The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 18, 2022
Filed:
Dec. 04, 2017
Applicant:
Tosoh Corporation, Shunan, JP;
Inventors:
Yasuyoshi Fujii, Mie, JP;
Saki Ito, Mie, JP;
Assignee:
TOSOH CORPORATION, Shunan, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F 226/06 (2006.01); C08F 212/08 (2006.01); C08F 220/14 (2006.01); C08F 224/00 (2006.01); C08F 226/12 (2006.01); C08L 25/08 (2006.01); C08L 33/10 (2006.01); C08L 37/00 (2006.01); C08L 39/04 (2006.01); C09D 125/08 (2006.01); C09D 133/10 (2006.01); C09D 137/00 (2006.01); C09D 139/04 (2006.01); G02B 1/04 (2006.01); G02B 5/30 (2006.01); G02F 1/13363 (2006.01);
U.S. Cl.
CPC ...
C08F 226/06 (2013.01); C08F 212/08 (2013.01); C08F 220/14 (2013.01); C08F 224/00 (2013.01); C08F 226/12 (2013.01); C08L 25/08 (2013.01); C08L 33/10 (2013.01); C08L 37/00 (2013.01); C08L 39/04 (2013.01); C09D 125/08 (2013.01); C09D 133/10 (2013.01); C09D 137/00 (2013.01); C09D 139/04 (2013.01); G02B 1/04 (2013.01); G02B 5/3083 (2013.01); G02F 1/13363 (2013.01); G02F 2413/13 (2013.01); G02F 2413/14 (2013.01);
Abstract
A novel copolymer suitable for an optical film which is excellent in optical characteristics and has high retardation even in a thin film state, and an optical film containing the same are provided. A copolymer excellent in optical characteristics and easy to form a composite with a different polymer, and an optical film composed of the same are also provided.