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. 20, 2018
Filed:
Mar. 01, 2016
Applicant:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Inventors:
Kazuki Kariyazono, Osaka, JP;
Takashi Aoki, Osaka, JP;
Assignee:
MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/04 (2006.01); C08G 75/08 (2006.01); C07D 409/12 (2006.01); C08L 41/00 (2006.01); C08G 75/06 (2006.01);
U.S. Cl.
CPC ...
G02B 1/041 (2013.01); C08G 75/06 (2013.01); C08L 41/00 (2013.01);
Abstract
A preferred embodiment of the present invention can provide an optical material composition that includes an episulfide compound that is represented by formula (1) and a polymerizable compound that is different from the episulfide compound that is represented by formula (1). The optical material composition makes it possible to stably and inexpensively store the polymerizable compound and to achieve an optical material that has a favorable hue and that has favorable lightfastness and transparency. (In the formula, m is an integer from 0 to 4, and n is an integer from 0 to 2.)