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:
Apr. 02, 2024
Filed:
Aug. 01, 2019
Applicant:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Inventors:
Kouhei Takemura, Tokyo, JP;
Hiroshi Horikoshi, Tokyo, JP;
Assignee:
MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 331/02 (2006.01); C08G 75/08 (2006.01); G02B 1/04 (2006.01);
U.S. Cl.
CPC ...
C07D 331/02 (2013.01); C08G 75/08 (2013.01); G02B 1/041 (2013.01);
Abstract
The present invention makes it possible to provide a compound represented by formula (1) and a composition for an optical material containing this compound. (Where m+n=4, m represents an integer of from 0 to 3, and n represents an integer of from 1 to 4.) In addition, the present invention makes it possible to provide a method for producing an optical material, the method including a step for adding 0.0001-10 parts by mass of a polymerization catalyst per 100 parts by mass of the composition for an optical material, polymerizing, and curing.