 | BIODEGRADABLE THERMOPLASTIC COMPOSITIONS - A biodegradable thermoplastic composition that includes a polyhydroxyalkanoate polyester, a conventional polymer having a melting temperature of 220° C. or less, a compatibilizer and a pro-degradation additive. These compositions comply with global standards regarding biodegradable materials and may be used in a wide array of applications, such as cosmetic containers, cell phones, laptops, and packaging applications. | 04-29-2010 |
| 20100099919 | METHOD FOR PRODUCING PHENOL AND ACETONE - A method for producing phenol and acetone in a multi-stage process at an elevated temperature from a cumene hydroperoxide mixture comprising cumene, the method comprising the steps of a) reacting the cumene hydroperoxide mixture with a 2-hydroxybenzenesulfonic acid catalyst having a concentration of 0.1 to 1 mmol/L acid catalyst to form a second mixture comprising phenol, acetone and dicumyl peroxide in a first stage and decomposing the second mixture in a second stage to produce a third mixture comprising phenol and acetone. | 04-22-2010 |
| 20100099832 | ISOSORBIDE-BASED POLYCARBONATES, METHOD OF MAKING, AND ARTICLES FORMED THEREFROM - Disclosed herein is an isosorbide-based polycarbonate polymer comprising: an isosorbide unit, an aliphatic unit derived from a C | 04-22-2010 |
| 20100087573 | HALOGEN-FREE FLAME RETARDANT THERMOPLASTIC COMPOSITIONS - Flame retardant thermoplastic compositions are provided containing a melamine diamine phosphate; optionally a nitrogen compound based on condensed triazine derivative, and optionally reinforcing fillers; where the composition has excellent chemical resistance to alkaline media. The compositions have utility in battery casing applications as well as other applications wherein a halogen-free flame retardant composition has utility. | 04-08-2010 |
| 20100081784 | METHOD OF MAKING ISOSORBIDE POLYCARBONATE - A polycarbonate is provided that contains repeat units derived from isosorbide and a residue derived from an activated diaryl carbonate. The polycarbonate has | 04-01-2010 |
| 20100080972 | THERMOPLASTIC COMPOSITION HAVING IMPROVED X-RAY CONTRAST, METHOD OF MAKING, AND ARTICLES PREPARED THEREFROM - Disclosed herein is an article and thermoplastic composition comprising a polysiloxane-polycarbonate, optionally, a polycarbonate, and an X-ray contrast agent comprising X-ray scattering atoms having an atomic number of greater than or equal to 22, wherein an article molded from the thermoplastic composition and having a thickness of 3.2 mm has a notched Izod impact (NII) strength of greater than or equal to about 620 J/m, when measured at a temperature of 0° C. according to ASTM D256-04, or a notched Izod impact strength of greater than or equal to about 409 J/m, when measured at a temperature of −30° C. according to ASTM D256-04, wherein an article molded from the thermoplastic composition and having a thickness of 3.2 mm has an Equivalent Al Thickness of greater than 0.51 mm, when irradiated with 50 kV X-ray radiation, and wherein for melt volume rates of the thermoplastic composition determined under a load of 1.2 kg at a temperature of 300° C. according to ASTM D1238-04, a melt volume rate measured at a dwell time of 18 minutes increases relative to a melt volume rate measured at a dwell time of 6 minutes by less than or equal to 31%. A method of improving X-ray contrast in a polycarbonate composition, and specific articles are also disclosed. | 04-01-2010 |
| 20100048853 | POLYETHERIMIDE POLYMER FOR USE AS A HIGH HEAT FIBER MATERIAL - Various embodiments of polymer fibers comprising a high heat polymer and process for making the polymer fibers are provided. In one embodiment, synthetic polymer fibers comprise polyetherimide polymer that is substantially free of foreign particulate matter greater than about 100 microns in size. A process for producing polymer fiber includes melting polymer comprising polyetherimide to a melt temperature that ranges from about 180-500° C. to form a molten polymer; passing the polyetherimide that is substantially free of foreign particulate matter above about 100 microns in size, through a spinneret comprising a plurality of hole openings to produce a fiber bundle; and cooling the fiber bundle with a cooling medium having a temperature that ranges from about 0° C. to about 80° C. | 02-25-2010 |
| 20100043880 | LUMINESCENT SOLAR COLLECTOR - A luminescent solar collector contains a first fluorescent dye and a dye compound of Formula (I) or (II): | 02-25-2010 |
| 20100043879 | LUMINESCENT SOLAR COLLECTOR - Disclosed are fluorescent dye compounds of Formula (I) or (II): | 02-25-2010 |
| 20100043878 | LUMINESCENT SOLAR COLLECTOR - Disclosed are fluorescent dye compounds of Formula (I): | 02-25-2010 |
| 20100043875 | LUMINESCENT SOLAR COLLECTOR - A luminescent solar collector comprises a sheet and a light energy converter operatively connected to the sheet, the sheet comprising a thermoplastic polymer and dispersed therein at least two dyes A and B; wherein dye A is a fluorescent dye of Formula (I) and dye B is either a perylene dye of Formula (II) or a diketopyrrolopyrrole dye of Formula (III): | 02-25-2010 |
| 20100012373 | POLY(ARYLENE ETHER) COMPOSITION AND A COVERED CONDUCTOR WITH THIN WALL AND SMALL SIZE CONDUCTOR - A covered conductor comprising: a conductor; and a covering comprising a thermoplastic composition and the thermoplastic composition comprises: a poly(arylene ether) having an intrinsic viscosity greater than 0.25 dl/g as measured in chloroform at 25° C., a poly(alkenyl aromatic)polymer, a polyolefin resin and optionally a flame retardant and a compatibilizer, wherein the covered conductor essentially meets the performance requirement of ISO 6722, wherein the covering is disposed over the conductor, wherein the conductor has a cross section that meets as least one of following: (i) American Wire Gauge (AWG) from AWG 56 to AWG 26, (ii) a cross-section area from 0.000122 to 0.128 mm | 01-21-2010 |
| 20100010273 | PROCESS FOR PRODUCING BISPHENOL-A - A process for preparing 2,2-bis(4-hydroxyphenyl)propane (p,p-bisphenol-A) from 2,4,4-trimethyl-2-(4-hydroxyphenyl)chroman (chroman 1.5) is disclosed. Phenol and chroman 1.5 are contacted over an acidic ion exchange resin at a given temperature for a given period of time. The process results in improved quality of p,p-bisphenol-A, better performance of catalyst, improved raw material usage, and reduced waste. | 01-14-2010 |
| 20100009207 | FORMABLE THERMOPLASTIC MULTI-LAYER ARTICLE, A FORMED MULTI-LAYER ARTICLE, AN ARTICLE, AND A METHOD OF MAKING AN ARTICLE - Disclosed is a formable thermoplastic multi-layer article comprising an outer layer comprising a polymer comprising resorcinol arylate polyester chain members, a middle layer comprising a thermoplastic polymer, an inner tie-layer comprising a thermoplastic polymer comprising a carbonate polymer and bulk polymerized acrylonitrile-butadiene-styrene (ABS), the middle layer being between the outer layer and the inner tie-layer and being in contact with both the outer layer and the inner tie-layer. Also disclosed is a thermoformed multi-layer article. A method of making the article is also disclosed. | 01-14-2010 |
| 20100003523 | Coated Film for Insert Mold Decoration, Methods for Using the Same, and Articles Made Thereby - A coated thermoplastic film can be subjected to printing to obtain a decorative film, preformed (for example, thermoformed), and then inserted into a mold that has the configuration of the preformed decorative film. A base polymeric structure comprising a polymer such as a polycarbonate or blend thereof can be injection molded to the exposed surface of the preformed decorative film. The molded structure has various applications such as cell phones or other electronic devices, automotive vehicles, appliances, display panels, lenses, etc. A process for making the molded article is also described. The coating for the coated thermoplastic film can be made from a UV-curable composition and can provide superior embossing and thermoformability, hardness, and adhesion, while providing enhanced chemical, scratch and abrasion resistance. | 01-07-2010 |
| 20090318629 | POLYSILOXANE-POLYCARBONATE COMPOSITIONS, AND RELATED METHODS AND ARTICLES - A composition, comprising, based on the total weight of the polymer components in the composition, 1 to 40 wt. % of an aromatic polycarbonate, 30 to 98.8 wt. % of a polysiloxane-polycarbonate block copolymer, and 0.1 to 10 wt. % of a polysiloxane-polyimide block copolymer comprising more than 20 wt. % polysiloxane blocks, based on the total weight of the polysiloxane-polyimide copolymer. The compositions provide articles with low haze, high luminous transmittance, and good hydro-aging properties. The articles can further be formulated to have excellent flame retardance, particularly when KSS is used. | 12-24-2009 |
| 20090318604 | POLYCARBONATE COMPOSITIONS - Polycarbonate compositions are disclosed. The compositions comprise a polycarbonate polymer (A) having repeating units derived from 2-phenyl-3,3-bis(4-hydroxyphenyl)phthalimidine (PPPBP); a polycarbonate polymer (B) which is different from polymer (A); an impact modifier (C) which is different from polymer (A) and polymer (B); and talc filler (D). The resulting composition has an improved combination of properties, particularly heat resistance, low temperature impact performance, and viscosity. | 12-24-2009 |
| 20090312503 | Method of Producing High Molecular Weight Polymer - The present invention provides methods of producing high molecular weight polymer. A method of forming polycarbonate includes the step of combining in a reaction mixture a diaryl carbonate, a transesterification catalyst, an aliphatic dihydroxy compound, and a diacid compound in a reactor system. The temperature and pressure of the reactor system are adjusted to a first reactor setpoints and the reaction mixture is monitored to detect initiation of the exothermic oligomerization reaction. The reactor setpoint are adjusted to second reactor setpoints after detection of initiation of the exothermic oligomerization reaction. The reactor system is maintained at the second reactor setpoints to allow the reaction mixture to react to form an oligomer mixture. The oligomer mixture is then introduced to a polymerization reactor system operating under melt polymerization conditions sufficient to polymerize the oligomer mixture to a Mw of at least 9,000 g/mol (PC) and to remove the phenolic byproduct from the oligomer mixture to form polycarbonate. | 12-17-2009 |
| 20090312479 | POLYCARBONATE COMPOSITIONS - Polycarbonate compositions having an improved balance of physical properties, particularly tensile modulus, impact strength, and flow properties, are disclosed. The compositions comprise a polycarbonate polymer, an impact modifier, a non-glass filler, and an alicyclic hydrocarbon resin. They may further comprise an acrylate polymer and an organic phosphate. | 12-17-2009 |
| 20090292128 | PRODUCTION OF LOW COLOR POLYETHERIMIDES - The production of low color polyetherimides, including its intermediates, such as bisimides and diaryl diether dianhydrides, may be affected by producing an improved purity intermediate of 4-nitro-N-alkylphthalimide. A salt, such as alkali metal carbonate or alkali metal hydrogen carbonate, is added to an aqueous mixture of 4-nitro-N-alkylphthalimide and 3-nitro-N-alkylphthalimide to selectively hydrolyze the imide linkage of 3-nitro-N-alkylphthalimide forming a water-soluble acid-amide salt. An organic solvent is added to this salt mixture to phase separate 4-nitro-N-alkylphthalimide having dissolved in the organic solvent from acid-amide salt of 3-nitro-N-alkylphthalimide having dissolved in water. | 11-26-2009 |
| 20090292051 | HIGH DIELECTRIC CONSTANT LASER DIRECT STRUCTURING MATERIALS - High dielectric constant thermoplastic compositions that are capable of being used in a laser direct structuring process. The compositions include a thermoplastic base resin, a laser direct structuring additive, and at least one ceramic filler. The compositions provide a high dielectric constant, low loss tangent thermoplastic composition. The compositions can be used in a variety of applications such as personal computers, notebook and portable computers, cell phone antennas and other such communications equipment, medical applications, RFID applications, and automotive applications. | 11-26-2009 |
| 20090286952 | METHOD OF FORMING POLYCARBONATE - A method of forming polycarbonate includes the steps of introducing a plurality of reaction components to a reactor operating under melt polymerization conditions and removing ester-substituted phenol from the reactor. The plurality of reaction components include a dihydroxy compound, an ester-substituted diaryl carbonate, and a melt transesterification catalyst. The reaction components are introduced in a plurality of reaction component streams. A first reaction component streams includes a melt transesterification catalyst dissolved or suspended in a liquid carrier containing an ester-substituted phenol. The composition of the first reaction component stream is selected such that ester-substituted phenol is not generated as a reaction product in the first reaction component stream. | 11-19-2009 |
| 20090284970 | Bulb Reflector for Thin Direct Lit Backlights - In one embodiment, a backlight assembly comprises: a bulb having a bulb first side and a bulb second side located on a side of the bulb opposite the first side, a reflector plate disposed on the bulb first side, and a front bulb reflector disposed over the bulb second side. The front bulb reflector has a partially reflective member capable of reflecting greater than or equal to 60% of light from the bulb toward the reflector plate, and an inner surface on a reflector second side located opposite the reflector first side. The overall geometry of the front bulb reflector is concave on the reflector second side and convex on the reflector first side. | 11-19-2009 |
| 20090275684 | HIGH CTI POLY(ARYLENE ETHER) COMPOSITION - Disclosed herein is a thermoplastic composition comprising: a poly(arylene ether); a poly(alkenyl aromatic) resin, an organophosphate ester flame retardant, and tricalcium phosphate. The composition may further comprise a reinforcing filler, black pigment, or combination thereof. | 11-05-2009 |
| 20090266991 | METHOD OF AUTHENTICATING TAGGED POLYMERS - In one embodiment, a tagged polymer composition, comprises: a base polymer composition comprising a forensic polymer composition and a dynamic response authentication marker. The forensic polymer composition comprises a marked polymer having a forensic authentication marker. The forensic authentication marker is present in an amount sufficient to be detected by a forensic analytical technique. The dynamic response authentication marker is present in an amount sufficient to be detected by a dynamic response analytical technique and wherein, when tested, the dynamic response authentication marker has a change in mode. | 10-29-2009 |
| 20090264685 | METHOD FOR PRODUCING PHENOL AND ACETONE - A method for producing phenol and acetone in a multi-stage process at an elevated temperature from a cumene hydroperoxide mixture comprising cumene, comprises the steps of: | 10-22-2009 |
| 20090259014 | PROCESS FOR PREPARING POLYESTERCARBONATES - Processes for preparing polyestercarbonates are disclosed. The processes allow for the consistent incorporation of adipic acid into a polymer generated from a dihydroxy compound, such as bisphenol-A, at levels greater than 99%. The polyestercarbonates so produced, as well as articles formed from the polyestercarbonates, are also disclosed herein. | 10-15-2009 |
| 20090258991 | Polyetherimide and Polyetherimide Sulfone Blends Having Automotive Lighting Applications - Compositions and articles of manufacture made therefrom for use in high temperature application, such as automotive reflectors, have a minimum haze onset temperature of about 205° C. and are made from a transparent, miscible blend of from about 30 to about 70 weight percent of a polyetherimide sulfone comprising greater than or equal to 50 mole percent of the polymer linkages have an aryl sulfone group and from about 70 to about 30 weight percent of a polyetherimide or polyimide. | 10-15-2009 |
| 20090256119 | FILLED COMPOSITIONS AND A METHOD OF MAKING - A composition comprises a poly(arylene ether), a polyamide, electrically conductive filler, an impact modifier, and wollastonite wherein the wollastonite particles have an average length to diameter ratio less than or equal to 5 and a median particle size of 2 to 5 micrometers. Methods of making the composition are also described. | 10-15-2009 |
| 20090247726 | MONOMER SOLUTION FOR PRODUCING POLYCARBONATE - A non-reactive monomer mixture contains a monomer component and a diaryl carbonate dispersed in the mixture. The monomer component includes one or more monomer compounds having a melting point below the melting point of the diaryl carbonate. The monomer component has less than 600 ppb alkali metal, an acid stabilizer, or both less than 600 ppb alkali metal and an acid stabilizer. The monomer compounds of the monomer component and the diaryl carbonate are present in a mole ratio of from 0.9 to 1.1. The monomer mixture is at a temperature between the melting temperature of the lowest melting monomer compound and less than 5° C. above the melting point of the diaryl carbonate. | 10-01-2009 |
| 20090247707 | PROCESS FOR THE PREPARATION OF SULFONATE AND SULFONATE SALT CAPPED POLYARYLATE RESINS WITH IMPROVED FLOW - A process for preparing a sulfonate terminated polyarylate comprises blending a polyarylate resin with an organic compound to form a reaction mixture, wherein the organic compound contains at least one aliphatic primary amine functional group and at least one other functional group selected from the group consisting of sulfonic acids, sulfonic acid salts, and mixtures thereof, and heating the reaction mixture to a temperature of 225 to 400° C. The temperature of heating is above the glass transition temperature of the polyarylate resin. Sulfonate terminated polyarylates and compositions prepared using the above process, and articles comprising the sulfonate terminated polyarylate compositions, are also disclosed. | 10-01-2009 |
| 20090247039 | INTRINSICALLY CONDUCTIVE THERMOPLASTIC COMPOSITION AND COMPOUNDING PROCESSING FOR MAKING CONDUCTIVE FIBER - A conductive thermoplastic composition capable of forming conductive fibers including monofilaments, methods of making these compositions, and fibers including these compositions. The conductive thermoplastic compositions may be formed using any method capable of forming the compositions into fibers. The fibers are substantially smooth and/or are capable of being woven into fabrics or other articles to provide conductive properties to the fabric or article. These fibers provide effective static charge dissipation that may be imparted into applications such conveying belts or protective clothing for clean room operation. | 10-01-2009 |
| 20090242844 | FLAME RESISTANT POLYPHTHALAMIDE/POLY(ARYLENE ETHER) COMPOSITION - Disclosed herein is a flame resistant composition comprising a compatibilized blend of a polyphthalamide and a poly(arylene ether); and a phosphinate, wherein the composition is substantially free of linear aliphatic polyamides. | 10-01-2009 |
| 20090236565 | THERMOPLASTIC COMPOSITION WITH IMPROVED POSITIVE TEMPERATURE COEFFICIENT BEHAVIOR AND METHOD FOR MAKING THEREOF - The present invention relates to a thermoplastic resin composition that includes a first phase polymeric material, at least one conductive filler and a second phase polymeric material where in the first phase polymer and second phase polymer are in co-continuous in nature and said conductive composition exhibits positive temperature coefficient behavior. The invention also relates to a method of making a co-continuous conductive composition that exhibits positive temperature coefficient behavior. | 09-24-2009 |
| 20090215949 | FLAME RETARDANT POLYCARBONATE COMPOSITIONS - Blends of polycarbonate (PC) with an impact modifier, such as a butadiene-styrene based polymer like acrylonitrile-butadiene-styrene (ABS) polymers or methacrylate-butadiene-styrene (MBS) polymers, having improved flame retardance are disclosed. From about 0.5% to about 3% by weight of a filler selected from the group consisting of a clay, talc, and aluminum oxide particles are added to the blend. The resulting flame retardant polymer composition has improved flame retardance with acceptable maintenance of mechanical and/or processing properties. | 08-27-2009 |
| 20090186966 | THERMOPLASTIC POLYESTERCARBONATE COMPOSITION - A thermoplastic composition is disclosed, comprising a polymer comprising: a polymer component comprising a polyestercarbonate copolymer comprising carbonate units and ester units having an aliphatic group, wherein the molar ratio of carbonate units to ester units in the polyestercarbonate copolymer is from 99:1 to 60:40; and 0.01 to 10 weight percent, based on the total weight of the polymer component, of a polymeric stabilizing compound comprising at least two epoxy groups, wherein the polymeric stabilizing compound has a weight average molecular weight of 1,000 to 18,000 Daltons; and wherein the thermoplastic composition has greater than 70% molecular weight retention after exposure to steam at 115° C. for 7 days. Also disclosed are articles comprising the composition. | 07-23-2009 |
| 20090185278 | FILM, BACKLIGHT DISPLAYS, AND METHODS FOR MAKING THE SAME - In one embodiment a film can comprises a surface comprising a plurality of prism structures. Each prism structure has a lateral modulation in the w direction of less than or equal to ±20% of an average pitch of the prism structures. The plurality of prism structures can have a variation in the w direction of prism peak height that is discrete and/or continuous. In one embodiment, a method for making a film can comprise forming a plurality of prism structures on a surface. The plurality of prism structures can have a lateral modulation in the w direction of less than or equal to ±20% of an average pitch of the prism structures, and wherein the plurality of prism structures have a variation in the w direction of prism peak height that is discrete and/or continuous. | 07-23-2009 |
| 20090184442 | ANTISTATIC AGENTS, COMPOSITIONS THEREOF, AND METHODS OF MANUFACTURE - A quaternary onium aromatic sulfonate represented by the formula: | 07-23-2009 |
| 20090176946 | POLYCARBONATE BLENDS WITH HIGH SCRATCH RESISTANCE AND DUCTILITY - A blend of a first polycarbonate polymer comprising at least about 85% dimethyl bisphenol cyclohexane (DMBPC) units with a second polycarbonate polymer is disclosed. The blend has a combination of high scratch resistance and good ductility. | 07-09-2009 |
| 20090163691 | METHOD FOR PURIFICATION OF POLYETHER POLYMERS AND MIXTURES RESULTING THEREFROM - A method for the purification of aromatic polyether polymers prepared by a halide displacement polymerization process comprises adsorbing the catalyst with an alkali metal halide to form an adsorbent component and then removing the adsorbent component. Mixtures resulting from this method are also discussed. | 06-25-2009 |
| 20090160203 | TRAY ENERGY ABSORBER AND BUMPER SYSTEM - The present invention provides for various embodiments of a tray energy absorber comprising a base, a first transverse wall that is arcuate and extends from the base, a second transverse wall spaced apart from the first transverse wall and which extends from the base. The tray energy absorber further comprises a plurality of ribs that extend from the base joining the first transverse wall to the second transverse wall. In one embodiment the density of the ribs varies along the transverse width of the tray energy absorber. In another embodiment at least one of the plurality of ribs is greater than 50% of the height of the first transverse wall or the second transverse wall where the rib joins the first and second transverse walls. The present invention also provides for a bumper system used in a vehicle that includes a tray energy absorber attached to a bumper beam. The bumper system optionally includes a fascia that substantially envelops the bumper beam and the tray energy absorber. | 06-25-2009 |
| 20090159384 | ENERGY ABSORBER AND SYSTEM - Various embodiments of an energy absorber are included. In one embodiment, the energy observer includes a base, a top spaced apart from the base and a plurality of legs that extend from the top to the base and that are spatially arranged relative to one another with window openings interposed between them. In another embodiment, the interface of each of the plurality of legs that contact the top are vertically offset from the interface of each of the legs at the base. The present invention also provides for an energy absorber system that includes at least one energy absorber comprising at least one mating connector component that connects to another mating component of another energy absorber. | 06-25-2009 |
| 20090146109 | THERMOPLASTIC POLY(ARYLENE ETHER)/POLYAMIDE BLENDS AND METHOD OF MAKING - A thermoplastic composition comprises: | 06-11-2009 |
| 20090143610 | Method of preparing a purified ester-substituted phenol stream - A method of producing a purified ester-substituted phenol stream is provided. The method includes a first step of obtaining from a melt transesterification reaction a byproduct stream containing a residual ester-substituted diaryl carbonate, an ester-substituted phenol, a residual melt transesterification catalyst, and a catalyst degradation product. A second step includes treating the reaction byproduct stream to separate ester-substituted phenol and catalyst degradation product from residual ester-substituted diaryl carbonate and residual melt transesterification catalyst to create a light recycle stream containing ester-substituted phenol and catalyst degradation product and a heavy recycle stream containing residual ester-substituted diaryl carbonate and residual melt transesterification catalyst. A third step includes treating the light recycle stream to reduce catalyst degradation product concentration thereby producing a purified ester-substituted phenol stream. | 06-04-2009 |
| 20090126778 | LUMINESCENT SOLAR CONCENTRATORS - A luminescent solar concentrator comprises a primary waveguide and at least one photovoltaic cell. The primary waveguide has a curved surface which concentrates light on a perimeter. The photovoltaic cell is oriented at the perimeter so that it can both receive the concentrated light and receive direct light as well. A back sheet may be provided that provides structural support and protection. The perimeter may have the shape of a polygon where a photovoltaic cell is oriented along each edge. Modules and arrays of such units are also disclosed. | 05-21-2009 |
| 20090124749 | SCRATCH RESISTANT POLYCARBONATE COMPOSITIONS - A thermoplastic composition having improved scratch resistance comprising in combination from 20 to 80 wt. % of a polycarbonate homopolymer or copolymer comprising repeat carbonate units having the following structure: | 05-14-2009 |
| 20090115104 | System and Method for Forming Polymer - Various systems and methods for forming a polymer part with utilizing heating fluid are provided. In one embodiment of the present invention a method for forming polymer includes heating the mold apparatus with a first heat energy source comprising heating fluid to a first mold temperature, and then heating the mold apparatus with a second energy source which is different than the first energy source. The second energy source heats the mold surface to a second mold temperature greater than the first mold temperature to form the part to achieve a desired surface finish of the polymer part. | 05-07-2009 |
| 20090088549 | Monomer Solution for Producing Polycarbonate - A non-reactive monomer mixture has a monomer component dispersed in a melted diaryl carbonate. The monomer component has one or more monomer compounds having a melting point below the melting point of the diaryl carbonate. Furthermore, the monomer component has less than 600 ppb alkali metal, an acid stabilizer, or both less than 600 ppb alkali metal and an acid stabilizer. The monomer compounds of the monomer component and the diaryl carbonate are present in a mole ratio of from 0.9 to 1.1. The monomer mixture is at a temperature between the melting temperature of the lowest melting monomer compound and the melting temperature of the diaryl carbonate. | 04-02-2009 |
| 20090088540 | Monomer Solution for Producing Polycarbonate - A non-reactive monomer mixture is formed from a dihydroxy component having one or more dihydroxy compounds dissolved in a melted diaryl carbonate. The dihydroxy component has less than 600 ppb alkali metal, an acid stabilizer, or both less than 600 ppb alkali metal and an acid stabilizer. The dihydroxy compounds of the dihydroxy component and the diaryl carbonate are present in a mole ratio of from 0.9 to 1.1. The monomer mixture is at a temperature between the saturation point of the monomer mixture and the highest melting temperature of the individual dihydroxy compounds. The non-reactive monomer mixture can be stored and transported and then polymerized to form polycarbonate upon addition of a catalyst. | 04-02-2009 |
| 20090088538 | Method of Producing Polycarbonate in a Flash Devolatilization System - The present invention provides a reactor system for producing polycarbonate. The reactor system has one or more reactant vessels, an oligomerization reactor, a first pressure control device, a preheater, a second pressure control device, a distributor, and a flash tank. The one or more reactant vessels contain reactants contain a melt transesterification catalyst, a dihydroxy compound, and an activated diaryl carbonate. The reactor system is connected in the following configuration: (i) the one or more reactant vessels connected to the oligomerization reactor, (ii) the first pressure control device disposed between and connecting the outlet of the oligomerization reactor and the inlet of the preheater; (iii) the second pressure control device disposed between and connecting the outlet of the preheater and the distributor; and (iv) the distributor disposed at the inlet to the flash tank. The pressure in the preheater is controllable at a pressure intermediate between the pressure in the oligomerization reactor and the flash tank. | 04-02-2009 |
| 20090088514 | POLYCARBONATE COMPOSITION HAVING IMPROVED IMPACT, FLAMMABILITY AND SURFACE APPEARANCE, METHOD OF MAKING, AND ARTICLES PREPARED THEREFROM - A thermoplastic composition comprises 55 to 97 weight percent of a polycarbonate; 1 to 25 weight percent of a polysiloxane-polycarbonate comprising siloxane units of the formula: | 04-02-2009 |
| 20090088509 | COPOLYCARBONATE COMPOSITIONS - A copolycarbonate composition is provided comprising a blend of a polycarbonate-polysiloxane copolymer and a terephthalate polymer. The blend has a combination of good melt volume rate, good fatigue resistance, and high ductility at low temperatures. | 04-02-2009 |
| 20090082497 | HIGH CTI POLY(ARYLENE ETHER) COMPOSITION - Disclosed herein is a thermoplastic composition comprising: a poly(arylene ether); a poly(alkenyl aromatic) resin, an organophosphate ester flame retardant, and tricalcium phosphate. The composition may further comprise a reinforcing filler, black pigment, or combination thereof. | 03-26-2009 |
| 20090067155 | METHOD AND APPARATUS FOR FABRICATING OPTICAL SUBSTRATES - In one embodiment, an optical substrate that includes a prism structure modulated along a path in a lateral direction. The path is in the nature of a mathematical function defined over a segment, C, of a coordinate system and characterized by a set of nonrandom, random or pseudorandom parameters selected from the group consisting of amplitude, phase and frequency. | 03-12-2009 |
| 20090056793 | BENZOTERRYLENE DERIVATIVES - A benzoterrylene of Formula (I): | 03-05-2009 |
| 20090052045 | FILM, BACKLIGHT DISPLAYS, AND METHODS FOR MAKING THE SAME - In one embodiment a film can comprises a surface comprising a plurality of prism structures. Each prism structure has a lateral modulation in the w direction of less than or equal to ±20% of an average pitch of the prism structures. The plurality of prism structures can have a variation in the w direction of prism peak height that is discrete and/or continuous. In one embodiment, a method for making a film can comprise forming a plurality of prism structures on a surface. The plurality of prism structures can have a lateral modulation in the w direction of less than or equal to ±20% of an average pitch of the prism structures, and wherein the plurality of prism structures have a variation in the w direction of prism peak height that is discrete and/or continuous. | 02-26-2009 |
| 20090043070 | COPOLYCARRBONATE-POLYESTERS, METHODS OF MANUFACTURE, AND USES THEREOF - A copolycarbonate-polyester, comprising units of formula | 02-12-2009 |
| 20090039320 | METHOD OF MAKING POLY(ARYLENE ETHER) COMPOSITIONS - A method of making a thermoplastic composition comprises melt mixing a concentrate comprising a first thermoplastic, a second thermoplastic and an additive with a component selected from the group consisting of a third thermoplastic, fire retardant additive, reinforcing agent, electrically conductive filler, non-electrically conductive filler and combinations of two or more of the foregoing. | 02-12-2009 |
| 20090036593 | POLYCARBONATE COMPOSITIONS WITH IMPROVED MOLDING CAPABILITY - A thermoplastic composition comprising a polycarbonate, a polycarbonate-polysiloxane copolymer, an impact modifier composition comprising ABS or BABS, a second impact modifier different from BABS or ABS, and an aromatic vinyl copolymer is disclosed. The thermoplastic composition has improved molding capability. | 02-05-2009 |
| 20090036578 | Polyester Compositions, Method Of Manufacture, And Uses Thereof - A composition is described, comprising: (a) from 20 to 80 wt % of a polyester; (b) from 5 to 35 wt % of a flame retardant phosphinate of the formula (I) | 02-05-2009 |
| 20090029615 | Crystallizable Polyetherimides, Method of Manufacture, and Articles Derived Therefrom - A composition is described, which comprises a crystallizable polyetherimide derived from the polymerization of: (a) a dianhydride component, comprising more than 96.8 mole % of 4,4′-bisphenol A dianhydride or a chemical equivalent thereof; and (b) a diamine component comprising a diamine or a chemical equivalent thereof, wherein the crystallizable polyetherimide has a T | 01-29-2009 |
| 20090026663 | THERMOFORMABLE POLYCARBONATE/POLYESTER COMPOSITIONS AND USES - The melt strength and hence the processing window of blends of polycarbonate and PBT can be enhanced without degradation in the surface appearance of the article produced when relatively minor amounts of certain selected polymers are added to the blend. For example, a composition that has a thermoforming processing window of at least 15° C. for an article having a weight that is more than 100 grams, may contain 15 to 80% by weight of a polycarbonate resin; 10 to 80% by weight of polybutylene terephthalate, and 1 to 15% by weight of a semicrystalline melt strength enhancer. The meklt strength enhancer is polyethylene terephthalate (PET), polycyclohexane-dimethyl terephthalate (PCT), polycyclohexanedimethyl terephthalate glycol (PCT-G), and (poly)ethylene co 1,4 cyclohexanedimethylene terephthlate (PET-G), or a combination thereof. | 01-29-2009 |
| 20080318039 | Plastic Laminates and Methods for Making the Same - In one embodiment, a multilayer structure comprises: an initial terpolymer layer, a second layer comprising plastic and/or glass, a polycarbonate layer, and an adhesive layer. The initial terpolymer layer comprises a polycarbonate terpolymer derived from a first dihydroxy compound, a second dihydroxy compound, and a third dihydroxy compound, the first dihydroxy compound has Structure (A) | 12-25-2008 |
| 20080303194 | MOLD APPARATUS FOR FORMING POLYMER AND METHOD - Various mold apparatuses and methods for forming a polymer with induction heat energy are provided. In one embodiment of the present invention, a mold apparatus for forming polymer includes a mold having a top mold portion and a top mold surface that is magnetic. The bottom mold portion of the mold includes an induction heating unit that is at least partially embedded in the bottom mold portion that provides induction heat energy to the mold. The mold apparatus is constructed and arranged to dissipate greater than about 50% of the induction heat energy in the top mold portion. The induction heating unit of the bottom portion of the mold provides rapid heating the top mold surface to provide high surface quality polymer parts a shorter molding cycle time while utilizing less energy. | 12-11-2008 |
| 20080283189 | METHOD FOR REDUCING STRINGINESS OF A RESINOUS COMPOSITION DURING HOT PLATE WELDING - Disclosed is a method for reducing stringiness during hot plate welding of an article comprising a resinous composition which comprises at least one step of contacting with water a surface of the article to be welded. The method also results in improved cycle time for preparation of the final article. | 11-20-2008 |
| 20080262196 | APPARATUS AND METHOD OF SEPARATING A POLYMER FROM A SOLVENT - The present invention relates to various embodiments of a system and method for separating polymer from a solvent. In one embodiment a system for separating polymer from a solvent comprises an extrusion apparatus includes a hollow member having a first end portion, a second end portion, and a feed port between the first end portion and the second end portion. The extrusion apparatus includes a back flash vent port disposed upstream of the feed port and a forward flash vent port disposed downstream of the feed port. The extrusion apparatus further includes a vent insert located at the forward flash vent port, a screw disposed inside the hollow member, and an internal superheating section disposed between the feed port and the downstream vent opening of the hollow member such that the length of the internal superheating section is greater than about four times the diameter, 4D, of the hollow member. | 10-23-2008 |
| 20080200714 | Process for Manufacturing Dimethyl Carbonate - A method of forming a dialkyl carbonate stream, includes obtaining a byproduct stream from a diaryl carbonate formation reaction that has alkanol, residual dialkyl carbonate, and residual aromatic compound. This byproduct stream is introduced to a distillation column to produce an alkanol tops stream and a first dialkyl carbonate bottoms stream. The alkanol tops stream is reacted with oxygen, carbon monoxide, and catalyst to form a second dialkyl carbonate stream that is introduced to the distillation column. The alkanol tops stream from the column contains alkanol, dialkyl carbonate, and less than 20 ppm aromatic compound. The first dialkyl carbonate bottoms stream from the column contains dialkyl carbonate, water, aromatic compound, and less than 2,000 ppm alkanol and is introduced to a water separation device to produce a product dialkyl carbonate stream and a water stream. | 08-21-2008 |
| 20080200713 | Process for Manufacturing Dimethyl Carbonate - The present invention provides methods of forming dialkyl carbonate wherein catalyst buildup in the reaction equipment, the separation equipment, and transfer lines there between is reduced and even eliminated. In one embodiment, the method includes introducing alkanol, carbon monoxide, oxygen, and a catalyst to a reactor having a gaseous head space and a liquid body space. The reactor is operated under conditions to form dialkyl carbonate and water. A product stream containing dialkyl carbonate, water, and residual reactants is removed from the head space of the reactor and introduced to a cyclone with a flushing stream. A liquid bottom stream is captured from the cyclone and introduced to the reactor. The gaseous top stream contains product dialkyl carbonate. | 08-21-2008 |
