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.

Date of Patent:
Mar. 03, 2020

Filed:

Jul. 19, 2017
Applicant:

Adeka Corporation, Tokyo, JP;

Inventors:

Yuki Tanaka, Saitama, JP;

Takashi Murakami, Saitama, JP;

Masaki Segawa, Saitama, JP;

Koichiro Abe, Saitama, JP;

Assignee:

ADEKA CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 5/103 (2006.01); G02B 1/08 (2006.01); G02B 5/30 (2006.01); C08L 1/10 (2006.01); C08L 1/12 (2006.01); C08K 5/10 (2006.01); C08K 5/315 (2006.01); C08J 5/18 (2006.01); C08K 5/11 (2006.01); C08K 5/12 (2006.01); G02F 1/13363 (2006.01); C08K 5/01 (2006.01);
U.S. Cl.
CPC ...
G02B 1/08 (2013.01); C08J 5/18 (2013.01); C08K 5/01 (2013.01); C08K 5/10 (2013.01); C08K 5/11 (2013.01); C08K 5/12 (2013.01); C08K 5/315 (2013.01); C08L 1/10 (2013.01); C08L 1/12 (2013.01); G02B 5/305 (2013.01); G02B 5/3083 (2013.01); G02F 1/13363 (2013.01); C08J 2301/12 (2013.01); G02F 2413/11 (2013.01);
Abstract

Provided are: a retardation-increasing agent that has excellent compatibility and, when incorporated into a resin film, is capable of not only adjusting the thickness-direction phase difference toward a positive direction but also imparting the film with high retardation; a cellulose-based resin composition comprising the retardation-increasing agent; and a film that is obtained from the cellulose-based resin composition and has excellent optical properties. The retardation-increasing agent comprises a compound represented by the following Formula (1) or (2):


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