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:
Dec. 09, 2014
Filed:
Aug. 06, 2009
Agnès Pottier, Paris, FR;
Kyu-min Hwang, Seoul, KR;
Minoru Igarashi, Gunma-ken, JP;
Tsutomu Nakamura, Gunma-ken, JP;
Nahohiko Harada, Kanagawa-ken, JP;
Agnès Pottier, Paris, FR;
Kyu-Min Hwang, Seoul, KR;
Minoru Igarashi, Gunma-ken, JP;
Tsutomu Nakamura, Gunma-ken, JP;
Nahohiko Harada, Kanagawa-ken, JP;
Rhodia Chimie, Aubervilliers, FR;
Shin-Etsu Chemical Co., Ltd, Tokyo, JP;
Abstract
The invention relates to the use of a precipitated silica, pretreated by at least one organosilane hydrophobic compound or one hydrophobic silicone oil, as a reinforcing filler for silicone elastomer, the pretreated silica being incorporated in the silicone elastomer by cold mixing and having the following features: —a BET specific surface ranging from 50 to 450 m/g, —a water wettability lower than 80, —a sulfur content lower than 0.1% by weight. The invention is directed to the curable silicone elastomer composition thus obtained.