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:
Feb. 03, 2015
Filed:
Oct. 30, 2009
Makoto Yoshitake, Funabashi, JP;
Takashi Sagawa, Ichihara, JP;
Masayoshi Terada, Ichihara, JP;
Dow Corning Toray Co. Ltd., Chiyoda-Ku, Tokyo, JP;
Abstract
A hydrosilylation reaction-curable organopolysiloxane composition comprising (A) a methylpheny-lalkenylpolysiloxane that has at least two alkenyl groups wherein diphenylsiloxane units are no more than 5 mole % and at least 20 mole % is comprised of phenyl groups, (B) a methylphenylhydrogenpolysiloxane that has at least two Si-bonded hydrogen atoms wherein diphenylsiloxane units are no more than 5 mole % and at least 20 mole % is comprised of phenyl groups, and (C) a hydrosilylation reaction catalyst. An optical semiconductor element sealant comprising this composition. An optical semiconductor device sealed with this optical semiconductor element sealant.