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:
Nov. 04, 2014
Filed:
Aug. 13, 2007
Applicants:
Noriyuki Kato, Tokyo, JP;
Kunitoshi Mimura, Tokyo, JP;
Inventors:
Noriyuki Kato, Tokyo, JP;
Kunitoshi Mimura, Tokyo, JP;
Assignee:
Mitsubishi Gas Chemical Company, Inc, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 27/28 (2006.01); G02B 5/30 (2006.01); C08G 64/02 (2006.01); G02F 1/13363 (2006.01);
U.S. Cl.
CPC ...
C08G 64/0208 (2013.01); G02B 5/305 (2013.01); G02F 1/13363 (2013.01);
Abstract
According to the present invention, a polycarbonate resin having a repeat unit represented by the following formula (1) and a repeat unit represented by the following general formula (2), and an optical film using the same, can be provided. In the formula, Y is a cycloalkylene group having a carbon number of 4 through 20 or a structure represented by the following general formula (3). In the general formula (3), R, R, Rand Rare independently a hydrogen atom or a monovalent alkyl group having a carbon number of 1 through 5.