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:
Aug. 22, 2023
Filed:
Nov. 25, 2020
Applicant:
Dow Silicones Corporation, Midland, MI (US);
Inventors:
Gyuyoung Lee, Chungcheongbuk-do, KR;
Juyoung Yook, Chungcheongbuk-do, KR;
Assignee:
DOW SILICONES CORPORATION, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/46 (2006.01); C08F 2/50 (2006.01); C08G 61/04 (2006.01); C08L 83/04 (2006.01); C08G 77/20 (2006.01); C08G 77/28 (2006.01); C08K 5/00 (2006.01); C08J 3/24 (2006.01); C08K 3/36 (2006.01);
U.S. Cl.
CPC ...
C08L 83/04 (2013.01); C08G 77/20 (2013.01); C08G 77/28 (2013.01); C08J 3/248 (2013.01); C08K 3/36 (2013.01); C08K 5/0041 (2013.01); C08K 2201/006 (2013.01); C08L 2205/02 (2013.01); C08L 2312/06 (2013.01);
Abstract
A photocurable silicone composition is disclosed. The composition comprises 4,5,6,7-tetrachloro-3',6′-dihydroxy-2′,4′,5′,7′-tetraiodospiro[2-benzofuran-3,9′-xanthen]-1-one as a photochromic pigment. The photochromic pigment is present in an amount of from about 0.001 to about 0.05 mass % of a total amount of the composition. The composition can indicate a cure point thereof by disappearance of color.