公开(公告)号：US20170158830A1

公开(公告)日：2017-06-08

申请号：US15039070

申请日：2014-11-25

Applicant: KURARAY Co., Ltd.

Inventor： Kaori MAEDA ,  Takuya TSUJIMOTO ,  Toru TAKAHASHI

IPC: C08J5/18 ,  B32B27/30 ,  B32B27/08 ,  B32B15/08

CPC classification number: C08J5/18 ,  B32B15/08 ,  B32B27/08 ,  B32B27/308 ,  B32B2307/412 ,  B32B2307/418 ,  B32B2307/536 ,  B32B2307/538 ,  B32B2551/00 ,  C08J2333/12 ,  C08J2453/00 ,  C08L33/10 ,  C08L53/00 ,  C08L2203/16

Abstract: An acrylic resin film comprising 50 to 99 parts by mass of a methacrylic resin (A) comprising not less than 80% by mass of a structural unit derived from methyl methacrylate, and 50 to 1 part by mass of a block copolymer (B) comprising 40 to 90% by mass of methacrylic acid ester polymer block[s] (b1) and 10 to 60% by mass of acrylic acid ester polymer block[s] (b2), provided that the total of the methacrylic resin (A) and the block copolymer (B) is 100 parts by mass, wherein the methacrylic resin (A) and the block copolymer (B) satisfy the inequations (1) and (2): 0.5≦Mw(A)/Mw(b1)≦2.3  (1) 30000≦Mw(b2)≦120000  (2) in which Mw(A) is the weight average molecular weight of the methacrylic resin (A), Mw(b1) is the largest weight average molecular weight among the methacrylic acid ester polymer block[s] (b1) and Mw(b2) is the largest weight average molecular weight among the acrylic acid ester polymer block[s] (b2).

公开(公告)号：US20240417511A1

公开(公告)日：2024-12-19

申请号：US18699015

申请日：2022-09-29

Applicant: KURARAY CO., LTD.

Inventor： Yukihiro TERAMOTO ,  Takuya TSUJIMOTO ,  Hideki KAMADA

IPC: C08G63/06 ,  B29C70/08 ,  B29C70/30 ,  B29C70/54 ,  B29K67/00 ,  D01F6/62

Abstract: Provided is a liquid crystal polyester fiber that suppresses gas generation during heating and has excellent hue. The liquid crystal polyester fiber has a total amount of carboxy end groups (total CEG amount) of 5.0 mEq/kg or less and a ketone bond amount of 0.05 mol % or less. For example, the liquid crystal polyester fiber may have a melting point of 380° C. or lower. In addition, the liquid crystal polyester fiber may have a tenacity of lower than 18 cN/dtex. Moreover, the liquid crystal polyester fiber may contain a liquid crystal polyester having a structural unit derived from 4-hydroxybenzoic acid at a proportion of 50 mol % or more.

公开(公告)号：US20160053062A1

公开(公告)日：2016-02-25

申请号：US14783929

申请日：2014-04-11

Applicant: KURARAY CO., LTD.

Inventor： Kaori MAEDA ,  Takuya TSUJIMOTO ,  Takao HOSHIBA ,  Atsuhiro NAKAHARA

IPC: C08J5/18

CPC classification number: C08J5/18 ,  C08J2333/12 ,  C08L33/12 ,  C08F220/14 ,  C08F220/18

Abstract: An acrylic resin film is obtained by a method comprising bulk-polymerizing methyl methacrylate and an alkyl acrylate ester to obtain an acrylic thermoplastic resin component comprising more than 99% by mass of a methyl methacrylate unit and not more than 1% by mass of an alkyl acrylate ester unit, extruding, through a T-die, a resin composition comprising 70 to 95% by mass of the acrylic thermoplastic resin component and 5 to 30% by mass of a crosslinked rubber particle component, and forming the resultant into a thickness of 20 to 300 μm with no bank.

Abstract translation: 丙烯酸树脂膜是通过将甲基丙烯酸甲酯和丙烯酸烷基酯进行本体聚合而得到的丙烯酸系热塑性树脂成分，其含有甲基丙烯酸甲酯单元99质量％以上1质量％以下的烷基 丙烯酸酯单元，通过T模挤出由丙烯酸系热塑性树脂成分70〜95质量％和交联橡胶粒子成分为5〜30质量％的树脂组合物， 20至300μm，无银行。