Class / Patent application number | Description | Number of patent applications / Date published |
525192000 | Treating polymer or polymer mixture with a chemical treating agent other than solid polymer | 73 |
20090043048 | Peroxide-Cured Thermoplastic Vulcanizates Prepared With Ultrahigh Molecular Weight Plastics - A thermoplastic vulcanizate comprising a dynamically cured rubber, where the rubber is peroxide cured, and a thermoplastic phase, where at least 10% by weight of the thermoplastic phase includes an ultrahigh molecular weight plastic, where the ultrahigh molecular weight plastic is characterized by a M | 02-12-2009 |
20090048399 | Propylene Copolymer Compositions With High Transparency - Propylene copolymer composition comprising a propylene homopolymer (A) as a matrix polymer and a propylene copolymer (B) containing 10-35 wt. % calculated with respect to the amount of B of an olefin other than propylene. | 02-19-2009 |
20090069501 | METHOD OF MAKING AN ALKOXYLATED POLYETHYLENIMINE PRODUCT - A method of making an alkoxylated polyethyleneimine (APEI) product having reduced discoloration includes treating a composition including a component selected from the group of polyethyleneimine (PEI), APEI intermediate, and combinations thereof that is used to make the APEI product. The method of treating the composition includes heating a composition that includes an adduct of a conjugate base and PEI, water, and the component at a temperature of from 158 to 338° F. for a period of at least three hours in the absence of additional water in order to substantially decompose the adduct in the composition. The aqueous solutions of APEI product thus made have Gardner color values of less than 6. | 03-12-2009 |
20100010161 | PRODUCTION OF METATHESIS PRODUCTS BY HIGH MELTING POLYMER SEGMENT INTERCHANGE - Two or more chemically distinguishable ethylenically unsaturated polymers, at least one having from 0.001 to 50 mole percent unsaturation and at least one other having an expected Tg or measured Tm value greater than 100° C. are cross-metathesized to form thermoplastic elastomers having improved performance properties. | 01-14-2010 |
20100036057 | RUBBER COMPOSITION AND PNEUMATIC TIRE USING THE SAME - This invention relates to a rubber composition capable of highly improving a steering stability without deteriorating fracture characteristics and wear resistance of a tire by using in a tread rubber of the tire, and more particularly to a rubber composition comprising 10 to 200 parts by mass of a component (B): an aromatic vinyl compound-conjugated diene compound copolymer or a conjugated diene compound polymer having a weight average molecular weight as measured through a gel permeation chromatography and converted to polystyrene of 1.0×10 | 02-11-2010 |
20100056723 | THERMOPLASTIC ELASTOMER COMPOSITION - A thermoplastic elastomer composition containing a dynamically cross-linked composition of
| 03-04-2010 |
20100081767 | Articles Formed from Nucleated Polyethylene - Polymer articles and processes of forming the same are described herein. The processes generally include providing an ethylene based polymer, blending the ethylene based polymer with a modifier to form modified polyethylene and forming the modified polyethylene into a polymer article, wherein the polymer article exhibits a haze that is at least about 10% less than a polymer article prepared with a similarly modified polyethylene. | 04-01-2010 |
20100234531 | PROCESS FOR AGGLOMERATION OF SUPERABSORBENT POLYMER FINE PARTICLES - Among other things, a process for producing an agglomerated superabsorbent polymer particle and an agglomerated superabsorbent polymer particle are disclosed. The process comprises the steps of:
| 09-16-2010 |
20100292405 | PARTIALLY HYDROLYZED CHLOROSULFONATED POLYOLEFIN ELASTOMERS - At least partially hydrolyzed chlorosulfonated polyolefin elastomers containing 0.5-10 weight percent chlorine and 0.25 to 5 weight percent sulfur are prepared from low density polyethylene or from linear ethylene/alpha-olefin copolymer base resins having a ratio of weight average molecular weight (Mw) to number average molecular weight (Mn) less than 3.5. | 11-18-2010 |
20100298499 | NOVEL LIVING RADICAL POLYMERIZATION METHOD USING A PHOSPHORUS COMPOUND OR NITROGEN COMPOUND AS A CATALYST - A highly active and environment-friendly catalyst for use in a living radical polymerization is provided. A catalyst for use in a living radical polymerization method is provided. The catalyst comprises a central element, which is selected from nitrogen and phosphorus, and at least one halogen atom, which is bound to the central element. A monomer having a radical reactive unsaturated bond is subjected to a radical polymerization reaction in the presence of the catalyst, thereby it is possible to obtain a polymer having narrow molecular weight distribution. The present invention has the merits such as low toxicity of the catalyst, a small amount of the catalyst being required, high solubility of the catalyst in the polymerization media, mild reaction conditions, no coloration, no odor (unnecessary post-treatment of molded products). The method of the present invention is more environment-friendly and economical than other living radical polymerization methods. | 11-25-2010 |
20110046310 | ORGANOPOLYSILMETHYLENE AND A COMPOSITION COMPRISING THE SAME - The present invention provides an organopolysilmethylene represented by the following general formula (1): | 02-24-2011 |
20130324667 | RUBBER COMPOSITION, PRODUCTION METHOD THEREFOR AND TIRE - Objects of the present invention are to provide a rubber composition that can obtain a rubber elastic body having small rolling resistance and excellent impact resilience and a method for producing the same, and to provide a tire having small rolling resistance and excellent impact resilience. The rubber composition of the present invention is obtained by kneading a conjugated diene polymer (A) having a group with bonding reactivity to silica only at one site of one molecule of the polymer, a polymer (B) having groups with bonding reactivity to silica at a plurality of sites of one molecule of the polymer, and a filler (C) containing silica. | 12-05-2013 |
20160017135 | METHODS FOR CROSSLINKING POLYMER COMPOSITIONS IN THE PRESENCE OF ATMOSPHERIC OXYGEN - A process for crosslinking an elastomer composition in the presence of an organic peroxide formulation is disclosed. The organic peroxide formulation may comprise additional compounds chosen from bis-, tri- and higher poly-maleimides, bis-, tri- and higher poly-citraconimides, peroxide-crosslinkable silicone elastomers, p-phenylenediamine based antiozonants, sulfur containing organic compounds which are accelerators for the sulfur curing (crosslinking) of polymers which are curable/crosslinkable by sulfur, and polysulfide polymers. Methods of manufacturing elastomer articles, methods of reducing mold-fouling, elastomer compositions, and elastomer articles made from the elastomer compositions are also disclosed. | 01-21-2016 |
20160090478 | Zinc Ionomer Rubber Activator - Curable rubber compositions and cured articles are based on the use of zinc activator compositions for the sulfur cure. Activator compositions contain zinc and a polymeric component having a plurality of COOH groups, at least some of which are neutralized with the zinc. With polymeric zinc activators, sulfur cure can be activated at levels of zinc below those used in conventional systems. | 03-31-2016 |
525193000 | Agent contains an ethylenic group | 18 |
20080300367 | Impact modification and functionalization of copolymers of olefins and dienes - Disclosed is the preparation of compositions which are mixtures of certain types of epoxidized rigid copolymers of α-olefins and diene-derived co-monomers in combination with elastomeric diene-based polymers or copolymers. These two types of rigid and elastomeric polymeric materials are placed in a common liquid reaction medium and contacted therein with an oxidizing agent. The oxidizing agent, which can be a peroxide or peracid, epoxidizes in-situ at least a portion of the residual double bonds of the rigid copolymer and preferably also introduces hydroxyl groups, e.g., diol moieties, (or derivatives thereof such as ester groups) onto the unsaturated moieties of the elastomeric diene-based polymers or copolymers. This combination of materials which has been oxidized in-situ can then be co-precipitated to form a polymeric mixture which can be melt-molded into polyolefin materials of improved structural, thermal and mechanical properties with desirable impact resistance. | 12-04-2008 |
20090124757 | METHOD OF MANUFACTURING A GOLF BALL - The present invention relates to an industrially beneficial method of manufacturing golf balls which includes the steps of pre-preparing a masterbatch of an unsaturated carboxylic acid and/or a metal salt thereof by mixing an unsaturated carboxylic acid and/or a metal salt thereof with a rubber material, preparing a rubber composition that contains the rubber material by using the masterbatch, and employing a material obtained by molding the rubber composition under heat as a golf ball component. The masterbatch is composed of: | 05-14-2009 |
20090124758 | GOLF BALL - The present invention relates to a golf ball having a ball component made of a material molded under heat from a rubber composition which includes; | 05-14-2009 |
20090264595 | Method of increasing the yield in producing SDVB-based copolymer in preparing standard turbidity/nephelometry test samples - A method of improving the yield in producing a unique styrene-divinylbenzene copolymer for use in an improved more highly diluted suspension for preparing standard turbidity test equipment calibration samples of very low turbidity levels in the measurement of turbidity in water. | 10-22-2009 |
20100004398 | POLYMERIC CORE-SHELL NANOPARTICLES WITH INTERPHASE REGION - A polymeric nanoparticle composition is provided. The nanoparticle may be of a core/shell configuration with an interphase region connecting the core and the shell. The mean average diameter of the polymer nanoparticles may be less than about 250 nm. The size, composition, and/or configuration of the interphase region may be varied to achieve desired physical and/or chemical properties of the resulting polymeric nanoparticles, and of the compositions into which the nanoparticles are compounded. | 01-07-2010 |
20100093937 | POLAR GROUP FUNCTIONALIZED CO-POLYMERS - The invention relates to a polar group functionalized copolymer useful to prepare a nanocomposite polymer and to the nanocomposite polymer, wherein the polar group functionalized copolymer useful to prepare a nanocomposite polymer and the nanocomposite polymer are as defined in the specification. | 04-15-2010 |
20110105690 | Method for Making Propylene Impact Copolymers with Balanced Impact Strength and Stiffness - Disclosed is a propylene impact copolymer comprising a first polypropylene having an MFR | 05-05-2011 |
20110112250 | MOISTURE CROSSLINKABLE POLYETHYLENE COMPOSITION - The present invention is a moisture crosslinkable composition. It may be (i) a blend of a nonpolar polyolefin and a second highly polar or amorphous polyolefin or (ii) a copolymer of a nonpolar polyolefin and the second polar or amorphous polyolefin. The present invention is useful for the preparation of moisture-cured wires, cables, film, pipe, hot melt adhesives, and other extruded or injection molded articles. The present invention is also useful in the preparation of media for fast transport of selective species, including film membranes. | 05-12-2011 |
20120029152 | FLUORINE-CONTAINING ELASTOMER MIXTURE, METHOD FOR PRODUCING SAME, COMPOSITION FOR VULCANIZING PEROXIDE, AND MOLDED ARTICLE - A fluoroelastomer mixture, including: a peroxide-vulcanizable fluoroelastomer (A) containing an iodine atom; and a peroxide-vulcanizable fluoroelastomer (B) containing an iodine atom. The fluoroelastomer (A) is a copolymer (a1) consisting of 50 to 85 mol % of a vinylidene fluoride unit and 15 to 50 mol % of a perfluoro(alkyl vinyl ether) unit, or a copolymer (a2) consisting of 45 to 85 mol % of a vinylidene fluoride unit, 1 to 30 mol % of a tetrafluoroethylene unit, and 14 to 30 mol % of a perfluoro(alkyl vinyl ether) unit. Further the fluoroelastomer (B) has a fluorine content of 70.0% or more. Also disclosed is a composition for peroxide vulcanization containing the above fluoroelastomer composition (i), a polyfunctional unsaturated compound (ii) and a peroxide (iii), as well as a method for producing the fluoroelastomer mixture. | 02-02-2012 |
20120157633 | PROCESS FOR MAKING A SATURATED DENDRITIC HYDROCARBON POLYMER - A process for making a substantially saturated dendritic hydrocarbon polymer. The process has the following steps: (a) polymerizing an amount of a first alkadiene monomer under anionic conditions in the presence of a first organic monolithium initiator to produce a linear polyalkadiene having a lithiated chain end; (b) reacting the linear polyalkadiene with an amount of a second organic monolithium initiator in the presence of tetramethylethylene diamine to form a multilithiated polyalkadiene; (c) reacting the multilithiated polyalkadiene with an amount of a second alkadiene monomer to form a branched polyalkadiene; (d) repeating steps (b) and (c) with the branched polyalkadiene one or more times to prepare a dendritic polyalkadiene; and (e) hydrogenating the dendritic polyalkadiene to form the substantially saturated dendritic hydrocarbon polymer. | 06-21-2012 |
20120264881 | HETEROTRIFUNCTIONAL MOLECULES AND METHODS FOR THE SYNTHESIS OF DENDRIMERIC MATERIALS - In one aspect, the present invention is directed to dendrimers comprised of macromolecules and trifunctional branches. In another aspect, the invention relates to methods for generating dendrimeric compositions comprising macromolecules and trifunctional branches. In certain embodiments, the radial density of the dendrimeric composition is controlled by selective incorporation of branches. | 10-18-2012 |
20120289659 | CROSS-LINKING RESIN COMPOSITION AND MIXTURE - This cross-linking resin composition containing polyethylene, polybutadiene and a Co-cross-linking agent containing a polyfunctional monomer having double bonds between carbons at two positions or more, and wherein the polyethylene, the polybutadiene and the cross-linking auxiliary agent are mixed and formed by being molded in a predetermined form, and wherein the cross-linking resin composition having a cross-linked region that is subjected to cross-linking reaction by ionizing radiation and a non-cross-linked region that is not subjected to the cross-linking reaction. | 11-15-2012 |
20130096260 | RUBBER COMPOSITION CONTAINING TREATED SILICA AND PRODUCTS WITH COMPONENT THEREOF - The invention relates to rubber compositions containing a treated silica, particularly sulfur cured rubber compositions, and articles of manufacture having a component thereof such as, for example tires. The invention particularly relates to synthetic amorphous silica, particularly a precipitated silica, treated with a combination of allylsilane and dialkylsilane. | 04-18-2013 |
20130096261 | Cross-Linked Polyolefin Composition - A cross-linked composition, obtained by cross-linking polyolefin composition comprising, all percentages being by weight:
| 04-18-2013 |
20130231443 | CHLOROPRENE RUBBER COMPOSITION, AND VULCANIZATES AND MOLDINGS THEREOF - To provide a chloroprene rubber composition that provides excellent low temperature characteristics such as low temperature permanent compression set and dynamic characteristics at low temperature and provides good permanent compression set, mechanical strength, and processing characteristics also at high temperature thus to achieve excellent characteristics within a wide temperature region, and a vulcanizate and a molding thereof. | 09-05-2013 |
20150315373 | COMPOSITION, THERMOPLASTIC VULCANIZATES MADE THEREFROM AND ARTICLES FORMED FROM THE SAME - A composition comprising at least the following (A) an ethylene/α-olefin copolymer; (B) an olefin-based polymer; (C) a crosslinking agent; and (D) a multifunctional acrylate coagent; wherein the ethylene/α-olefin copolymer of component A) has the following properties: (i) has a density from 0.855 to 0.875 g/cc; and (ii) a Mooney Viscosity (ML 1+4, 121° C.) from 10 to 100 is provided. | 11-05-2015 |
20160024289 | MODIFIED HETEROPHASIC POLYOLEFIN COMPOSITION - A heterophasic polymer composition comprises a propylene polymer phase, an ethylene polymer phase, and a compatibilizing agent. The compatibilizing agent comprises (i) an acyclic carbon-carbon double bond having a first carbon atom and a second carbon atom, (ii) an electron withdrawing group directly bonded to the first carbon atom in the acyclic carbon-carbon double bond, and (iii) a second carbon-carbon multiple bond in conjugation with the acyclic carbon-carbon double bond, wherein the second carbon-carbon multiple bond is linked to the acyclic carbon-carbon double bond through the second carbon atom. | 01-28-2016 |
20160376411 | FLUORORUBBER MOLDED ARTICLE - To provide a fluororubber molded article which is inexpensive and excellent in fuel barrier properties against an alcohol-containing fuel. A fluororubber molded article obtained by molding and crosslinking a cross-linkable composition comprising a fluoroelastomer (A) and a fluoroelastomer (B), wherein the fluoroelastomer (A) is a copolymer comprising tetrafluoroethylene units and perfluorovinyl ether units represented by CF | 12-29-2016 |
525194000 | Agent is an organic material | 35 |
20080221272 | Polymer Material Comprising Chains Bearing Imidazolidone Functions - The invention concerns a polymer material consisting of macromolecular chains bound by hydrogen bonds wherein: the macromolecular chains consist of a polymer skeleton whereon is fixed by at least one covalent bond a modifying agent, the modifying agent comprising, assembled in a common molecule, one or more associative groups capable of being bound by hydrogen bonds and one or more reactive groups capable of forming covalent bonds with the polymer skeleton, at least one of the associative groups of the modifying agent is an imidazolidone heterocycle, the macromolecular chains bear on average 1 to 10 imidazolidone groups per chain. The average number of imidazolidone groups to be introduced into the macromolecular chains depends both on the average mass of said chains and the final properties desired for the material. The inventive polymer material can be extruded, co-extruded, injected, blown, moulded, overmoulded, calandered, thermoformed. It can be used to produce articles such as tubes, films, plates, extruded strings, bottles, containers. The inventive polymer material can also be mixed with other materials such as other polymers, thus it is used for example as impact modifier or rheology regulator. The invention further concerns the use of said polymer material as compatibility agent in a composition comprising among others at least two polymers belonging to different classes of polymers. | 09-11-2008 |
20090023862 | SOLVENTBORNE THERMOSETTING COMPOSITIONS CONTAINING COPOLYMERS OF ISOBUTYLENE TYPE MONOMERS - The present invention is directed to a solventborne thermosetting composition comprising: | 01-22-2009 |
20090054593 | FLUOROELASTOMER COMPOSITION AND MOLDED FLUORORUBBER ARTICLE - To provide a fluoroelastomer composition which can give a molded fluororubber article excellent in heat resistance and compression set characteristics and in basic properties including tensile strength and tensile elongation, and which has excellent crosslinkabiity and satisfactory moldability, and is less susceptible to scorch. | 02-26-2009 |
20090137741 | THERMOPLASTIC ELASTOMER COMPOSITION, COMPOSITE MOLDED BODY AND WEATHER STRIP - The present invention provides a thermoplastic elastomer composition, a composite molded body and a weather strip. The thermoplastic elastomer composition comprises the following (i) and (ii): (i) a thermoplastic elastomer obtained by dynamically crosslinking (a), (b), (c) and (d) in the presence of a crosslinking agent,(a) 10 to 75% by weight of the ethylene-a-olefin copolymer rubber; (b) 10 to 50% by weight of a propylene resin; (c) 5 to 60% by weight of mineral oil; and (d) an ethylene resin; a total content of (a), (b) and (c) being 100% by weight, and a content of (d) being from 0 to 10 parts by weight, provided that the total content of (a), (b) and (C) is 100 parts by weight; (ii) a high density polyethylene; and a content of (ii) is from 55 to 150 parts by weight based on 100 parts by weight of (a) the ethylene-α-olefin copolymer rubber. | 05-28-2009 |
20090275703 | PROCESS FOR CROSS-LINKING COPOLYMERS USING A SULFUR-CONTAINING CO-AGENT - Process for cross-linking ethylene-α-olefin copolymers comprising the step of combining the copolymer with (a) an initiator capable of generating free radicals and (b) a sulfur-containing co-agent according to formula R—Y—S | 11-05-2009 |
20100029852 | PROCESS AND APPARATUS FOR THE PREPARATION OF CROSSLINKABLE RUBBER MIXTURES - The invention relates to a process and an apparatus for the preparation of a crosslinkable rubber mixture for vehicle tyres, lines, drive belts and other industrial rubber articles, which can be carried out at least semicontinuously. | 02-04-2010 |
20100267899 | THERMOPLASTIC ELASTOMER COMPOSITION AND PRODUCTION PROCESS - A thermoplastic elastomer composition which has excellent cleanability and is suitable for use as a medical rubber supply. It is characterized by comprising a rubber ingredient dynamically crosslinked with a crosslinking agent and a matrix which comprises a thermoplastic resin and in which the crosslinked rubber ingredient has been dispersed, the crosslinking agent comprising a triazine derivative. | 10-21-2010 |
20100311908 | Fluororubber Composition and Crosslinked Fluororubber Product - Object: To provide fluororubber compositions and crosslinked fluororubber products that are suitable for use as rotary shaft seals, in which each of the initial characteristics, i.e., torque reduction (reduced friction) and sealing properties attributed to reduced oil leakage (oil pump rate when the seal member slides), can be improved, and degradation of these characteristics can be inhibited even after frictional abrasion. | 12-09-2010 |
20110086983 | THERMOPLASTIC POLYMER COMPOSITION AND PROCESS FOR PREPARING THERMOPLASTIC POLYMER COMPOSITION - The object of the present invention is to provide a thermoplastic polymer composition which is flexible and capable of melt-molding and has excellent heat resistance, chemical resistance and oil resistance. Another object of the present invention is to provide a molded article, a laminated article, a hose for industrial use, a tube for industrial use, a fuel hose and a fuel tube comprising the thermoplastic polymer composition. Further object of the present invention is to provide a process for preparing a thermoplastic polymer composition. The thermoplastic polymer composition comprises a fluororesin (A) comprising a fluorine-containing ethylenic polymer (a) and a crosslinked fluororubber (B) in which at least a part of at least one kind of fluororubber (b) is crosslinked, and a weight ratio of the fluororesin (A) to the crosslinked fluororubber (B) is 85/15 to 40/60, a fuel permeation coefficient of a molded article obtained from the composition is not more than 40 g·mm/m | 04-14-2011 |
20110160402 | Process for Forming Thermoplastic Vulcanizates - Provided are methods for producing a thermoplastic vulcanizate. One method includes charging vulcanizable rubber to a reactor; charging a masterbatch of thermoplastic resin and a catalyst for a phenolic resin curative to the reactor; charging a phenolic resin curative to the reactor; and dynamically vulcanizing the rubber with the phenolic resin curative in the presence of the catalyst. Also provided are thermoplastic vulcanizates made by the methods of the invention. | 06-30-2011 |
20110178248 | CROSSLINKABLE ACRYLATE ADHESIVE POLYMER COMPOSITION - A pre-adhesive syrup copolymer composition comprising an acid functional acrylate solute copolymer, a monomer solvent mixture, and a polyaziridine crosslinking agent is disclosed. | 07-21-2011 |
20110245425 | POLYPROPYLENE RESIN COMPOSITIONS HAVING HIGH MELT TENSION AND METHOD FOR PREPARING THE SAME - Disclosed herein are a polypropylene resin composition having excellent melt tension and a method for preparing the same. More particularly, a high melt tension polypropylene resin composition prepared by stepwise reaction of existing polypropylene resin with at least two organic peroxides having different half-life distributions, as well as a method for preparation thereof are described. | 10-06-2011 |
20110319566 | SHEET FOR SOLAR CELL ENCAPSULANT AND SOLAR CELL MODULE - Provided is a sheet for a solar cell encapsulant containing (A) an ethylene-based polymer having a melting point of 90° C. or higher and containing an ethylene-derived constituent unit as a main component; (B) an ethylene-vinyl acetate copolymer having a vinyl acetate-derived constituent unit at a content ratio of from 19% to 40% by mass; and (C) a silane coupling agent having an amino group. The sheet for solar cell encapsulant has the excellent transparency and flexibility possessed by an ethylene-vinyl acetate copolymer. Furthermore, a crosslinking treatment is substantially unnecessary, and adhesiveness and adhesion stability that are appropriate for practical use are obtained. | 12-29-2011 |
20120022217 | PROCESS FOR MANUFACTURING COMPOSITION OF SOLVOLYSIS PRODUCT OF ETHYLENE-VINYL ESTER COPOLYMER - Processes for manufacturing a composition of a solvolysis product of an ethylene-vinyl ester copolymer, which comprises: conducting solvolysis of an ethylene-vinyl ester copolymer (A′) and a modified ethylene-vinyl ester copolymer (B′) comprising a unit derived from a compound represented by the general formula (2) in one system to manufacture the composition of a solvolysis product of an ethylene-vinyl ester copolymer comprising a solvolysis product (A) of the ethylene-vinyl ester copolymer and a solvolysis product (B) of the modified ethylene-vinyl ester copolymer comprising a unit represented by the general formula (1), wherein a ratio of an ethylene content (B′)/(A′) of copolymer (A′) and copolymer (B′) in conducting solvolysis is 1 or more, and a blending ratio (B′)/(A′) of the ethylene-vinyl ester copolymer (A′) and the modified ethylene-vinyl ester copolymer (B′) is from 50/50 to 1/99 by weight: | 01-26-2012 |
20120029153 | ADHESIVE AND MANUFACTURING METHOD THEREOF - An adhesive and a manufacture method thereof are provided. The adhesive is made by crosslinking a first polymer with a second polymer. The glass transition temperature of the first polymer is higher than the glass transition temperature of the second polymer. The first polymer and the second polymer are miscible in each other. | 02-02-2012 |
20120149845 | POLYPROPYLENE RESIN COMPOSITIONS HAVING HIGH MELT TENSION AND METHOD FOR PREPARING THE SAME - Disclosed herein are a polypropylene resin composition having excellent melt tension and a method for preparing the same. More particularly, a high melt tension polypropylene resin composition prepared by stepwise reaction of existing polypropylene resin with at least two organic peroxides having different half-life distributions, as well as a method for preparation thereof are described. | 06-14-2012 |
20120283390 | HIGH MELT STRENGTH POLYETHYLENE COMPOSITIONS AND METHODS FOR MAKING THE SAME - The present invention is a method for increasing the melt strength of a polyethylene resin comprising reacting the polyethylene resin with a free radical generator with a decomposition energy in between −50 kJoule/mole and −250 kJoules/mole and a peak decomposition temperature of less than 280 degree C. The resulting resin has increased melt strength with higher ratio of elongational viscosities at 0.1 to 100 rad/s when compared to substantially similar polyethylene resins which have not been reacted with a free radical generator such as an alkoxy amine derivative. | 11-08-2012 |
20130059978 | THERMOPLASTIC ELASTOMER COMPOSITION - Disclosed is a thermoplastic elastomer composition that will provide little load on the environment and has superior mechanical characteristics, the composition being obtained by melt-kneading 10 to 90 parts of ethylene-α-olefin based copolymer rubber (A), 1 to 50 parts of non-petroleum source-derived thermoplastic resin (B), 1 to 50 parts of modified propylene-based copolymer (C), 1 to 50 parts of propylene-based polymer (D), 0.001 to 5 parts of crosslinking agent (E), and 0 to 50 parts of mineral oil-based softening agent (F), wherein the amounts of components (A), (B), (C), (D), and (F) are amounts in weight calculated where the combined amount of components (A), (B), (C), (D) and (F) is considered to be 100 parts by weight, and the amount of component (E) is an amount in weight calculated where the combined amount of components (A), (B), (C), (D), and (F) is considered to be 100 parts by weight. | 03-07-2013 |
20130059979 | Process for Forming Polymer Blends - A method for forming a fiber, the method comprising charging to a reactive extruder a first polymer and a second polymer to form an initial blend, where the first polymer is a propylene-based elastomer including up to 35% by weight ethylene-derived units and a heat of fusion, as determined according to DSC procedures according to ASTM E-793, of less than 80 J/g and a melt temperature of less than 110° C., where the second polymer is a propylene-based polymer having a melt temperature in excess of 110° C. and a heat of fusion in excess of 80 J/g, and introducing the reactive blend to a spinneret to form a fiber or extruding the reacted blend through a plurality of die capillaries to form molten threads or filaments which are attenuated in a gas stream to form meltblown fibers. | 03-07-2013 |
20130211007 | FLUORINE-CONTAINING ELASTOMER BLEND - Provided is a fluorine-containing elastomer blend comprising 5 to 60 wt. % of a high-molecular-weight, fluorine-containing elastomer having a number average molecular weight of 3,000,000 or more, 20 to 80 wt. % of a medium-molecular-weight, fluorine-containing elastomer having a number average molecular weight of 100,000 to 1,000,000, and 10 to 50 wt. % of a low-molecular-weight, fluorine-containing elastomer having a number average molecular weight of 7,000 to 13,000; the number average molecular weight Mn of each fluorine-containing elastomer being measured by liquid chromatography using tetrahydrofuran as a developing solvent at a polymer concentration of 0.5 wt. % at a measurement temperature of 35° C. The fluorine-containing elastomer blend can achieve low hardness and low modulus while improving roll processability. | 08-15-2013 |
20140179871 | ZINC IONOMER RUBBER ACTIVATOR - Curable rubber compositions and cured articles are based on the use of zinc activator compositions for the sulfur cure. Activator compositions contain zinc and a polymeric component having a plurality of COOH groups, at least some of which are neutralized with the zinc. With polymeric zinc activators, sulfur cure can be activated at levels of zinc below those used in conventional systems. | 06-26-2014 |
20150094427 | METHOD OF PREPARING SUPER ABSORBENT POLYMER - The present invention relates to a method of preparing a super absorbent polymer (SAP). The preparation method for SAP according to the present invention includes: preparing a first polymer by carrying out a thermal polymerization or photo polymerization of a monomer composition comprising a water-soluble ethylene-based unsaturated monomer and a polymerization initiator; preparing a second polymer by carrying out a thermal polymerization or photo polymerization of a monomer composition comprising a water-soluble ethylene-based unsaturated monomer and a polymerization initiator; drying the first polymer; milling the dried first polymer; and mixing the milled first polymer with the second polymer in the free swelling state using the crosslinking solution to cause a crosslinking reaction of the first and second polymers. According to the present invention, it is possible to obtain a super absorbent polymer (SAP) having high centrifuge retention capacity and high absorption under pressure. | 04-02-2015 |
20160087130 | COMPOSITION FOR SOLAR CELL SEALING FILM, METHOD FOR PRODUCING SAME AND SOLAR CELL SEALING FILM - The present invention provides a composition for a solar cell sealing film prepared by mixing an ethylene-α-olefin copolymer (m-LLDPE) polymerized using a metallocene catalyst and other polymers as resin components, wherein the composition has the same processability as a composition containing m-LLDPE alone and provides a solar cell sealing film having the same transparency as the case where m-LLDPE is used alone. A composition for a solar cell sealing film comprising m-LLDPE and low-density polyethylene (LDPE), wherein the weight average molecular weight of m-LLDPE (M | 03-24-2016 |
525195000 | Contains a metal atom | 12 |
20090111944 | PSEUDO-BLOCK COPOLYMERS AND PROCESS EMPLOYING CHAIN SHUTTLING AGENT - A process for the polymerization of one or more addition polymerizable monomers to form a copolymer comprising multiple regions or segments of differentiated polymer composition or properties comprising contacting an addition polymerizable monomer or mixture of monomers under addition polymerization conditions with a composition comprising at least one olefin polymerization catalyst, a cocatalyst and a chain shuttling agent, said process being characterized by formation of at least some of the growing polymer chains under differentiated process conditions such that two or more blocks or segments formed within at least some of the resulting polymer are chemically or physically distinguishable. | 04-30-2009 |
20090192269 | Thermoformable and toughened polyester - Disclosed is a composition comprising or produced from poly(trimethylene terephthalate), an ionomer of an ethylene acid copolymer comprising copolymerized units of at least one α,β-ethylenically unsaturated carboxylic acid comonomer, a nucleating agent and optionally an ethylene ester copolymer. Also disclosed are articles prepared from the composition. Also disclosed is a process for preparing the compositions, including methods for controlling the melt viscosity and strain hardening of the compositions. | 07-30-2009 |
20090264596 | FLUOROELASTOMER COMPOSITIONS - Fluoropolymers comprising a fluoroelastomer matrix incorporating therein particles of a semicrystalline fluoropolymer formed of tetrafluoroethylene (TFE) homopolymers or copolymers, wherein the average particle sizes of the semicrystalline fluoropolymer latex range from 10 to 100 nm. | 10-22-2009 |
20100105839 | Polyethylene having faster crystallization rate and improved environmental stress cracking resistance - Disclosed is a polyethylene composition having faster crystallization rate and improved environmental stress cracking resistance. The polyethylene composition comprises a multimodal polyethylene and a nucleating agent. The multimodal polyethylene comprises from 25 to 50 wt % of a low molecular weight ethylene homopolymer component, from 25 to 50 wt % of a medium molecular weight ethylene copolymer component and from 25 to 50 wt % of a high molecular weight ethylene copolymer component. The polyethylene composition has an environmental stress cracking resistance (ASTM D1693, Condition B in 100% Igepal) greater than or equal to 40 days and a crystallization half time less than or equal to 70% of the crystallization half time of the multimodal polyethylene without nucleating agent. | 04-29-2010 |
20100222513 | PRODUCTION OF METATHESIS PRODUCTS BY AMORPHOUS POLYMER SEGMENT INERCHANGE - A cross-metathesized product mixture is prepared by contacting a metathesis catalyst under metathesis conditions with a composition comprising two or more chemically distinguishable ethylenically unsaturated polymers, at least one of said ethylenically unsaturated polymers (first polymer) having from 0.001 to 50 mole percent unsaturation and at least one other of said ethylenically unsaturated polymers (second polymer) being an amorphous polymer having a Tg less than 0° C. and having from 0.001 to 5 mole percent unsaturation. | 09-02-2010 |
20110054122 | CATALYST AND PROCESS FOR POLYMERIZING AN OLEFIN AND POLYOLEFIN PREPARED THEREBY - The present invention generally relates to a catalyst and process for polymerizing an olefin and to a polyolefin prepared by the process. | 03-03-2011 |
20110269909 | MANUFACTURE OF PERFLUOROELASTOMER COMPOUNDS CONTAINING FIBRILLATING PTFE - Curable perfluoroelastomer compounds are prepared by mixing a composition comprising perfluoroelastomer, 1-20 phr fibrillating PTFE, and curative for a time M | 11-03-2011 |
20120108752 | Polyethylene Moulding Composition - A novel polyethylene composition is described. The composition is suitable for manufacturing especially stretched bands or tapes, also coined raffia in the art. | 05-03-2012 |
20120245293 | Block Copolymers from Silylated Vinyl Terminated Macromers - This invention relates to a process to functionalize polyolefins comprising contacting a metallocene catalyst with a difunctional diblock hydrosilane, and one or more vinyl terminated polyolefins. This invention further relates to the diblock hydrosilane-functionalized polyolefins produced thereby. | 09-27-2012 |
20130303700 | BLENDS OF PARTIALLY HYDROGENATED NITRILE RUBBER AND SILICONE RUBBER, VULCANIZABLE MIXTURES AND VULCANIZATES BASED THEREON - Novel rubber blends based on partly hydrogenated nitrile rubber and silicone rubber containing vinyl groups are provided, these being produced by a metathesis reaction in the presence of suitable catalysts, as are vulcanizable mixtures and vulcanizates based thereon, and the corresponding production processes. | 11-14-2013 |
20140121325 | Propylene Copolymer Compositions and Processes to Produce Them - This invention relates to a process for producing propylene-based in-reactor compositions comprising: (a) contacting propylene and from about 0 wt % to 10 wt % C | 05-01-2014 |
20160115306 | Polyolefin Adhesive Compositions and Methods of Preparing the Same - A blended multimodal polymer product is disclosed that comprises a first polymer, wherein the first polymer is a homopolymer of propylene or a propylene copolymer having an ethylene or a C | 04-28-2016 |
525196000 | Agent contains a metal atom | 6 |
20090326153 | COMPATIBILIZING AGENT FOR POLYMER ALLOY, POLYMER ALLOY, AND MASTER BATCH FOR PREPARATION OF POLYMER ALLOY - Disclosed are: a compatibilizing agent for a polymer alloy, which can increase the compatibility with a variety of polymers; a polymer alloy using the compatibilizing agent; and master batch for a polymer alloy. Specifically disclosed is a compatibilizing agent which is used for the preparation of a polymer alloy by blending at least one polymer (A) selected from the group consisting of a polyphenylene sulfide, a polyphenylene ether and a polyamide with a polymer (B) of a different type from the polymer (A) at such a ratio that the amount of the polymer (A) blended is the same as or more than that of the polymer (B). The compatibilizing agent comprises a nanosheet-shaped layered titanic acid which is produced by intercalate an organic basic compound between the layers of a layered titanic acid. | 12-31-2009 |
20100324221 | ANTISTATIC ACRYLIC FIBER AND A METHOD FOR MANUFACTURING THE SAME - The present invention is an antistatic acrylic fiber which comprises 90 to 99% by weight of acrylonitrile polymer containing 80 to 100% by weight of acrylonitrile as a constituting component and 10 to 1% by weight of acrylic antistatic resin containing 10 to 70% by weight of acrylonitrile as a constituting component, characterized in that alkali metal ion is contained in an amount of not less than 150 ppm to the fiber. The acrylic fiber of the present invention has antistatic property which does not lower so much even if the fiber is subjected to a spinning and dyeing step. | 12-23-2010 |
20110060107 | PREPARATION OF FUNCTIONAL POLYMERS - The process of the present invention is directed toward conducting highly selective, high yield post polymerization reactions on polymers to prepare functionalized polymers. An embodiment of the present invention comprises conducting click chemistry reactions on polymers. Preferably, the polymers were prepared by controlled polymerization processes. Therefore, embodiments of the present invention comprise processes for the preparation of polymers comprising conducting a click chemistry reaction on a functional group attached to a polymer, wherein the polymer has a molecular weight distribution of less than 2.0. The functional polymers may be prepared by converting an attached functional unit on the polymer thereby providing site specific functional materials, site specific functional materials comprising additional functionality, or chain extended functional materials. | 03-10-2011 |
20110130519 | STYRENE-BASED RESIN-CONTAINING COMPOSITION AND FORMED ARTICLE - Provided is a styrene-based resin-containing composition including (A) a polymer saponified product which is obtained by saponifying an ethylene-unsaturated carboxylic acid ester copolymer with potassium and has a potassium ion concentration in the range of 0.1 to 5.8 mol/kg, in an amount of 2 parts by mass or more and less than 100 parts by mass, and (B) a styrene-based resin, in an amount of more than 0 parts by mass and 98 parts by mass or less, the composition having a potassium ion concentration of 0.002 to 5.8 mol/kg. | 06-02-2011 |
20120035325 | Thermoplastic Elastomeric Compositions - A dynamically vulcanized alloy contains at least one isobutylene-containing elastomer and at least one thermoplastic resin, wherein the elastomer is present as a dispersed phase of small particles in a continuous phase of the thermoplastic resin. The elastomer in the alloy is cured by means of a cure system comprising an increased amount of curative and preferably with no cure accelerators present in the cure system. The elastomer obtains at least seventy five percent cure in not more than 15 minutes at temperatures 220° C. or greater. | 02-09-2012 |
20140045997 | OLEFIN METATHESIS FOR EFFECTIVE POLYMER HEALING VIA DYNAMIC EXCHANGE OF STRONG CARBON-CARBON BONDS - A method of preparing a malleable and/or self-healing polymeric or composite material is provided. The method includes providing a polymeric or composite material comprising at least one alkene-containing polymer, combining the polymer with at least one homogeneous or heterogeneous transition metal olefin metathesis catalyst to form a polymeric or composite material, and performing an olefin metathesis reaction on the polymer so as to form reversible carbon-carbon double bonds in the polymer. Also provided is a method of healing a fractured surface of a polymeric material. The method includes bringing a fractured surface of a first polymeric material into contact with a second polymeric material, and performing an olefin metathesis reaction in the presence of a transition metal olefin metathesis catalyst such that the first polymeric material forms reversible carbon-carbon double bonds with the second polymeric material. Compositions comprising malleable and/or self-healing polymeric or composite material are also provided. | 02-13-2014 |