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.

Date of Patent:
May. 12, 2020

Filed:

Oct. 07, 2016
Applicant:

Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;

Inventors:

Kousuke Namiki, Tokyo, JP;

Yousuke Imagawa, Tokyo, JP;

Eiji Koshiishi, Tokyo, JP;

Kikuo Furukawa, Tokyo, JP;

Hiroshi Horikoshi, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 75/08 (2006.01); G02B 1/04 (2006.01); C08G 75/06 (2006.01); C08J 3/28 (2006.01);
U.S. Cl.
CPC ...
C08G 75/08 (2013.01); C08G 75/06 (2013.01); C08J 3/28 (2013.01); G02B 1/04 (2013.01); C08J 2381/02 (2013.01);
Abstract

According to the present invention, it is possible to provide a photocurable composition which comprises a cyclic compound (a) represented by formula (1), an episulfide compound (b), and a photopolymerization initiator (c). In a preferred embodiment, the proportion of the cyclic compound (a) in the photocurable composition is 5-80 mass %, the proportion of the episulfide compound (b) is 20-95 mass %, and the proportion of the photopolymerization initiator (c) is 0.1-10 parts by mass per 100 parts by mass of the sum of the cyclic compound (a) and the episulfide compound (b). In the formula, C represents a carbon atom, X represents S, Se, or Te, and a to f are integers of 0-3, provided that 8≥(a+c+e)≥1, 8≥(b+d+f)≥2, and (b+d+f)≥(a+c+e).


Find Patent Forward Citations

Namiki, Kousuke. (2020). Photocurable composition and optical material (U.S. Patent No. 10647819). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10647819

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