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. 14, 2014
Filed:
Dec. 24, 2010
Applicants:
Takeshi Koike, Yokohama, JP;
Shinichi Komatsu, Yokohama, JP;
Tetsuya Uesaka, Tokyo, JP;
Hisashi Sone, Yokohama, JP;
Yuji Takahashi, Yokohama, JP;
Inventors:
Takeshi Koike, Yokohama, JP;
Shinichi Komatsu, Yokohama, JP;
Tetsuya Uesaka, Tokyo, JP;
Hisashi Sone, Yokohama, JP;
Yuji Takahashi, Yokohama, JP;
Assignee:
JX Nippon Oil & Energy Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 61/06 (2006.01); C09K 19/00 (2006.01); C08F 8/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A retardation film, formed by stretching a film having a norbornene-based ring-opening copolymer containing a structural unit (A) represented by the general formula (1) and a structural unit (B) represented by the general formula (2), wherein the content of structural unity (A) is not less than 5 mol % but not more than 95 mol % relative to the total amount of structural units (A) and (B).