Class / Patent application number | Description | Number of patent applications / Date published |
526352000 | From ethylene only | 62 |
20080287634 | Heterogeneous, Compositionally Phase Separated, Ethylene Alphaolefin Interpolymers - The present invention pertains to a heterogeneous ethylene/αolefin copolymer having a relatively high melt index range (I | 11-20-2008 |
20090012251 | Process for making a monofilament-like product - The invention relates to a process for making a monofilament-like product from a precursor containing at least one strand of fibres made from ultra-high molar mass polyethylene, comprising a) exposing the precursor to a temperature within the melting point range of the polyethylene for a time sufficient to at least partly fuse adjacent fibres and b) simultaneously stretching the precursor, wherein the precursor is mechanically compressed during fusing. The monofilament-like product thus made has a smoother surface appearance, and improved abrasion resistance, for example a reduced tendency to pilling during use as fishing line, than known similar products; making it very suitable for use as fishing line and the like. The invention further relates to a monofilament-like product obtainable by said process, and to semi-finished and end-use products comprising said monofilament-like product. | 01-08-2009 |
20090105439 | Sequentially cross-linked polyethylene - A method of producing an improved polyethylene, especially an ultra-high molecular weight polyethylene utilizes a sequential irradiation and annealing process to form a highly cross-linked polyethylene material. The use of sequential irradiation followed by sequential annealing after each irradiation allows each dose of irradiation in the series of doses to be relatively low while achieving a total dose which is sufficiently high to cross-link the material. The process may either be applied to a preformed material such as a rod or bar or sheet made from polyethylene resin or may be applied to a finished polyethylene part. If applied to a finished polyethylene part, the irradiation and annealing must be accomplished with the polyethylene material not in contact with oxygen at a concentration greater than 1% oxygen volume by volume. When applied to a preform, such as a rod, the annealing of the bulk polymer part of the rod from which the finished part is made must take place on the rod before the implant is machined therefrom and exposed to oxygen. | 04-23-2009 |
20090221782 | Conductive Polyolefins with Good Mechanical Properties - Processes for preparing reinforced polymeric material and the materials formed therefrom are discussed herein. The processes generally include providing a polymeric matrix, providing single-wall carbon nanotubes (SWNT) or multiple-wall carbon nanotubes (MWNT), purifying by the nanotubes in a single step of dissolving a support and catalyst particles with an agent appropriate to the nature of the support to form a purified support, functionalising the purified support by reaction with an alkylamine to form a functionalized support, dispersing the nanotubes in the polymeric matrix by mixing in the molten state to form a mixture and optionally orienting the mixture by stretching. | 09-03-2009 |
20090253882 | Melt-processible, wear resistant polyethylene - Melt-processible, thermoplastic polyethylene compositions of high resistance against wear are disclosed and methods for making and processing same. Additionally, products comprising these compositions are described. | 10-08-2009 |
20090306324 | Polyethylene molding compositions for injection molding applications - Monomodal molding compositions based on polymers of ethylene, wherein the density of the molding compositions is in the range from 0.940 to 0.96 g/cm | 12-10-2009 |
20090318654 | SINTERING ULTRAHIGH MOLECULAR WEIGHT POLYETHYLENE - Ultrahigh molecular weight polyethylene compositions of highly beneficial sintering characteristics are disclosed and methods for making and processing time. Additionally, products comprising these compositions are described. | 12-24-2009 |
20100004420 | PROCESS FOR PREPARING A POLYMER POWDER EXTRACT - The present invention relates to a process for preparing a polymer powder extract from a mixture of a polymer powder and a first particulate material. | 01-07-2010 |
20100010186 | High Strength Polyethylene Fiber - The present invention provides a high strength polyethylene fiber having an intrinsic viscosity of from about 5 dL/g to 40 dL/g, and containing carbon nanofiber modified with alkyl chains. The fiber obtained by the production method of a high strength polyethylene fiber of the present invention is industrially applicable to a wide range and greatly contributes to the industry. | 01-14-2010 |
20100022736 | Apparatus for the Production of Polyethylene and Ethylene Copolymers - The invention provides an apparatus and a process for the high pressure polymerization of ethylene, optionally with one or more comonomers, in which unreacted monomer is separated from the polymer in a separation system having at least first, second and third separation vessels and in which off gas from the second vessel is recombined back into the product mixture upstream of the first separation vessel, preferably using a jet pump. | 01-28-2010 |
20100029883 | POLYMER - A multimodal medium density polyethylene polymer obtainable using single site catalysis which comprises at least: | 02-04-2010 |
20100029884 | FIBER REINFORCEMENT WITH 1-SILACYCLOBUTANE CROSSLINK UNITS - Disclosed herein is a composition having a plurality of particles of a filler material and crosslinking units having the formula —(SiR—CH | 02-04-2010 |
20100069596 | MICROPOROUS POLYOLEFIN MEMBRANE, ITS PRODUCTION METHOD, BATTERY SEPARATOR AND BATTERY - A microporous polyolefin membrane comprising a polyethylene resin, and having (a) a shutdown temperature of 135° C. or lower, at which the air permeability measured while heating at a temperature-elevating speed of 5° C./minute reaches 1×10 | 03-18-2010 |
20100197881 | SEQUENTIALLY CROSS-LINKED POLYETHYLENE - A method of producing an improved polyethylene, especially an ultra-high molecular weight polyethylene utilizes a sequential irradiation and annealing process to form a highly cross-linked polyethylene material. The use of sequential irradiation followed by sequential annealing after each irradiation allows each dose of irradiation in the series of doses to be relatively low while achieving a total dose which is sufficiently high to cross-link the material. The process may either be applied to a preformed material such as a rod or bar or sheet made from polyethylene resin or may be applied to a finished polyethylene part. If applied to a finished polyethylene part, the irradiation and annealing must be accomplished with the polyethylene material not in contact with oxygen at a concentration greater than 1% oxygen volume by volume. When applied to a preform, such as a rod, the annealing of the bulk polymer part of the rod from which the finished part is made must take place on the rod before the implant is machined therefrom and exposed to oxygen. | 08-05-2010 |
20100204427 | 10-50 G/D HIGH STRENGTH POLYETHYLENE FIBER AND PREPARATION METHOD THEREOF - A 10-50 g/d high strength polyethylene fiber and preparation method thereof are provided, which are in the high molecular material field. Said fiber is obtained by cross blend melt spinning method, and its strength is 10-50 g/d, its modulus is 400-2000 g/d. The material used by said cross blend melt spinning method is obtained by mixing low density polyethylene with molecular weight of 2/5-500,000 and super molecule weight polyethylene with molecular weight of 120-7000,000 in the proportion of 2-10:1. Flow modifier or diluent is not additionally added in the present invention, raw material consumption is low, extra high pressure is avoided, energy consumption and cost of production are low, technological process is simple, single line capacity is easily raised, and large scale industrial production can be realized. | 08-12-2010 |
20100249355 | METHODS FOR MAKING POLYOLEFINS - A method for making a polyolefin composition according to one embodiment includes altering the concentration of the chain transfer agent present in the reactor to control the HMW and LMW fractions of the polyolefin composition. | 09-30-2010 |
20110028671 | PROCESS FOR PRODUCING HIGH STRENGTH POLYETHYLENE FILM - Process for producing high strength polyethylene films or tapes comprising the steps of: providing a quantity of disentangled polyethylene, applying a pressure of at least 20 bar to the quantity of disentangled polyethylene and a temperature between the α-relaxation temperature and the melting temperature of the disentangled polyethylene T | 02-03-2011 |
20110124835 | METHOD FOR MANUFACTURING HIGH MOLECULAR WEIGHT POLYETHYLENE FIBERS - A process for manufacturing high molecular weight polyethylene fibers, including subjecting a polyethylene tape with a weight average molecular weight of at least 500,000 grams/mole, a Mw/Mn ratio of at most 6, and a 200/110 uniplanar orientation parameter of at least 3 to a force in the direction of the thickness of the tape over the entire width of the tape. A polyethylene fiber having a Mw of at least 500 000 gram/mole, a Mw/Mn ratio of at most 6, and a 020 uniplanar orientation value of at most 55°. | 05-26-2011 |
20110166313 | POLYMER STREAM TRANSFER - A process for heating a polymer-containing stream being transferred from a polymerization reactor to a separation zone or device is described, comprising passing the stream through a heater comprising at least one transfer line for the stream and means for heating the transfer line, wherein the average particle size of the solid polymer is less than 3 mm, the mass flowrate of the polymer-containing stream exiting the heater is no more than 15% greater than the mass flowrate exiting the reactor, and the average velocity of the polymer-containing stream at 80% along the length of the heated part of the transfer line measured from the transfer line inlet is at least 6 m/s, preferably at least 8 m/s and more preferably at least 10 m/s and the pressure drop across the transfer line is between 0.01 bar/m and 0.2 bar/m. | 07-07-2011 |
20110166314 | ETHYLENE-BASED RESIN AND FILM - The purpose of the invention is to provide an ethylene-based resin having a transparency enhanced without excessively lowering an impact strength, which a linear low-density polyethylene has. There is provided an ethylene-based resin satisfying all of the following conditions:
| 07-07-2011 |
20110178262 | METHOD FOR IMPROVING THE BUBBLE STABILITY OF A POLYETHYLENE COMPOSITION SUITABLE FOR BLOWN FILM EXTRUSION PROCESS - The instant invention provides a method for improving the bubble stability of a polyethylene composition suitable for blown film extrusion process. The method for improving the bubble stability of a polyethylene composition suitable for blown film extrusion process comprises the steps of: (1) providing a polyethylene composition having a density in the range of 0.900 g/cm | 07-21-2011 |
20110207907 | GEL SPUN POLYETHYLENE FIBER - The invention relates to a gel-spinning process for producing UHMWPE fibers, said process comprising the steps of a) feeding a slurry containing UHMWPE and a spinning solvent to an extruder; b) converting the slurry in the extruder into a solution of UHMWPE in the spinning solvent; c) spinning fluid UHMWPE fibers by passing the solution of step b) through a spinning plate containing a plurality of spin holes; d) cooling the fluid UHMWPE fibers to form gel UHMWPE fibers; e) removing at least partly the spinning solvent from the gel UHMWPE fibers; and f) drawing the UHMWPE fibers in at least one drawing step before, during and/or after removing the spin solvent characterised in that the spinning plate having at most 6 spin holes per cm | 08-25-2011 |
20110251368 | Method and apparatus for processing of plastic material - The invention relates to an apparatus and a method for the processing of plastic material, with a receptacle or cutter-compactor ( | 10-13-2011 |
20110319585 | METHOD FOR PRODUCING ULTRAHIGH MOLECULAR WEIGHT POLYETHYLENE FILM - Disclosed is a method for producing a ultra high molecular weight polyethylene film, which comprises: a step of forming a film using a ultra high molecular weight polyethylene material; a step of biaxially drawing the film obtained in the step in the x-axis direction and in the y-axis direction at a temperature not less than the melting point of the ultra high molecular weight polyethylene material; and the step of shrinking the film along at least one of the x-axis direction and y-axis direction. By this method, a ultra high molecular weight polyethylene film having high tensile strength at break, high tear strength and excellent uniformity can be efficiently produced at low cost. | 12-29-2011 |
20120016099 | METHOD OF MANUFACTURING ARTIFICIAL SNOW - A method of manufacturing artificial snow including the steps; a) feeding a bulk material into a first apparatus; b) reducing the particle size of the bulk material in the first apparatus to produce a product; c) sieving the product produced at step b); and d) collecting the product produced at step c) for use as artificial snow. | 01-19-2012 |
20120029160 | SEQUENTIALLY CROSS-LINKED POLYETHYLENE - A method of producing an improved polyethylene, especially an ultra-high molecular weight polyethylene utilizes a sequential irradiation and annealing process to form a highly cross-linked polyethylene material. The use of sequential irradiation followed by sequential annealing after each irradiation allows each dose of irradiation in the series of doses to be relatively low while achieving a total dose which is sufficiently high to cross-link the material. The process may either be applied to a preformed material such as a rod or bar or sheet made from polyethylene resin or may be applied to a finished polyethylene part. | 02-02-2012 |
20120071621 | METHOD AND DEVICE FOR PRODUCING A POLYMER TAPE - The invention relates to a method for producing a highly oriented, high molecular weight polymer tape. The method comprises: a) forming a non-fibrous polymeric sheet; ( | 03-22-2012 |
20120095181 | Ethylene Separation - A polyethylene production process, comprising contacting ethylene and a polymerization catalyst under suitable reaction conditions to yield a polymerization product stream, separating a light gas stream from the polymerization product stream, wherein the light gas stream comprises ethane and unreacted ethylene, contacting the light gas stream with an absorption solvent system, wherein at least a portion of the ethylene from the light gas stream is absorbed by the absorption solvent system, removing unabsorbed gases of the light gas stream from contact with the absorption solvent system to form a waste gas stream, and recovering ethylene from the absorption solvent system. | 04-19-2012 |
20120172565 | PROCESS FOR PRODUCING HIGH STRENGTH POLYETHYLENE FILM - Antiballistic or composite products include high strength polyethylene films or tapes produced in a process including the steps of
| 07-05-2012 |
20120178892 | Angular Extrusion For Polymer Consolidation - Angular extrusion (AE) methods for creating monolithic polymers with high entanglement density, but small crystallite size, are disclosed. The methods involve consolidating granular polymer in an extrusion channel having at least one strain-imposing feature. | 07-12-2012 |
20120220747 | BIMODAL POLYETHYLENE COMPOSITIONS FOR BLOW MOLDING APPLICATIONS - Bimodal polyethylene compositions and methods for making the same are provided. In at least one specific embodiment, the bimodal polyethylene composition can include a high molecular weight component having a weight average molecular weight (Mw) of from about 400,000 to about 950,000. The bimodal polyethylene composition can also include a low molecular weight component having a weight average molecular weight (Mw) of from about 3,000 to about 100,000. The high molecular weight component can be present in an amount ranging from about 25 wt % to about 40 wt % of the bimodal polyethylene composition. The bimodal polyethylene composition can also have a percent die swell of less than about 80%. | 08-30-2012 |
20120259085 | POLYMER POWDER STORAGE AND/OR TRANSPORT AND/OR DEGASSING VESSELS - The present invention relates to a polymer powder vessel, preferably a polymer powder storage and/or transport and/or degassing vessel. | 10-11-2012 |
20120277393 | Methods of Mechanically Deforming Materials - Methods of mechanically deforming a material are disclosed. The methods of mechanically deforming a material involve using forming members that are moving at different surface speeds relative to each other to form deformed web materials. | 11-01-2012 |
20130005931 | ETHYLENIC POLYMER - Disclosed is an ethylenic polymer having a long characteristic relaxation time. The ethylenic polymer satisfies the following requirements:
| 01-03-2013 |
20130079483 | HIGH MOLECULAR WEIGHT POLYETHYLENE FIBERS AND MEMBRANES, THEIR PRODUCTION AND USE - In a process for producing an elongated polyethylene component, such as a fiber or membrane, polyethylene powder having a molecular weight of at least 3×10 | 03-28-2013 |
20130144024 | System and Method for Selective Trimerization - Disclosed herein is a method for separating from the reactor effluent of an olefin oligomerization procedure those catalyst materials and polymeric by-products which can cause difficulties in the downstream processing of such effluent. Polymer by-products and catalyst in the effluent are separated from reaction products by flash vaporization utilizing an in-situ hot solvent which is contacted with the effluent and serves as the heating medium to promote this flash vaporization step. Subsequent processing of a liquid portion of the effluent which is left after flash vaporization involves recovery of catalyst and polymeric by-products therefrom in a steam stripping vessel. Also disclosed is a multiple reactor system which can be used for continuous trimerization of ethylene to 1-hexene while at the same time washing polymeric by-products from one of the reactors in the series using a wash oil solvent. | 06-06-2013 |
20130225780 | POLYETHYLENE FILMS HAVING HIGH RESISTANCE TO DEFORMATION OR ELGONATION - Disclosed is a method for producing polyethylene films which have high resistance to deformation or elongation under loading in tension. The method comprises orienting in the machine direction (MD) a high density polyethylene film at a drawdown ratio effective to give the film an MD tensile strength at yield greater than or equal to 50,000 psi, wherein the HDPE has a density greater than 0.940 g/cm | 08-29-2013 |
20130245221 | PROCESS FOR PREPARING ETHYLENE AND PROPYLENE - The present invention provides a process preparing ethylene and propylene, comprising the step of:
| 09-19-2013 |
20130261278 | Polyethylene production improvement - Liquid ethylene is used to cool the hot froth in the high pressure separator. This prevents the thermal degradation that occurs during the transition from the reactor to pelletizing. Low density polyethylene with superior physical properties is the result. | 10-03-2013 |
20140249287 | POLYMER DEGASSING PROCESS CONTROL - The present invention relates to a process for operating a vertical fixed bed polymer powder degasser. | 09-04-2014 |
20140275462 | Radically Coupled Resins and Methods of Making and Using Same - An ethylene polymer having a density greater than about 0.930 g/ml and a level of long chain branching ranging from about 0.001 LCB/10 | 09-18-2014 |
20140288256 | GELATINIZED PRE-ORIENTED FILAMENTS AND PREPARATION METHOD THEREOF, AND ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE FIBERS AND PREPARATION METHOD THEREOF - Disclosed are a method for preparing gelatinized pre-oriented filaments and the gelatinized pre-oriented filaments prepared by the method. The method comprises: feeding a spinning dope into a twin-screw extruder for blending and extruding the same to obtain a first spinning solution having a non-Newtonian index of 0.1-0.8 and a structural viscosity index of 10-50; feeding the first spinning solution into a spinning box, and drawing at a spinneret with a factor of 5-20 so as to obtain a second spinning solution; and flash cooling and curing the second spinning solution so as to obtain the gelatinized pre-oriented filaments. Also provided are a method for preparing ultra-high molecular weight polyethylene fibers by using the above method and the fibers prepared by this method. The gelatinized pre-oriented filaments prepared by the above method are used to prepare the ultra-high molecular weight polyethylene fibers with the number of broken filament ends per 10 km being not more than 2 stretched at 40-55 fold, and the prepared ultra-high molecular weight polyethylene fibers have a denier per filament of less than 2.2 D and excellent mechanical performance. | 09-25-2014 |
20140288257 | POLYMERIZATION PROCESSES WITH FRESH ETHYLENE DISTRIBUTIONS FOR PREPARATION OF LOW DENSITY ETHYLENE-BASED POLYMERS - The invention provides a high pressure polymerization process to form an ethylene-based polymer, the process comprising at least the following steps: feeding ethylene to a first reaction zone and to one or more subsequent reaction zones, and wherein for each subsequent reaction zone that receives fresh ethylene, the ratio, Rn (n=reaction zone number, n>1), of “mass fraction of fresh ethylene fed to the first reaction zone (RZ1)” to “mass fraction of fresh ethylene fed to the nth reaction zone (RZn)” is (Rn=RZ1/RZn) greater than 1, or is from 0 to 0.30, and wherein the “total amount of ethylene fed to the polymerization process” derives from at least one fresh ethylene stream and at least one recycled ethylene stream, and wherein the at least one recycled ethylene stream comprises at least one chain transfer agent and/or comprises at greater than, or equal to, 1 weight %, based on total amount of components in recycled ethylene stream, of one or more non-ethylene components and/or CTA(s); and wherein the inlet feed to each reaction zone comprises less than 5 weight ppm oxygen based on the total weight of mass flows fed to the reaction zone. The invention also provides a high pressure polymerization process to form an ethylene-based polymer, the process comprising at least the following steps: feeding ethylene to a first reaction zone and to one or more subsequent reaction zones, and wherein 100 weight percent of the total amount of fresh ethylene fed to the polymerization process is fed to the first reaction zone, and wherein the “total amount of ethylene fed to the polymerization process” derives from at least one fresh ethylene stream and at least one recycled ethylene stream, and wherein the at least one recycled ethylene stream comprises at least one chain transfer agent and/or comprises at greater than, or equal to, 1 weight %, based on total amount of components in recycled ethylene stream, of one or more non-ethylene components and/or CTA(s); and wherein the inlet stream to each reaction zone comprises less than, or equal to, 5 weight ppm oxygen, based on the total weight of mass flows fed to the reaction zone. | 09-25-2014 |
20140296466 | Method for Producing Bio-Based Homoserine Lactone and Bio-Based Organic Acid from O-Acyl Homoserine Produced by Microorganisms - The present invention relates to a method of producing bio-based homoserine lactone and bio-based organic acid through hydrolysis of O-acyl homoserine produced by a microorganism in the presence of an acid catalyst. According to the present invention, O-acyl homoserine produced by a microorganism is used as a raw material for producing 1,4-butanediol, gamma-butyrolactone, tetrahydrofuran and the like, which are industrially highly useful. The O-acyl homoserine produced by a microorganism can substitute conventional petrochemical products, can solve environmental concerns, including the emission of pollutants and the exhaustion of natural resources, and can be continuously renewable so as not to exhaust natural resources. | 10-02-2014 |
20140303340 | Polyethylene with Low Catalytic Residues - A polyethylene can be prepared with a metallocene catalyst system. The polyethylene can have a density of at least 0.945 g/cm | 10-09-2014 |
20140323675 | Polyethylene Prepared with Supported Late Transition Metal Catalyst Systems - The present invention relates to the field of ethylene polymerisation with a supported late transition metal catalyst system. | 10-30-2014 |
20140378640 | Methods and Systems for Catalyst Delivery - A method for the delivery of a catalyst to a polymerization reactor is disclosed, comprising: contacting a catalyst with a carrier fluid comprising an inert hydrocarbon in gaseous form, the inert hydrocarbon having a normal boiling point of about −1° C. to about 81° C.; and flowing the carrier fluid to the polymerization reactor such that the carrier fluid transports the catalyst to the polymerization reactor. A catalyst delivery system is disclosed, comprising: a catalyst vessel for containing a catalyst; a catalyst injection line for delivering the catalyst to a polymerization reactor, the catalyst injection line being in fluid communication with the catalyst vessel and the polymerization reactor; and a carrier fluid line in fluid communication with the catalyst injection line for delivering a carrier fluid comprising an inert hydrocarbon to the catalyst injection line, the inert hydrocarbon having a normal boiling point of about −1° C. to about 81° C. | 12-25-2014 |
20150112038 | METHOD FOR COOLING A GAS-PHASE REACTOR FOR THE POLYMERIZATION OF OLEFINS - A method for controlling the temperature in a polymerization reactor equipped with a cycle gas line for withdrawing reactor gas from the reactor, leading the reactor gas through a heat-exchanger, which is cooled by a cooling medium, which is conveyed in a cooling system through the heat-exchanger, and feeding the reactor gas back to the reactor by adjusting the temperature of the cooling medium entering the heat exchanger, wherein the temperature of the cooling medium entering the heat exchanger is controlled by adjusting the flow rate of the cooling medium in a part of the cooling system by a flow control system comprising two continuously operating flow control devices of different size, which are connected in parallel, a process for polymerizing olefins and a process for controlling the flow rate of a fluid medium. | 04-23-2015 |
20150119544 | HYDROCARBON CONVERSION PROCESS - The invention relates to processes for converting a mixture of hydrocarbon and sulfur-containing molecules such as mercaptan into products comprising acetylene, ethylene, and hydrogen sulfide, to processes utilizing the acetylene and ethylene resulting from the conversion, and to equipment useful for such processes. | 04-30-2015 |
20150119545 | METHOD OF FABRICATING THERMAL CONDUCTIVE POLYMER - Provided is a method of fabricating a thermal conductive polymer, including: a) fabricating a gel filament by primarily elongating a solution filament formed by spinning a mixed solution containing an ultra high molecular weight polyolefin (UHMWPO) resin and a first solvent, followed by cooling; b) secondarily elongating the gel filament; c) fabricating a dry filament by removing the solvent from the gel filament, followed by tertiary elongation; and d) converting the dry filament into the gel filament by adding the first solvent to the dry filament; e) removing the first solvent from the converted gel filament; and f) quaternarily elongating the gel filament from which the first solvent is removed. | 04-30-2015 |
20150290862 | SOLID-STATE STRETCHED HDPE - An ISBM article is disclosed wherein the ISBM article is made from an HDPE resin having a MI2 of 0.1 to 5.0 dg/min as measured by ASTM D-1238; 190° C./2.16 kg, a density of from 0.940 to 0.970 g/cc as measured by ASTM D792, a peak molecular weight of greater than 40,000 g/mol and a zero shear viscosity between 15,000 and 250,000 Pa·sec. | 10-15-2015 |
20150337057 | Oligomerization Processes and Polymer Compositions Produced Therefrom - Disclosed herein are methods for recovering a by-product stream of an ethylene oligomerization process, and systematically processing this stream in order to form a polymer composition that can be pelletized conventionally. This polymer composition can have a bimodal molecular weight distribution, which can be characterized by a ratio of the respective peak molecular weights ranging from 400:1 to 2000:1, and further, a liquid component of the polymer composition is in a range from 1 to 35 weight percent. | 11-26-2015 |
20160130730 | HIGH TENACITY HIGH MODULUS UHMWPE FIBER AND THE PROCESS OF MAKING - Processes for preparing ultra-high molecular weight polyethylene (“UHMW PE”) filaments and multi-filament yarns, and the yarns and articles produced therefrom. Each process produces UHMW PE yarns having tenacities of 45 g/denier to 60 g/denier or more at commercially viable throughput rates. | 05-12-2016 |
20160199806 | REACTOR COMPRISING A PLASMA SOURCE AND A CATALYST COMPRISING A MESOPOROUS SUPPORT MATERIAL FOR THE PREPARATION OF ETHENE FROM METHANE | 07-14-2016 |
526352200 | Low density | 8 |
20080214768 | Preparation of ultra high molecular weight linear low density polyethylene - Disclosed is a method of preparing an ultra-high molecular weight, linear low density polyethylene with a catalyst system that comprises a bridged indenoindolyl transition metal complex, a non-bridged indenoindolyl transition metal complex, an alumoxane activator and a boron-containing activator. The ultra-high molecular weight, linear low density polyethylene has a weight average molecular weight greater than 1,000,000 and a density less than 0.940 g/cm | 09-04-2008 |
20140094583 | ETHYLENE-BASED POLYMERS AND PROCESSES TO MAKE THE SAME - An ethylene-based polymer, which is a low density polyethylene (LDPE), obtained by free radical polymerization of ethylene, and wherein the LDPE has a GPC parameter “LSP” less than 1.60. | 04-03-2014 |
20140187730 | Low Density Polyethylene with Low Dissipation Factor and Process for Producing Same - The present disclosure provides a process for producing low density polyethylene with a dissipation factor less than or equal to | 07-03-2014 |
20140288258 | Bimodal Polyethylene - The invention relates to A process for the polymerisation of ethylene to produce a polyethylene resin in at least two slurry loop reactors connected to each other in series, the resin having a bimodal molecular weight distribution, a molecular weight distribution MWD of at least 7.0, an HLMI of from 1 to 100 g/10 min, and a density of from 0.935 to 0.960 g/cm | 09-25-2014 |
20140316096 | LOW DENSITY ETHYLENE-BASED POLYMERS WITH EXTRACTS AT LOWER MOLECULAR WEIGHTS - The invention provides an ethylene-based polymer comprising the following properties: A) a “weight fraction (w) of molecular weight greater than 106 g/mole, based on the total weight of polymer, and as determined by GPC(abs),” that meets the following relationship: w | 10-23-2014 |
20140357826 | STRETCHED FILMS WITH MAINTAINED TEAR RESISTANCE AND METHODS FOR MAKING THE SAME - Methods of stretching thermoplastic films in the machine direction include elongating the films in the machine direction without significantly reducing the films' machine-direction tear resistance. In one or more implementations, methods of stretching thermoplastic films include reducing the gauge of the films while substantially maintaining the films' machine-direction tear resistance. The methods can involve uniformly cold stretching the films by stretching the films to a draw of about one hundred and eighty percent, or less, of the films' original length. | 12-04-2014 |
20150045527 | Film, especially for use in non-disruptive sewage pipe renovation - A film suitable for permanent, firm bonding with resin after hardening of the resin is provided with at least one layer containing at least one polyolefin plastomer (POP) or one polyolefin elastomer (POE) capable of bringing about a permanent, direct adhesion of the resin to this layer during the course of resin hardening. The invention likewise refers to an arrangement with at least one such film and a resin on one side of the film. The invention also refers to a tube liner for non-disruptive sewage pipe renovation and various applications of the film according to the invention or the arrangement according to the invention in non-disruptive sewage pipe renovation. | 02-12-2015 |
20150112039 | ETHYLENE-BASED POLYMERS AND PROCESSES TO MAKE THE SAME - An ethylene-based polymer, which is a low density polyethylene (LDPE), obtained by free radical polymerization of ethylene, and wherein the LDPE has a GPC parameter “LSP” less than 1.60. | 04-23-2015 |