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1. (WO2018198830) ADDITION-CURABLE SILICONE RUBBER COMPOSITION

Pub. No.:    WO/2018/198830    International Application No.:    PCT/JP2018/015567
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Sat Apr 14 01:59:59 CEST 2018
IPC: C08L 83/07
C08L 83/04
C08L 83/05
Applicants: SHIN-ETSU CHEMICAL CO., LTD.
信越化学工業株式会社
Inventors: HARA Tatsuei
原 立栄
ASHIDA Ryo
芦田 諒
MIZUSHIMA Hidenori
水嶋 英典
UBUKATA Shigeru
生方 茂
KATO Nobu
加藤 野歩
Title: ADDITION-CURABLE SILICONE RUBBER COMPOSITION
Abstract:
[Problem] The purpose of the present invention is to provide an addition reaction-curable silicone rubber composition which can give a molded article in which oil bleeding properties and mold release properties can be controlled without increasing the added quantity of a bleed oil. [Solution] An addition reaction-curable silicone rubber composition characterized by containing the following components (A) to (D): (A) 100 parts by mass of an organopolysiloxane having at least two silicon atom-bonded alkenyl groups per molecule; (B) 0.2-20 parts by mass of an organohydrogenpolysiloxane having at least two silicon atom-bonded hydrogen atoms per molecule; (C) a catalytic amount of a platinum group metal catalyst; and (D) 1-10 parts by mass of a silicone oil which is represented by general formula (1), which has a monovalent aromatic hydrocarbon group at a quantity of not less than 35 mol.% and less than 50 mol.% relative to the overall quantity of silicon atom-bonded substituent groups, and which has a specified siloxane chain length.