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:
Nov. 07, 2023
Filed:
Jun. 11, 2018
Applicant:
Tokuyama Corporation, Yamaguchi, JP;
Inventors:
Assignee:
Tokuyama Corporation, Yamaguchi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 175/04 (2006.01); G02B 1/14 (2015.01); C09D 7/63 (2018.01); C08G 18/12 (2006.01); C08G 18/32 (2006.01); C08G 18/48 (2006.01); C08G 18/66 (2006.01); C08G 18/76 (2006.01); C09D 5/32 (2006.01); G02B 1/04 (2006.01); G02C 7/10 (2006.01);
U.S. Cl.
CPC ...
C09D 175/04 (2013.01); C08G 18/12 (2013.01); C08G 18/3206 (2013.01); C08G 18/4854 (2013.01); C08G 18/6611 (2013.01); C08G 18/7621 (2013.01); C09D 5/32 (2013.01); C09D 7/63 (2018.01); G02B 1/04 (2013.01); G02B 1/14 (2015.01); G02C 7/104 (2013.01); G02C 2202/16 (2013.01);
Abstract
A primer composition for optical articles includes (A) a urethane prepolymer which is a reaction product of an aromatic polyisocyanate compound and a polyol compound, and which has a reactive group at an end, the reactive group being selected from among an isocyanate group and a hydroxyl group, (B) a light absorbing compound which has a maximum absorption wavelength within the range of from 320 nm to 650 nm (inclusive) and (C) an organic solvent which has a solubility parameter of 8 (cal/cm)or more, while containing no active hydrogen.