ADDITION-CURABLE SILICONE COMPOSITION AND CURED SILICONE RUBBER

Title:

ADDITION-CURABLE SILICONE COMPOSITION AND CURED SILICONE RUBBER

Document Type and Number:

WIPO Patent Application WO/2019/031245

Kind Code:

A1

Abstract:

[Problem] The purpose of the present invention, having considered the state of the art, is to provide an addition curable silicone composition that yields a silicone rubber that has excellent fire resistance, that does not thicken over time from dehydrogenation, and that has excellent storage stability. [Solution] The present invention comprises the following (A)-(E) components: (A) 100 parts by weight of an organopolysiloxane that is a liquid at 25ºC, and has, in one molecule, two or more alkenyl groups bonded to a silicon atom; (B) an organohydrogen polysiloxane that has, in one molecule, two or more hydrogen atoms bonded to a silicon atom, wherein the number of hydrogen atoms bonded to silicon atoms included in the (B) component is such that there are 1-10 hydrogen atoms for every 1 alkenyl group bonded to a silicon atom included in the (A) component; (C) a catalytic amount of a platinum group metal catalyst; (D) 10-100 parts by weight of talc fine powder; and (E) 2-500 moles of 1,2,3-benzotriazole or a derivative thereof for every 1 mole of platinum group metal atoms of the (C) component.

Inventors:

ASHIDA RYO (JP)
SHUDO SHIGEKI (JP)
MIZUSHIMA HIDENORI (JP)

Application Number:

PCT/JP2018/027884

Publication Date:

February 14, 2019

Filing Date:

July 25, 2018

Export Citation:

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Assignee:

SHINETSU CHEMICAL CO (JP)

International Classes:

C08L83/07; C08K3/34; C08K3/36; C08K5/3475; C08L83/05

Foreign References:

JP2006182911A	2006-07-13
JP2016528325A	2016-09-15
JP2017031364A	2017-02-09
JPS6456766A	1989-03-03
JPH09316335A	1997-12-09
JP2004161944A	2004-06-10
JP2014040522A	2014-03-06
JP2016094514A	2016-05-26

Other References: