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    GAS-BARRIER RESIN COMPOSITION AND USE THEREOF
    1.
    发明公开
    GAS-BARRIER RESIN COMPOSITION AND USE THEREOF 审中-公开

    公开(公告)号：EP3660105A1

    公开(公告)日：2020-06-03

    申请号：EP18839085.0

    申请日：2018-07-17

    申请人： Showa Denko K.K. ,  Japan Polyethylene Corporation

    发明人： KURODA, Junichi ,  OKUMURA, Yoshikuni ,  HAYASHI, Shinya ,  UEMATSU, Masahiro ,  HATTORI, Takaaki ,  YASUKAWA, Yuichiro

    IPC分类号： C08L101/12 ,  B32B27/00 ,  C08F8/12 ,  C08L23/08 ,  C08L29/04

    摘要： The present invention relates to a gas-barrier resin composition, including: a gas-barrier resin (A) having an oxygen permeability coefficient of 1.0×10 -14 (cm 3 ·cm/cm 2 ·s·Pa) or less; and a copolymer (B) containing monomer structural units represented by the formula (1), the formula (2), and the formula (3):

    where: R 1 represents a hydrogen atom or a methyl group; R 2 represents a hydrocarbon group having 1 to 20 carbon atoms that may be substituted with a halogen atom, a hydroxy group, an alkoxy group, or an amino group; l, m, and n represent numerical values representing molar proportions of the respective monomer structural units, and n may represent 0; and p represents an integer of from 1 to 4, wherein a ratio of a mass of the copolymer (B) to a total mass of the gas-barrier resin (A) and the copolymer (B) is from 1 mass% to 40 mass%. Preferred as the gas-barrier resin (A) are a vinyl alcohol-based resin (A1), a polyamide-based resin (A2), and a polyester-based resin (A3). The present invention can provide a resin composition ameliorated in low flexibility and low impact resistance, which are drawbacks of a gas-barrier resin, without impairing excellent gas barrier properties of the gas-barrier resin.

    PRODUCTION METHOD OF ETHYLENE-BASED IONOMER AND ETHYLENE-BASED IONOMER
    2.
    发明公开
    PRODUCTION METHOD OF ETHYLENE-BASED IONOMER AND ETHYLENE-BASED IONOMER 审中-公开
    基于乙烯的离聚物和基于乙烯的离聚物的生产方法

    公开(公告)号：EP3208285A1

    公开(公告)日：2017-08-23

    申请号：EP15849977.2

    申请日：2015-10-15

    申请人： Japan Polyethylene Corporation ,  Japan Polypropylene Corporation

    发明人： HATTORI, Takaaki ,  EGASHIRA, Toshiaki ,  UEMATSU, Masahiro

    IPC分类号： C08F8/00 ,  C08F210/02 ,  C08F220/10

    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.

    摘要翻译： 本发明的目的在于提供一种显示出优异的机械特性和耐热性的乙烯类离子聚合物的新型制造方法，其显示出显着优异的断裂伸长率，断裂应力和应变硬化，并且具有高熔点。 本发明涉及一种基于乙烯的离聚物的生产方法，该方法包括加热转化步骤，加热特定的乙烯/不饱和羧酸酯共聚物并将该共聚物中的酯基转化为含有金属离子的含金属羧酸盐 1,2或12周期表。

    POLYETHYLENE HAVING IMPROVED BRANCHING DEGREE DISTRIBUTION
    4.
    发明公开
    POLYETHYLENE HAVING IMPROVED BRANCHING DEGREE DISTRIBUTION 有权
    聚乙烯麻醉剂VERBESSERTER VERZWEIGUNGSGRADVERTEILUNG

    公开(公告)号：EP2657260A1

    公开(公告)日：2013-10-30

    申请号：EP11851416.5

    申请日：2011-12-22

    申请人： Japan Polyethylene Corporation

    发明人： KUZUBA, Yuuichi ,  MONOI, Takashi ,  KANAZAWA, Satoshi ,  OGAWA, Kouichi ,  HATTORI, Takaaki ,  YOSHIMOTO, Keiichi

    IPC分类号： C08F4/78 ,  C08F4/69 ,  C08F10/00

    CPC分类号： C08F210/16 ,  Y10T428/1397 ,  C08F4/69 ,  C08F210/14 ,  C08F2500/04 ,  C08F2500/12

    摘要： An object of the present invention is to provide polyethylene having excellent moldability and impact resistance and excellent balance between rigidity and durability, produced using a novel organoaluminum compound-supported chromium catalyst, a method for producing polyethylene, and a hollow plastic molding containing the polyethylene. The polyethylene of the invention is polymerized using a chromium catalyst, and has a weight average molecular weight (Mw) of 30,000 or more at the maximum value in a branching degree distribution curve that shows a molecular weight dependency of short chain branches having 4 or more carbon atoms.

    摘要翻译： 本发明的目的是提供使用新颖的有机铝化合物负载的铬催化剂制备的具有优异的模塑性和耐冲击性以及刚性和耐久性之间的优异平衡的聚乙烯，聚乙烯的制造方法和含有该聚乙烯的中空塑料模制品。 使用铬催化剂聚合本发明的聚乙烯，并且在显示具有4个或更多个的短链分支的分子量依赖性的支化度分布曲线中，其最大值的重均分子量（Mw）为30,000或更大 碳原子。