US 12,071,543 B2
Hydrosilylation cure inhibitors and use thereof
Patrick Beyer, Wiesbaden (DE); Michael Backer, Wiesbaden (DE); and Tomoko Tasaki, Ichihara (JP)
Assigned to Dow Silicones Corporation, Midland, MI (US); and Dow Toray Co., Ltd., Tokyo (JP)
Appl. No. 18/038,826
Filed by Dow Silicones Corporation, Midland, MI (US); and Dow Toray Co., Ltd., Tokyo (JP)
PCT Filed Nov. 23, 2021, PCT No. PCT/US2021/060443
§ 371(c)(1), (2) Date May 25, 2023,
PCT Pub. No. WO2022/115397, PCT Pub. Date Jun. 2, 2022.
Claims priority of provisional application 63/119,152, filed on Nov. 30, 2020.
Prior Publication US 2023/0392012 A1, Dec. 7, 2023
Int. Cl. C08L 83/04 (2006.01); B29C 64/106 (2017.01); C08G 77/08 (2006.01); C08G 77/12 (2006.01); C08G 77/20 (2006.01); C09D 183/04 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01)
CPC C08L 83/04 (2013.01) [B29C 64/106 (2017.08); C08G 77/08 (2013.01); C08G 77/12 (2013.01); C08G 77/20 (2013.01); C09D 183/04 (2013.01); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); C08L 2312/08 (2013.01)] 10 Claims
 
1. A hydrosilylation curable silicone composition comprising:
(A) one or more polyorganosiloxanes containing at least two unsaturated groups per molecule, which unsaturated groups are selected from alkenyl and alkynyl groups and having a viscosity in a range of 1,000 to 200,000 mPa·s at 25° C.;
(B) a polyorganosiloxane containing at least two, or optionally at least three, terminal silicon bonded hydrogen groups;
(C) at least one hydrosilylation catalyst; and
(D) a hydrosilylation cure inhibitor comprising di(trimethylolpropane) tetraacrylate.