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:
Dec. 19, 2017
Filed:
Aug. 01, 2014
Applicant:
Mitsui Chemicals, Inc., Minato-ku, Tokyo, JP;
Inventor:
Akinori Ryu, Arao, JP;
Assignee:
MITSUI CHEMICALS, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/23 (2006.01); C08F 290/06 (2006.01); C09K 9/02 (2006.01); G02C 7/10 (2006.01); C08F 212/34 (2006.01); G02B 1/04 (2006.01);
U.S. Cl.
CPC ...
C08F 290/06 (2013.01); C08F 212/34 (2013.01); C09K 9/02 (2013.01); G02B 1/041 (2013.01); G02B 5/23 (2013.01); G02C 7/102 (2013.01); G02B 1/04 (2013.01);
Abstract
A polymerizable composition for photochromic optical materials of the present invention includes a polymerizable monomer (A) having two or more ethylene-based unsaturated groups, an ethylene-based unsaturated polymerizable monomer (B) having one (meth)acrylic group and an aromatic ring, a polythiol (C) having three or more mercapto groups, and a photochromic compound (D), and the molar number of the mercapto groups included in the polythiol (C) is not more than 0.3 times with respect to the total molar number of the ethylene-based unsaturated groups included in the polymerizable monomer (A) and the polymerizable monomer (B).