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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.:

US 10800920 B1

PDFFull Text
Date of Patent:
Oct. 13, 2020

Filed:

Dec. 17, 2018

Curable organopolysiloxane composition

Applicant:

Shin-etsu Chemical Co., Ltd., Tokyo, JP;

Inventor:

Tomoyuki Mizunashi, Annaka, JP;

Assignee:

SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Robert S Loewe

Int. Cl.
CPC ...
C08L 83/04 (2006.01); C08G 77/38 (2006.01); H01L 23/29 (2006.01); C08G 77/52 (2006.01); C08L 83/14 (2006.01); C08G 77/00 (2006.01);
U.S. Cl.
CPC ...
C08L 83/04 (2013.01); C08G 77/38 (2013.01); C08G 77/52 (2013.01); C08G 77/80 (2013.01); C08L 83/14 (2013.01); H01L 23/296 (2013.01); C08L 2203/206 (2013.01);
Abstract

The present invention provides a curable organosilicon resin composition showing excellent optical transparency, curability, heat resistance and light resistance. The present invention also provides a semiconductor device encapsulated with a cured product of such a composition. According to the invention, the curable organopolysiloxane composition comprises: wherein Ris, independently at each occurrence, a monovalent hydrocarbon group having 1 to 10 carbon atoms, and Ris a divalent aromatic group having 6 to 50 carbon atoms and optionally comprising a silylene group or a siloxane linkage, and 10 to 90 mol % of RSiOunit, the organopolysiloxane having a weight average molecular weight (Mw) of from 2,000 to 100,000, as determined by gel permeation chromatography relative to polystyrene standards, and a ratio of the weight average molecular weight (Mw) to the number average molecular weight (Mn) of at least 1.5; and

Find Patent Forward Citations

Mizunashi, Tomoyuki. (2020). Curable organopolysiloxane composition (U.S. Patent No. 10800920). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10800920

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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