Polyethylene polymer powder and method of producing same
Provided are a polyethylene polymer powder and method of producing the same that can improve molding efficiency while maintaining high levels of molded product strength and wear resistance. The polyethylene polymer powder comprises an ethylene homopolymer or copolymer and has an intrinsic viscosity...
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| creator | Kikuchi, Akitomo |
| description | Provided are a polyethylene polymer powder and method of producing the same that can improve molding efficiency while maintaining high levels of molded product strength and wear resistance. The polyethylene polymer powder comprises an ethylene homopolymer or copolymer and has an intrinsic viscosity IV of at least 12 dL/g and not more than 35 dL/g, a melting peak full width at half maximum of at least 2° C. and not more than 7° C., a span (laser particle size distribution measurement) of at least 0.9 and not more than 2, and an α-olefin content of 0 mol % to not more than 1.50 mol %. The method of producing this polyethylene polymer powder includes polymerizing ethylene or ethylene and an α-olefin by slurry polymerization using a loop reactor. In the polymerizing, supply of a solvent and ethylene or supply of a solvent, ethylene, and an α-olefin is performed by a plurality of supply lines. |
| format | Patent |
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The polyethylene polymer powder comprises an ethylene homopolymer or copolymer and has an intrinsic viscosity IV of at least 12 dL/g and not more than 35 dL/g, a melting peak full width at half maximum of at least 2° C. and not more than 7° C., a span (laser particle size distribution measurement) of at least 0.9 and not more than 2, and an α-olefin content of 0 mol % to not more than 1.50 mol %. The method of producing this polyethylene polymer powder includes polymerizing ethylene or ethylene and an α-olefin by slurry polymerization using a loop reactor. 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The polyethylene polymer powder comprises an ethylene homopolymer or copolymer and has an intrinsic viscosity IV of at least 12 dL/g and not more than 35 dL/g, a melting peak full width at half maximum of at least 2° C. and not more than 7° C., a span (laser particle size distribution measurement) of at least 0.9 and not more than 2, and an α-olefin content of 0 mol % to not more than 1.50 mol %. The method of producing this polyethylene polymer powder includes polymerizing ethylene or ethylene and an α-olefin by slurry polymerization using a loop reactor. In the polymerizing, supply of a solvent and ethylene or supply of a solvent, ethylene, and an α-olefin is performed by a plurality of supply lines.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G BANDAGES, DRESSINGS OR ABSORBENT PADS CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMISTRY COMPOSITIONS BASED THEREON DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION GENERAL PROCESSES OF COMPOUNDING HUMAN NECESSITIES HYGIENE MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METALLURGY METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL ORGANIC MACROMOLECULAR COMPOUNDS ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PROSTHESES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OR PROTECTION OF EYES OR EARS WORKING-UP |
| title | Polyethylene polymer powder and method of producing same |
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