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:
Sep. 04, 2018
Filed:
Mar. 01, 2016
Applicant:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Inventors:
Assignee:
MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 331/02 (2006.01); C08G 18/76 (2006.01); G02B 1/04 (2006.01); C08G 18/38 (2006.01); C08G 18/32 (2006.01); G02C 7/00 (2006.01); C08G 75/08 (2006.01);
U.S. Cl.
CPC ...
C07D 331/02 (2013.01); C08G 18/3203 (2013.01); C08G 18/3874 (2013.01); C08G 18/7614 (2013.01); C08G 75/08 (2013.01); G02B 1/04 (2013.01); G02B 1/041 (2013.01); G02C 7/00 (2013.01);
Abstract
According to the present invention, it is possible to provide an optical material composition that contains an episulfide compound represented by formula (1) and an episulfide compound represented by formula (2). According to this optical material composition, it is possible to suppress a reduction in the yield rate caused by molding defects, and possible to obtain an optical material having excellent dyeability. (In formula (1), m and p are each an integer between 0 and 4, and n and q are each an integer between 0 and 2.) (In formula (2), m is an integer between 0 and 4 and n is an integer between 0 and 2).