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:
Aug. 02, 2022
Filed:
Apr. 13, 2018
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Tatsuei Hara, Annaka, JP;
Ryo Ashida, Annaka, JP;
Hidenori Mizushima, Annaka, JP;
Shigeru Ubukata, Annaka, JP;
Nobu Kato, Annaka, JP;
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Abstract
The purpose of the present invention is to provide an addition-curable silicone rubber composition which gives a cured product having a controlled oil-bleeding property and releasability from a mold, without increasing an amount of a bleeding oil to be added. Thus, the present invention provides an addition-curable silicone rubber composition comprising the following components (A) to (D): wherein Ris, independently of each other, an unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, Ris, independently of each other, a monovalent aromatic hydrocarbon group having 6 to 12 carbon atoms, the amount of the monovalent aromatic hydrocarbon group is at least 35 mol % and less than 50 mol %, relative to a total amount of all substituents each bonded to a silicon atom, that is, all of Rand R, m is an integer of from 0 to 3, m' is an integer of from 0 to 3, n′ is an integer of from 0 to 3, n is an integer of from 10 to 20, and m+m′+n+n′ is in a range of from 10 to 22.