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:
Jan. 12, 2016
Filed:
Aug. 04, 2011
Applicants:
Toshimitsu Hiraren, Tsukuba, JP;
Katsuhiro Mori, Tsukuba, JP;
Yasutomo Shimizu, Tsukuba, JP;
Inventors:
Assignee:
Tokuyama Corporation, Yamaguchi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/07 (2006.01); G02B 1/04 (2006.01); C09K 9/02 (2006.01); G02B 5/23 (2006.01);
U.S. Cl.
CPC ...
G02B 1/04 (2013.01); C09K 9/02 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1033 (2013.01); C09K 2211/1088 (2013.01); G02B 5/23 (2013.01);
Abstract
A photochromic composition, which can function as an adhesive layer for bonding optical sheets made from a polycarbonate resin, may include a polyurethane-urea resin (A) obtained by reacting a polyol compound (A1), a polyisocyanate compound (A2) that has two or more isocyanato groups in the molecule, and an amino-containing compound (A3) that contains two or more isocyanato-reactive groups in the molecule, with at least one of the isocyanato-reactive groups being an amino group; and a photochromic compound (B).