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:
Sep. 19, 2017
Filed:
Jan. 20, 2015
Applicant:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Inventors:
Gaku Yoshikawa, Osaka, JP;
Masayuki Takashima, Osaka, JP;
Assignee:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08G 77/08 (2006.01); C08G 77/18 (2006.01); C08L 83/04 (2006.01); H01L 33/56 (2010.01); C08G 77/04 (2006.01);
U.S. Cl.
CPC ...
C08G 77/18 (2013.01); C08G 77/08 (2013.01); C08L 83/04 (2013.01); H01L 33/56 (2013.01); C08G 77/045 (2013.01); C08G 2190/00 (2013.01); H01L 2933/005 (2013.01);
Abstract
A phosphoric acid-based catalyst is used as a cure accelerator for a polysilsesquioxane-based UV-LED-encapsulating material, a cured product of which has a light transmittance of 65% or more at 260 nm. A polysilsesquioxane-based UV-LED-encapsulating material composition contains a polysilsesquioxane-based UV-LED-encapsulating material and a phosphoric acid-based catalyst.