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:
Feb. 21, 2017
Filed:
Sep. 25, 2012
Applicant:
Maruzen Petrochemical Co., Ltd., Chuo-ku, JP;
Inventors:
Assignee:
MARUZEN PETROCHEMICAL CO., LTD., Chuo-ku, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D 139/04 (2006.01); G02B 1/12 (2006.01); G02B 1/10 (2015.01); C08F 2/50 (2006.01); C08F 226/12 (2006.01); G02B 1/04 (2006.01); C08F 222/10 (2006.01);
U.S. Cl.
CPC ...
C09D 139/04 (2013.01); C08F 2/50 (2013.01); C08F 222/1006 (2013.01); C08F 226/12 (2013.01); G02B 1/04 (2013.01); G02B 1/10 (2013.01); G02B 1/12 (2013.01);
Abstract
An optical element material which is obtained by curing a resin composition for photoimprinting containing a photocurable monomer (A) of the formula (1) and a photocurable monomer (B) of the formula (2) in a weight ratio of from 30/70 to 87/13, and containing a photopolymerization initiator (C) in a content of from 0.01 to 30 parts by weight per 100 parts by weight of the total weight of the monomer (A) and the monomer (B), and which has a shrinkage on curing of at most 4.5%, and a method for producing it: