JAPAN POLYETHYLENE CORPORATION Patent applications |
Patent application number | Title | Published |
20160046842 | POLAR-GROUP-CONTAINING OLEFIN COPOLYMER, POLAR-GROUP-CONTAINING MULTINARY OLEFIN COPOLYMER, OLEFIN-BASED RESIN COMPOSITION, AND ADHESIVE AND LAYERED PRODUCT EACH USING THE SAME - A polar-group-containing olefin copolymer which comprises 99.999 to 80 mol % of structural units derived from at least one of ethylene and α-olefin having 3 to 20 carbon atoms and 20 to 0.001 mol % of structural units derived from at least one polar-group-containing monomer which contains an epoxy group and is represented by the structural formula (I) or structural formula (II), the polar-group-containing olefin copolymer being a random copolymer obtained by copolymerization in the presence of a transition metal catalyst and having a linear molecular structure. | 02-18-2016 |
20150183982 | POLYACETAL RESIN COMPOSITION, COMPOSITE MOLDING USING THE SAME, AND METHOD FOR PRODUCING THE SAME - The invention is a polyacetal resin composition containing a polyacetal resin (A) and a polyethylene resin (B), in which the blending proportion of the polyacetal resin (A) occupying in the total mass of the polyacetal resin (A) and the polyethylene resin (B) is 10 to 90 mass %, the melt flow rate of the polyacetal resin (A) measured at a condition of 190° C. and 2.16 kg load is 30 g/10 minutes or less, and the polyethylene resin (B) consists of a modified polyethylene resin and the modification rate is 0.01 mass % or more based on 100 mass % of the total mass of the polyethylene resin and the melt flow rate of the polyethylene resin (B) measured at a condition of 190° C. and 2.16 kg load is 2.5 g/10 minutes or less. | 07-02-2015 |
20150045485 | POLYETHYLENE-BASED RESIN COMPOSITION FOR CONTAINER LID, AND CONTAINER LID - The present invention is to provide a polyethylene resin composition for container closures and a container closure exhibiting excellent mouldability, high flowability, excellent balance between rigidity and impact resistance, excellent stress cracking resistance, excellent sliding property, low odour level, harmlessness for food, decreased elongation at high temperatures and sterilizability by electron beam upon attachment of the closure to a container. The present invention is a polyethylene resin composition for a container closure, this composition having, relative to 100 parts by weight of a polyethylene resin, 0.01 to 0.50 parts by weight of a hindered amine compound and having the following properties (a) to (f):
| 02-12-2015 |
20140194277 | ETHYLENE-BASED POLYMER, POLYETHYLENE-BASED RESIN COMPOSITION AND USE THEREOF, CATALYST COMPONENT FOR OLEFIN POLYMERIZATION, OLEFIN POLYMERIZATION CATALYST CONTAINING THE COMPONENT, AND METHOD FOR PRODUCING ETHYLENE-BASED POLYMER BY USING THE CATALYST - An object of the present invention is to provide a polyethylene-based resin composition excellent in the moldability and at the same time, excellent in the balance between impact strength and stiffness as well as in the transparency, and a molded product and a film, which are obtained by the molding of the polyethylene-based resin composition. The polyethylene-based resin composition of the present invention comprises from 41 to 99 wt % of (A) an ethylene-based polymer satisfying specific conditions and from 1 to 59 wt % of (B) an ethylene-based polymer satisfying specific conditions, wherein MFR of the composition as a whole is from 0.05 to 50 g/10 min and the density is from 0.910 to 0.960 g/cm | 07-10-2014 |
20140030460 | ETHYLENE-BASED POLYMER, MANUFACTURING METHOD OF ETHYLENE-BASED POLYMER AND MANUFACTURING METHOD OF CATALYST FOR POLYMERIZATION, AND MOLDED ARTICLE OF HOLLOW PLASTICS CONTAINING ETHYLENE-BASED POLYMER AND USE THEREOF - An object of the invention is to provide an ethylene-based polymer excellent in moldability and durability, and also excellent in the balance of stiffness and durability, and to provide a molded product of hollow plastic using the ethylene-based polymer. The ethylene-based polymer according to the invention is an ethylene-based polymer having specific characteristics and manufactured by a homopolymerization of ethylene or a copolymerization of ethylene and α-olefin using a chromium catalyst. | 01-30-2014 |
20130167909 | SOLAR CELL ENCAPSULANT, AND SOLAR CELL MODULE USING THE SAME - A solar cell encapsulant used the resin component containing an ethylene.α-olefin copolymer and a copolymer of ethylene-a functional group-containing monomer, having good productivity, superior transparency, and also superior modulus of elasticity in tension, heat resistance, adhesive property and steam transmittance resistance, and the solar cell module using the same. | 07-04-2013 |
20130137833 | RESIN COMPOSITION FOR SOLAR CELL ENCAPSULANT, AND SOLAR CELL ENCAPSULANT AND SOLAR CELL MODULE USING THE SAME - A resin composition for a solar cell encapsulant containing an ethylene.α-olefin copolymer and an organic peroxide or a silane coupling agent or the like, and having superior heat resistance, transparency, flexibility and adhesion property to a glass substrate, as well as good balance between rigidity and cross-linking efficiency, the solar cell encapsulant and a solar cell module using the same. | 05-30-2013 |
20120058288 | POLYETHYLENE BASED RESIN, PRODUCING CATALYST FOR THE SAME, METHOD FOR PRODUCING THE SAME, HOLLOW PLASTIC MOLDED ARTICLE CONTAINING POLYETHYLENE BASED RESIN, AND USE OF THE SAME - A polyethylene based resin exhibiting excellent moldability and durability and having an excellent balance between impact resistance and stiffness; and a hollow plastic molded article using the foregoing resin, which exhibits excellent moldability, durability and barrier properties and has an excellent balance between impact resistance and stiffness, are provided. The polyethylene based resin satisfies the following requirements (1) to (4): (1) a high-load melt flow rate (HLMFR) is from 1 to 100 g/10 min; (2) a density is from 0.940 to 0.960 g/cm | 03-08-2012 |
20120000514 | RESIN COMPOSITION FOR SOLAR CELL ENCAPSULANT, SOLAR CELL ENCAPSULANT AND SOLAR CELL MODULE USING THE SAME - A resin composition for a solar cell encapsulant is provided, containing an ethylene•α-olefin copolymer and an organic peroxide or a silane coupling agent or the like, and having superior heat resistance, transparency, flexibility and adhesion property to a glass substrate, as well as good balance between rigidity and cross-linking efficiency, as well as a solar cell encapsulant, and a solar cell module using the same. The resin composition has an ethylene•α-olefin copolymer (A), having the characteristics (a1) to (a4), along with characteristics (a5) or (a6), and an organic peroxide (B) and/or a silane coupling agent (C). | 01-05-2012 |
20110257351 | NOVEL TRIARYLPHOSPHINE OR TRIARYLARSINE COMPOUND, ALPHA-OLEFIN POLYMERIZATION CATALYST USING THE COMPOUND, TERNARY COPOLYMER, AND PRODUCTION PROCESS OF ALPHA-OLEFIN -((METH)ACRYLIC ACID)-BASED COPOLYMER - To provide an industrially useful α-olefin.((meth)acrylic acid)-based olefin copolymer having both a high molecular weight and a high comonomer content, a catalyst component capable of realizing a production of two different kinds of α-olefin.((meth)acrylic acid)-based olefin copolymers, and a production process using the catalyst. An α-olefin.((meth)acrylic acid)-based olefin copolymer is produced by using a metal complex complexed with a ligand represented by the following formula (Y is phosphorus or arsenic) for a catalyst composition. | 10-20-2011 |
20110213110 | NOVEL METAL COMPLEX AND METHOD FOR PRODUCING ALPHA-OLEFIN POLYMER AND METHOD FOR PRODUCING ALPHA-OLEFIN/(METH)ACRYLATE COPOLYMER USING THE SAME - A novel catalyst component for producing a crystalline α-olefin polymer or α-olefin/(meth)acrylate copolymer having few branches, especially a polymer having a high molecular weight, and a method for producing an α-olefin polymer or an α-olefin/(meth)acrylate copolymer using the catalyst component. | 09-01-2011 |
20090082523 | POLYETHYLENE RESIN, PROCESS FOR PRODUCING THE SAME, AND PIPE AND JOINT COMPRISING THE RESIN - The invention relates to a polyethylene resin having excellent slow crack growth property, in particular a resin having excellent durability in a pipe application, which has a specific (a) high-load melt flowrate (HLMFR; HLa), a specific (b) density (Da), and a specific (c) α-olefin content (Ca) and in which (d) a breaking time (T) measured by notched Lander ESCR, the HLa, and the Ca satisfy log T≧−2.9×log HLa+5.1×log Ca+6.8. It further relates to a process for producing the resin and to a pipe and a joint each comprising the resin. | 03-26-2009 |