TWO-COMPONENT TYPE ROOM TEMPERATURE FAST-CURING ORGANOPOLYSILOXANE COMPOSITION AND ARTICLE

WIPO Patent Application WO/2022/163436

A1

This two-component type room temperature fast-curing organopolysiloxane composition: includes a first agent containing, at a specific ratio, (A) a specific structure organopolysiloxane having a silanol group or a hydrolyzable silyl group at molecular chain ends thereof, (B) a hydrolyzable organosilane compound and/or a partially hydrolyzed condensate thereof that releases a cyclic ketone compound as a leaving group (leaving substance) by hydrolysis, and (C) a curing catalyst; and a second agent containing, in a specific amount, (A') a specific structure organopolysiloxane having a silanol group at molecular chain ends thereof; and has more excellent hardenability than one-component type room temperature-curing organopolysiloxane compositions. This composition leaves or releases a cyclic ketone compound such as cyclobutanone or cyclopentanone as a leaving group (leaving compound) at the time of curing, and thus solves hazard or safety problems with respect to human bodies or environments.

UTA AKIRA (JP)
SAKAMOTO TAKAFUMI (JP)

PCT/JP2022/001591

August 04, 2022

January 18, 2022

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SHINETSU CHEMICAL CO (JP)

C08K5/17; C08K3/013; C08K3/04; C08K3/22; C08K3/26; C08K3/36; C08K5/5415; C08L83/04; C09D7/61; C09D7/63; C09D183/04; C09K3/10

JP2019073670A	2019-05-16
JP2015113377A	2015-06-22
JP2020517771A	2020-06-18
JP3916403B2	2007-05-16
JP2011037968A	2011-02-24

DATABASE REGISTRY 21 January 1985 (1985-01-21), ANONYMOUS : "Silane, tris(1-cyclopenten-1-yloxy)methyl-(9CI)", XP055935616, retrieved from STN Database accession no. RN 94358-77-7

PATENT PROFESSIONAL CORPORATION EI-MEI PATENT OFFICE (JP)

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