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:
Jun. 13, 2017
Filed:
Nov. 01, 2013
Applicant:
Mitsui Chemicals, Inc., Minato-ku, Tokyo, JP;
Inventors:
Nobuo Kawato, Kurume, JP;
Tatsuya Ogawa, Ravenna, IT;
Toshiya Hashimoto, Ichihara, JP;
Mamoru Tanaka, Fukuoka, JP;
Shigetoshi Kuma, Kurume, JP;
Assignee:
MITSUI CHEMICALS, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 5/521 (2006.01); G02B 1/04 (2006.01); C08G 18/48 (2006.01); C08G 18/76 (2006.01); C08G 18/32 (2006.01); C08G 18/38 (2006.01); B29C 39/10 (2006.01); B29D 11/00 (2006.01); G02B 5/30 (2006.01); C08K 5/3435 (2006.01); B29K 75/00 (2006.01); B29K 105/24 (2006.01); B29K 105/00 (2006.01);
U.S. Cl.
CPC ...
G02B 1/041 (2013.01); B29C 39/10 (2013.01); B29D 11/00009 (2013.01); C08G 18/3206 (2013.01); C08G 18/3885 (2013.01); C08G 18/4833 (2013.01); C08G 18/7621 (2013.01); C08K 5/3435 (2013.01); C08K 5/521 (2013.01); G02B 1/043 (2013.01); G02B 5/3033 (2013.01); B29K 2075/00 (2013.01); B29K 2105/24 (2013.01); B29K 2105/256 (2013.01);
Abstract
A polymerizable composition for an optical material includes: (A) one or more isocyanates having two or more isocyanato groups that contains an aromatic isocyanate; (B) one or more alcohols having two or more hydroxyl groups; and (C) an acid phosphate represented by the following formula (1), in which a ratio of the molar number of a secondary hydroxyl group to the total molar number of primary and secondary hydroxyl groups contained in the alcohol (B) is 50% or higher.