公开(公告)号：US09321870B2

公开(公告)日：2016-04-26

申请号：US14415923

申请日：2013-07-16

Applicant: TOSOH CORPORATION

Inventor： Takahiro Kitagawa ,  Shinsuke Toyomasu ,  Yasuyoshi Fujii

IPC: C08F222/14 ,  G02B5/30 ,  G02B1/08 ,  G02F1/13363

CPC classification number: C08F222/14 ,  C08F220/04 ,  C08F220/10 ,  C08F265/04 ,  C08J5/18 ,  C08J7/047 ,  C08J2333/02 ,  C08J2333/04 ,  C08J2433/04 ,  G02B1/08 ,  G02B5/3083 ,  G02F1/13363 ,  G02F1/133634 ,  G02F2001/133638 ,  C08F220/12 ,  C08F2222/1013 ,  C08F2222/1086

Abstract: To provide a novel diisopropyl fumarate-cinnamic acid derivative-based copolymer expected to be formed into a retardation film having excellent optical properties ensuring that, for example, the refractive index in the film thickness direction and the out-of-plane retardation are large and even in the form of a thin film, the film has a high out-of-plane retardation, and a retardation film using the same. The diisopropyl fumarate-cinnamic acid derivative-based copolymer contains: a diisopropyl fumarate residue unit; and a cinnamic acid residue unit or a cinnamic acid ester residue unit having an alkyl group with a carbon number of 1 to 6.

Abstract translation: 为了提供新型的富马酸二异丙基富马酸酯 - 肉桂酸衍生物共聚物，预期形成为具有优异的光学性质的相位差膜，确保例如膜厚度方向的折射率和面外相位差大， 即使是薄膜的形式，膜也具有高的面外相位差，以及使用该薄膜的延迟膜。 富马酸二异丙酯 - 肉桂酸衍生物共聚物含有：富马酸二异丙酯残基; 和具有碳数为1至6的烷基的肉桂酸残基单元或肉桂酸酯残基单元。

公开(公告)号：US09932488B2

公开(公告)日：2018-04-03

申请号：US14895360

申请日：2014-06-04

Applicant: TOSOH CORPORATION

Inventor： Masayasu Ito ,  Shinsuke Toyomasu ,  Takahiro Kitagawa

IPC: C08L1/26 ,  C08L1/28 ,  C08L35/02 ,  C09D101/28 ,  C08J5/18 ,  C08J7/04 ,  G02B5/30 ,  C08L35/00

CPC classification number: C09D101/28 ,  C08J5/18 ,  C08J7/047 ,  C08J2301/26 ,  C08J2301/28 ,  C08J2331/06 ,  C08J2367/02 ,  C08J2401/26 ,  C08J2431/06 ,  C08J2435/02 ,  C08L1/26 ,  C08L35/00 ,  C08L35/02 ,  G02B5/3083 ,  C08L1/28

Abstract: A resin composition including from 30 to 99 wt % of a cellulose-based resin represented by the following formula (1) and from 70 to 1 wt % of a fumaric acid ester polymer containing 30 mol % or more of a fumaric acid diester residue unit represented by the following formula (2); an optical compensation film using the same; and a production method of the optical compensation film. (wherein R1 to R3 represent a substituent having a carbon number of 1 to 12, and R4 and R5 represent an alkyl group having a carbon number of 1 to 12).

公开(公告)号：US20150232599A1

公开(公告)日：2015-08-20

申请号：US14415923

申请日：2013-07-16

Applicant: TOSOH CORPORATION

Inventor： Takahiro Kitagawa ,  Shinsuke Toyomasu ,  Yasuyoshi Fujii

IPC: C08F222/14 ,  G02B1/08 ,  G02F1/13363 ,  G02B5/30

CPC classification number: C08F222/14 ,  C08F220/04 ,  C08F220/10 ,  C08F265/04 ,  C08J5/18 ,  C08J7/047 ,  C08J2333/02 ,  C08J2333/04 ,  C08J2433/04 ,  G02B1/08 ,  G02B5/3083 ,  G02F1/13363 ,  G02F1/133634 ,  G02F2001/133638 ,  C08F220/12 ,  C08F2222/1013 ,  C08F2222/1086

Abstract: To provide a novel diisopropyl fumarate-cinnamic acid derivative-based copolymer expected to be formed into a retardation film having excellent optical properties ensuring that, for example, the refractive index in the film thickness direction and the out-of-plane retardation are large and even in the form of a thin film, the film has a high out-of-plane retardation, and a retardation film using the same. The diisopropyl fumarate-cinnamic acid derivative-based copolymer contains: a diisopropyl fumarate residue unit; and a cinnamic acid residue unit or a cinnamic acid ester residue unit having an alkyl group with a carbon number of 1 to 6.

Abstract translation: 为了提供新型的富马酸二异丙基富马酸酯 - 肉桂酸衍生物共聚物，预期形成为具有优异的光学性质的相位差膜，确保例如膜厚度方向的折射率和面外相位差大， 即使是薄膜的形式，膜也具有高的面外相位差，以及使用该薄膜的延迟膜。 富马酸二异丙酯 - 肉桂酸衍生物共聚物含有：富马酸二异丙酯残基; 和具有碳数为1至6的烷基的肉桂酸残基单元或肉桂酸酯残基单元。