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:
Apr. 17, 2012
Filed:
Nov. 30, 2009
Shinji Kimura, Annaka, JP;
Shinji Kimura, Annaka, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
Provided is an addition-curable silicone composition including A: a diorganopolysiloxane having a structure represented by a formula (1): (R)(R)SiO((Ar)SiO)Si(R)(R) (where Rrepresents an aliphatic unsaturated group, Rrepresents identical or different, unsubstituted or substituted monovalent hydrocarbon groups, Ar represents identical or different, unsubstituted or substituted aryl groups that may or may not contain a hetero atom, and n represents an integer of 1 or greater), B: an organosilicon compound containing at least two hydrogen atoms bonded to silicon atoms per molecule, and containing no aliphatic unsaturated groups, in an amount that is sufficient to cure the composition in the presence of the hydrosilylation catalyst described below, and C: a platinum group metal-based hydrosilylation catalyst. A cured product of this addition-curable silicone composition has superior transparency, a high refractive index, and favorable strength properties, and the composition can therefore be used as an optical element encapsulating material.