公开(公告)号：US20170010390A1

公开(公告)日：2017-01-12

申请号：US15113736

申请日：2015-01-23

Applicant: KURARAY CO., LTD.

Inventor： Atsuhiro NAKAHARA ,  Toru ABE ,  Yusaku NOMOTO ,  Wataru TSUJI ,  Yuuki TAKASUKA ,  Takao HOSHIBA

IPC: G02B1/14 ,  G02B5/30 ,  C08J5/18

CPC classification number: G02B1/14 ,  C08J5/18 ,  C08J2333/12 ,  C08J2469/00 ,  C08L33/12 ,  C08L69/00 ,  G02B5/3033

Abstract: A film obtained by molding a methacrylic resin composition, the methacrylic resin composition comprises: a methacrylic resin having a triad syndiotacticity (rr) of not less than 50% and a weight average molecular weight of 80000 to 200000 and comprising not less than 92% by mass of a structural unit derived from methyl methacrylate, and a polycarbonate resin having an MVR of 130 to 250 cm3/20 min at 300° C. and 1.2 Kg, in which a mass ratio of the methacrylic resin to the polycarbonate resin is 91/9 to 99/1, and the total content of the methacrylic resin and the polycarbonate resin is 80 to 100% by mass. The film is layered to at least one surface of a polarizer to give a polarizing plate.

Abstract translation: 通过成型甲基丙烯酸系树脂组合物而获得的薄膜，所述甲基丙烯酸系树脂组合物包含：具有三元组间同立构规整度（rr）为50％以上且重均分子量为80000〜200000且包含不小于92％ 衍生自甲基丙烯酸甲酯的结构单元的质量和在300℃下具有130至250cm 3 / 20min的MVR和1.2Kg的聚碳酸酯树脂，其中甲基丙烯酸树脂与聚碳酸酯树脂的质量比为91 / 9〜99/1，甲基丙烯酸系树脂和聚碳酸酯树脂的总含量为80〜100质量％。 将膜分层至偏振片的至少一个表面，得到偏振片。

公开(公告)号：US20170313834A1

公开(公告)日：2017-11-02

申请号：US15526204

申请日：2015-11-11

Applicant: KURARAY CO., LTD.

Inventor： Nobutaka HIRAOKA ,  Toru ABE ,  Atsuhiro NAKAHARA ,  Yuuki TAKASUKA ,  Masayasu OGUSHI

IPC: C08J5/18 ,  G02B1/10 ,  C08L33/10

CPC classification number: C08J5/18 ,  C08J2333/10 ,  C08J2463/00 ,  C08J2469/00 ,  C08L33/10 ,  C08L69/00 ,  C08L71/10 ,  G02B1/10

Abstract: A methacrylate resin composition containing a methacrylate resin and a phenoxy resin and a film consisting of the same, each having high transparency, small phase differences in a thickness direction, low heat shrinkage rate, high strength and good adhesion properties are provided. The methacrylate resin composition contains a methacrylate resin with a triad syndiotacticity (rr) of equal to or more than 58% and a phenoxy resin, and the content of the phenoxy resin per 100 parts by mass of the methacrylate resin is in a range of 0.1 to 8 parts by mass, and the total content of the methacrylate resin and phenoxy resin is 80 mass % or more.

公开(公告)号：US20210394493A1

公开(公告)日：2021-12-23

申请号：US17279167

申请日：2019-09-26

Applicant: KURARAY CO., LTD.

Inventor： Yuuki TAKASUKA ,  Atsushi NAGASAWA ,  Hirotaka YASUDA ,  Koichiro ISOUE

IPC: B32B17/10 ,  B32B7/023 ,  B29C43/00 ,  B29C43/02 ,  C09J129/04

Abstract: An intermediate laminate having a first adhesive layer and a first cross-linked cured resin layer laminated directly with no other layer interposed therebetween, the first adhesive layer having a polyvinyl acetal resin and/or an ionomer resin.