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1. 发明申请

US20160237224A1 RESIN COMPOSITION AND MULTILAYER STRUCTURE USING SAME 有权
标题翻译：树脂组合物和使用相同的多层结构
公开(公告)号：US20160237224A1
公开(公告)日：2016-08-18
申请号：US15134957
申请日：2016-04-21
申请人： Kuraray Co., Ltd.
发明人： Osamu KAZETO
IPC分类号： C08J3/22 , C08L23/12 , B29C47/06 , C08J3/00
CPC分类号： C08J3/226 , B29C47/065 , B29K2023/0633 , B29K2023/083 , B29K2023/086 , C08J3/005 , C08J2323/12 , C08J2423/00 , C08J2423/06 , C08J2423/08 , C08J2429/04 , C08J2431/00 , C08J2431/04 , C08K5/098 , C08L23/02 , C08L23/06 , C08L23/0853 , C08L23/0861 , C08L23/12 , C08L29/04 , C08L2205/02 , C08L2205/035 , C08L2205/06 , C08L2205/08 , C08L2207/066 , C08L2310/00 , C08L2666/02 , Y10T428/31928
摘要： A resin composition, comprising: a polyolefin (A); a saponified ethylene-vinyl acetate copolymer (EVOH) (B) having an ethylene content of 20 to 65 mol% and having a degree of saponification of vinyl acetate units of 96% or more; a higher fatty acid metal salt (C) having 8 to 22 carbon atoms; a conjugated polyene compound (D) having a boiling point of 20° C. or higher; an ethylene-vinyl acetate copolymer (E); and a saponified ethylene-vinyl acetate copolymer (F) having an ethylene content of 68 to 98 mol% and having a degree of saponification of vinyl acetate units of 20% or more, wherein the mass ratio (A:B) of the polyolefin (A) and the EVOH (B) is 60:40 to 99.9: 0.1, the amount of the higher fatty acid metal salts (C) is in the range of 0.0001 to 10 parts by mass per 100 parts by mass of the total of the polyolefin (A) and the EVOH (B), the amount of conjugated polyene compound (D) is in the range of 0.000001 to 1 part by mass, and the total amount of the ethylene-vinyl acetate copolymer (E) and the saponified ethylene-vinyl acetate copolymer (F) is 0.3 part by mass or more. This enables improvement of poor appearance of a molded article caused by insufficient dispersion of the EVOH (B) at the time of melt molding a resin composition comprising the polyolefin (A) and the EVOH (B).
摘要翻译：一种树脂组合物，其包含：聚烯烃（A）; 乙烯含量为20〜65摩尔％，乙酸乙烯酯单元的皂化度为96％以上的皂化乙烯 - 乙酸乙烯酯共聚物（EVOH）（B）具有8-22个碳原子的高级脂肪酸金属盐（C）; 沸点为20℃以上的共轭多烯化合物（D）乙烯 - 乙酸乙烯酯共聚物（E）; 和乙烯含量为68〜98摩尔％，乙酸乙烯酯单元的皂化度为20％以上的皂化乙烯 - 乙酸乙烯酯共聚物（F），其中聚烯烃的质量比（A:B） A），EVOH（B）为60:40〜99.9:0.1，高分子量脂肪酸金属盐（C）的含量相对于总量的100质量份为0.0001〜10质量份聚烯烃（A）和EVOH（B）中，共轭多烯化合物（D）的含量在0.000001〜1质量份的范围内，乙烯 - 乙酸乙烯酯共聚物（E）和皂化乙烯乙酸乙烯酯共聚物（F）为0.3质量份以上。由此，在熔融成型含有聚烯烃（A）和EVOH（B）的树脂组合物时EVOH（B）的分散不充分的情况下，能够改善模塑制品的外观不良。

2. 发明申请

US20150376372A1 RESIN COMPOSITION, MOLDED ARTICLE, MULTILAYERED PIPE AND METHOD FOR PRODUCING THE SAME 审中-公开
标题翻译：树脂组合物，成型品，多层管及其制造方法
公开(公告)号：US20150376372A1
公开(公告)日：2015-12-31
申请号：US14843158
申请日：2015-09-02
申请人： KURARAY CO., LTD.
发明人： Osamu KAZETO , Wataru Hirose
IPC分类号： C08K5/09 , B32B5/18 , B32B1/08 , F16L59/14 , B29C47/06 , B29C47/00 , B29C44/12 , F16L9/14 , C08K5/20 , B32B27/30
CPC分类号： C08K5/09 , B29C44/1228 , B29C47/0023 , B29C47/06 , B29K2023/086 , B29K2075/00 , B29K2105/04 , B29K2995/0067 , B29L2023/225 , B32B1/08 , B32B5/18 , B32B27/306 , B32B2266/0278 , B32B2307/304 , B32B2307/714 , B32B2307/7242 , B32B2597/00 , C08K5/005 , C08K5/20 , C08K2201/008 , F16L9/14 , F16L59/14 , Y10T428/1376 , Y10T428/1393 , C08L29/04 , C08L23/0861
摘要： An object of the present invention is to provide a multilayered pipe having a layer comprising a resin composition containing EVOH, which is unlikely to exhibit the occurrence of cracking in the EVOH layer due to oxidative degeneration and has excellent gas barrier property even during long-term usage at high temperatures, and also to provide a resin composition for obtaining the multilayered pipe. The present invention relates to a resin composition containing 0.001 to 5 parts by mass of an antioxidant (B) and 0.00001 to 0.3 parts by mass of a conjugated polyene compound (C) having a molecular weight of 1000 or less, relative to 100 parts by mass of an ethylene-vinyl alcohol copolymer (A).
摘要翻译：本发明的目的是提供一种具有包含含有EVOH的树脂组合物的层的多层管，其不易在氧化变性中在EVOH层中发生裂纹，并且即使在长期内也具有优异的阻气性在高温下使用，还提供用于获得多层管的树脂组合物。本发明涉及含有0.001〜5质量份抗氧化剂（B）和0.00001〜0.3质量份分子量为1000以下的共轭多烯化合物（C）的树脂组合物，相对于100份乙烯 - 乙烯醇共聚物（A）的质量。

3. 发明申请

US20230073770A1 POLYVINYL ALCOHOL RESIN FILM, METHOD FOR DISCRIMINATING POLYVINYL ALCOHOL RESIN FILM, AND METHOD FOR MANUFACTURING POLYVINYL ALCOHOL RESIN FILM 有权
公开(公告)号：US20230073770A1
公开(公告)日：2023-03-09
申请号：US17789669
申请日：2021-10-14
申请人： KURARAY CO., LTD.
发明人： Osamu KAZETO , Yasutaka INUBUSHI
IPC分类号： C08F216/06 , C08J5/18
摘要： A PVA film containing PVA that does not increase carbon dioxide existing in the global environment or has a small increase amount even when carbon dioxide is generated by a biodegradation treatment or an incineration treatment. A polyvinyl alcohol resin film having a polyvinyl alcohol resin with an abundance ratio of carbon 14 in total carbon constituting the polyvinyl alcohol resin of 1.0×10−4 or more. A method for discriminating a polyvinyl alcohol resin film, the method including discriminating a polyvinyl alcohol resin film containing a polyvinyl alcohol resin (Ab) in which at least part of the carbon is derived from bio-derived ethylene.

4. 发明申请

US20220348757A1 POLYVINYL ALCOHOL RESIN FILM, METHOD FOR DISCRIMINATING POLYVINYL ALCOHOL RESIN FILM, AND METHOD FOR MANUFACTURING POLYVINYL ALCOHOL RESIN FILM 有权
公开(公告)号：US20220348757A1
公开(公告)日：2022-11-03
申请号：US17868862
申请日：2022-07-20
申请人： KURARAY CO., LTD.
发明人： Osamu KAZETO , Yasutaka INUBUSHI
IPC分类号： C08L29/04 , C08J5/18
摘要： A method for discriminating a polyvinyl alcohol resin film containing a polyvinyl alcohol resin in which all or a part of carbon is derived from bio-derived ethylene from a polyvinyl alcohol resin film containing only a polyvinyl alcohol resin derived only from fossil fuel-derived ethylene by measuring an abundance ratio 14C/C of carbon 14 (14C) in total carbon.

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