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:
May. 23, 2017
Filed:
Dec. 19, 2014
Applicant:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Inventors:
Akinobu Horita, Tokyo, JP;
Yousuke Imagawa, Tokyo, JP;
Teruo Kamura, Tokyo, JP;
Hiroshi Horikoshi, Tokyo, JP;
Assignee:
MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 65/32 (2006.01); G02B 1/04 (2006.01); C08G 75/08 (2006.01); C08L 71/02 (2006.01);
U.S. Cl.
CPC ...
G02B 1/041 (2013.01); C08G 75/08 (2013.01); G02B 1/04 (2013.01);
Abstract
Through an optical material composition containing a compound (a), a compound (b), a polythiol (c) and sulfur (d) according to the present invention, good mold release properties are obtained, and the occurrence of separation mark defects can be suppressed. Compound (a): a compound having the structure represented by formula (1): Compound (b): a compound having the structure represented by formula (2):