公开(公告)号：US09512284B2

公开(公告)日：2016-12-06

申请号：US14647715

申请日：2013-11-25

Applicant: TOSOH CORPORATION

Inventor： Takahiro Kitagawa ,  Tohru Doi ,  Yasuyoshi Fujii ,  Kota Sakaguchi ,  Akira Inui ,  Masayasu Ito

IPC: C08J5/18 ,  C08F222/14 ,  C09D133/14 ,  C08F265/04

CPC classification number: C08J5/18 ,  C08F222/14 ,  C08F265/04 ,  C08J2333/04 ,  C08J2333/06 ,  C08J2333/08 ,  C09D133/14 ,  C08F220/12 ,  C08F2222/1013 ,  C08F2222/1086 ,  C08F212/36

Abstract: To provide a novel fumaric acid diester-cinnamic acid ester-based copolymer having a high molecular weight, which is expected to maintain excellent strength or ensures excellent toughness even when formed into a film, a method for efficiently producing the copolymer, and a film using the same. The fumaric acid diester-cinnamic acid ester-based copolymer contains a fumaric acid diester residue unit, a cinnamic acid ester residue unit having an alkyl group with a carbon number of 1 to 6, and a residue unit of a polyfunctional monomer having two or more radical polymerizable functional groups.

Abstract translation: 提供具有高分子量的新型富马酸二酯 - 肉桂酸酯系共聚物，即使在成膜时也能保持优异的强度或确保优异的韧性，有效制造共聚物的方法和使用 一样。 富马酸二酯 - 肉桂酸酯系共聚物含有富马酸二酯残基单元，碳数为1〜6的烷基的肉桂酸酯残基单元和具有2个以上的多官能单体的残基单元 可自由基聚合的官能团。

公开(公告)号：US10126478B2

公开(公告)日：2018-11-13

申请号：US15519403

申请日：2015-10-13

Applicant: TOSOH CORPORATION

Inventor： Masayasu Ito ,  Takahiro Kitagawa ,  Takuya Komine ,  Kaori Suyama

IPC: G02B5/30 ,  G02F1/13363 ,  C08L33/02 ,  C08L35/00 ,  C08L1/28 ,  C08J5/18

Abstract: A resin composition suitable for an optical compensation film, an optical compensation film using the same, which is excellent in the retardation characteristics and wavelength dispersion characteristics, and a production method of an optical compensation film. A resin composition containing, as resin components, from 30 to 99 wt % of a cellulose-based resin represented by the following formula (1) and from 1 to 70 wt % of a cinnamic acid ester copolymer: where each of R1, R2 and R3 independently represents hydrogen or a substituent having a carbon number of 1 to 12.

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：US20150291751A1

公开(公告)日：2015-10-15

申请号：US14647715

申请日：2013-11-25

Applicant: TOSOH CORPORATION

Inventor： Takahiro Kitagawa ,  Tohru Doi ,  Yasuyoshi Fujii ,  Kota Sakaguchi ,  Akira Inui ,  Masayasu Ito

IPC: C08J5/18

CPC classification number: C08J5/18 ,  C08F222/14 ,  C08F265/04 ,  C08J2333/04 ,  C08J2333/06 ,  C08J2333/08 ,  C09D133/14 ,  C08F220/12 ,  C08F2222/1013 ,  C08F2222/1086 ,  C08F212/36

Abstract: To provide a novel fumaric acid diester-cinnamic acid ester-based copolymer having a high molecular weight, which is expected to maintain excellent strength or ensures excellent toughness even when formed into a film, a method for efficiently producing the copolymer, and a film using the same. The fumaric acid diester-cinnamic acid ester-based copolymer contains a fumaric acid diester residue unit, a cinnamic acid ester residue unit having an alkyl group with a carbon number of 1 to 6, and a residue unit of a polyfunctional monomer having two or more radical polymerizable functional groups.

Abstract translation: 提供具有高分子量的新型富马酸二酯 - 肉桂酸酯系共聚物，即使在成膜时也能保持优异的强度或确保优异的韧性，有效制造共聚物的方法和使用 一样。 富马酸二酯 - 肉桂酸酯系共聚物含有富马酸二酯残基单元，碳数为1〜6的烷基的肉桂酸酯残基单元和具有2个以上的多官能单体的残基单元 可自由基聚合的官能团。