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:
Jun. 27, 2017
Filed:
Oct. 08, 2014
Dow Corning Toray Co., Ltd., Toyko, JP;
Yusuke Miyamoto, Fuchu, JP;
DOW CORNING TORAY CO., LTD., Chiyoda-Ku, Tokyo, JP;
Abstract
The present invention provides a hydrosilylation curable silicone composition for forming a cured product which inhibits the discoloration of silver electrodes or a silver-plated substrate in an optical semiconductor device due to a sulfur-containing gas in the air, and for sealing, covering, or adhering an optical semiconductor element, the curable silicone composition comprising: (A) an organopolysiloxane having at least two silicon-bonded alkenyl groups per molecule; (B) an organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms per molecule; (C) a tetrazole-based compound; and (D) a hydrosilylation reaction catalyst. In addition, the present invention provides an optical semiconductor device in which an optical semiconductor element is sealed, covered, or adhered by the cured product of the composition so that the discoloration of silver electrodes or a silver-plated substrate due to a sulfur-containing gas in the air is inhibited.