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公开(公告)号：US20210316920A1
公开(公告)日：2021-10-14
申请号：US17272515
申请日：2019-09-03
发明人： Kota ITO
摘要： A readily tearable co-extruded multilayer barrier film being a multilayer film formed from at least three layers, the readily tearable co-extruded multilayer barrier film comprising a layered body having a barrier layer (I) containing a polar resin (a) as a main component, and an adhesive layer (II) and an adhesive layer (III) laminated on both sides adjacent to the barrier layer (I), the adhesive layer (II) and the adhesive layer (III) each at least containing a modified polyolefin-based resin (b) modified with an unsaturated carboxylic acid or a derivative thereof, and a cyclic olefin-based resin (c).
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公开(公告)号：US10919994B2
公开(公告)日：2021-02-16
申请号：US16081311
申请日：2017-03-03
IPC分类号： C08F4/6592 , C08F210/16 , C08F210/08 , C08F10/00 , C07F19/00 , C07F7/08 , C07F17/00 , C07F7/00
摘要： The metallocene compound represented by the following general formula (1): (the numerals and signs in the general formula (1) are as described in the description).
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公开(公告)号：US10717855B2
公开(公告)日：2020-07-21
申请号：US15518314
申请日：2015-10-15
摘要： An object of the present invention is to provide a novel production method of ethylene-based ionomer having excellent mechanical properties and heat resistance which exhibits remarkably excellent breaking elongation, breaking stress, and strain hardening, and has a high melting point. The present invention relates to a production method of an ethylene-based ionomer including a heating conversion step of heating a specific ethylene/unsaturated carboxylic acid ester copolymer and converting the ester group in the copolymer into a metal-containing carboxylate containing a metal ion of Group 1, 2, or 12 of the periodic table.
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公开(公告)号：US10414837B2
公开(公告)日：2019-09-17
申请号：US15522439
申请日：2015-09-15
发明人： Kyoko Nozaki , Shingo Ito , Yusuke Ota , Yoshikuni Okumura , Junichi Kuroda , Masafumi Koyano , Minoru Kobayashi , Hiroyuki Shimizu
IPC分类号： C08F4/80 , C08F10/02 , C08F210/16
摘要： The present invention relates to a method for producing a copolymer of ethylene and a polar group-containing olefin using as a catalyst a metal complex of group 10 elements having a structure represented by formula (C4) and (C5) (in the formula, “Men” represents a menthyl group and “Me” represents a methyl group). The method of the present invention makes it possible to produce a polar group-containing olefin polymer available for various applications, as being a high molecular weight body, which has been difficult to produce, and to produce the polymer in a molecular weight range such that the polymer has good moldability.
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公开(公告)号：US10259891B2
公开(公告)日：2019-04-16
申请号：US15328196
申请日：2015-07-23
发明人： Yohei Konishi , Yasuo Maruyama , Naomasa Sato , Akio Tanna
摘要： An object of the present invention is to provide a novel catalyst for olefin (co)polymer production, which has high activity without using a large amount of a cocatalyst and is aimed for obtaining a particulate olefin (co)polymer. The invention relates to an olefin polymerization catalyst which comprises: a solid carrier (1) that has been brought into contact with a specific compound; and a metal catalyst component (2) that contains a transition metal compound (C) containing a transition metal M belonging to Group 9, 10, or 11 of the periodic table and has a reactive group Ra.
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公开(公告)号：US20190062514A1
公开(公告)日：2019-02-28
申请号：US16080445
申请日：2017-02-28
发明人： Keiichi SASAKI , Shinji SAKAMOTO
摘要： The present invention provides a polyethylene-based resin composition for a foamable laminate which contains a polyethylene-based resin (A) satisfying the following properties (a-1) to (a-3): (a-1) MFR is 6 g/10 minutes or more and less than 20 g/10 minutes; (a-2) the density is from 0.920 to 0.930 g/cm3; and (a-3) the ratio of eluates at an elution temperature of 70° C. or higher is from 47 to 83% by weight in the elution curve obtained by a temperature rising elution fractionation (TREF) with o-dichlorobenzene.
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公开(公告)号：US20190062473A1
公开(公告)日：2019-02-28
申请号：US16147980
申请日：2018-10-01
发明人： Kazunari Abe , Minoru Kobayashi , Hideshi Uchino , Hiroyuki Shimizu , Tetsuya Morioka , Naoshi Iwama
IPC分类号： C08F210/02 , C09J123/08 , C09J123/04 , C09J7/20 , B29C45/00 , B32B1/08 , B32B5/02 , B32B7/12 , B32B9/04 , B32B15/085 , B32B15/092 , B32B23/08 , B32B27/08 , B32B27/10 , B32B27/32 , B32B27/38 , C08F220/18 , C08F236/04 , C08J5/18 , C08L23/04 , C08L23/06 , C08L23/08 , C09D123/08 , B29K23/00
摘要： The present invention relates to a polar group-containing olefin copolymer (A′) which is produced through polymerization using a transition metal catalyst, which has a weight-average molecular weight falling within a specific range and which contains a polar group-containing monomer within a specific range; a multinary polar olefin copolymer (A″) indispensably containing a polar monomer component that has a norbornene skeleton and a carboxyl group or an acid anhydride group and having three or more types of monomer units; and a resin composition (C) containing a specific amount of a polar group-containing olefin copolymer (A) and a specific amount of an olefin resin (B).
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公开(公告)号：US10066036B2
公开(公告)日：2018-09-04
申请号：US15128201
申请日：2015-03-31
发明人： Yoshiyuki Ishihama , Ryotaro Harada , Masaru Aoki , Kenji Iiba , Kazushi Kodama , Hiroto Hayashi
IPC分类号： C08F210/16 , C08L23/08 , C08J5/18
摘要： [Problem] To provide an ethylene-α-olefin copolymer that is highly effective in improving the molding properties of polyolefin resins, improving the balance between impact strength and stiffness, and improving transparency. [Solution] Provided is an ethylene-α-olefin copolymer having a specific MFR, a specific density, and a specific molecular weight distribution, containing a suitable amount of a long-chain branching structure characterized by a branching index, and having a specific composition distribution structure characterized by solvent fractionation behavior.
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9.发明申请公开(公告)号：US20180201704A1
公开(公告)日：2018-07-19
申请号：US15868276
申请日：2018-01-11
发明人： Naomasa SATO , Fumihiko SHIMIZU , Akio TANNA , Toshiaki EGASHIRA
IPC分类号： C08F210/02 , C08F8/12
摘要： Provided is a process of effectively producing an ethylene/unsaturated carboxylic acid copolymer having excellent mechanical and thermal properties. A process for producing an ethylene/unsaturated carboxylic acid copolymer comprises: producing an ethylene/unsaturated carboxylic acid ester copolymer from ethylene and unsaturated carboxylic acid ester using a late-transition-metal complex catalyst; and heating the ethylene/unsaturated carboxylic acid ester copolymer at a temperature capable of converting the ester group into a carboxylic acid group, thereby converting into the ethylene/unsaturated carboxylic acid copolymer.
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公开(公告)号：US20180112070A1
公开(公告)日：2018-04-26
申请号：US15561804
申请日：2016-03-30
发明人： Tomomi HIRAMOTO , Tetsurou FUKUDA
CPC分类号： C08L23/06 , C08F4/65912 , C08F10/02 , C08F2500/04 , C08F2500/08 , C08F2500/12 , C08L23/08 , C08L2205/02 , F16L9/12 , F16L47/00 , C08L23/0815 , C08F2/005 , C08F210/16 , C08F210/14 , C08F4/65927
摘要： A polyethylene for a pipe and a joint of the present invention satisfies the following characteristics (1) to (5): Characteristic (1): a melt flow rate at a temperature of 190° C. and a load of 21.6 kg (HLMFR) is 5 to 20 g/10 minutes, Characteristic (2): a density (D) is 0.954 to 0.960 g/cm3, Characteristic (3): a ratio of weight-average molecular weight (Mw) and number-average molecular weight (Mn) (Mw/Mn) measured by gel permeation chromatography (GPC) is 15 to 27, Characteristic (4): a rupture time at 80° C. and 5 MPa by a full notch creep test (FNCT) is 150 hours or more, and Characteristic (5): a Charpy impact strength (CIS) measured at −20° C. is 8.5 kJ/m2 or more.
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