US 12,258,496 B2
Curable silicone composition, cured product of same and method for producing same
Ryosuke Yamazaki, Ichihara (JP); Kouichi Ozaki, Ichihara (JP); and Toru Imaizumi, Ichihara (JP)
Assigned to DOW TORAY CO., LTD., Tokyo (JP)
Appl. No. 17/442,654
Filed by DOW TORAY CO., LTD., Tokyo (JP)
PCT Filed Mar. 18, 2020, PCT No. PCT/JP2020/012028
§ 371(c)(1), (2) Date Sep. 24, 2021,
PCT Pub. No. WO2020/203305, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 2019-066555 (JP), filed on Mar. 29, 2019.
Prior Publication US 2022/0186099 A1, Jun. 16, 2022
Int. Cl. C09J 183/04 (2006.01); B29C 45/00 (2006.01); B29K 83/00 (2006.01); B32B 7/06 (2019.01); B32B 7/12 (2006.01); C08L 83/04 (2006.01); C09J 5/06 (2006.01); C09J 7/35 (2018.01); C09J 11/04 (2006.01); H01L 23/29 (2006.01)
CPC C09J 183/04 (2013.01) [B32B 7/06 (2013.01); B32B 7/12 (2013.01); C08L 83/04 (2013.01); C09J 5/06 (2013.01); C09J 7/35 (2018.01); C09J 11/04 (2013.01); B29C 45/0001 (2013.01); B29K 2083/00 (2013.01); B32B 2457/14 (2013.01); C08L 2203/20 (2013.01); C08L 2205/035 (2013.01); C09J 2203/326 (2013.01); C09J 2483/00 (2013.01); H01L 23/29 (2013.01)] 16 Claims
 
1. A curable silicone composition having hot-melt properties, comprising:
(A) an organopolysiloxane resin component having a weight average molecular weight (Mw) in the range of 2,000 to 15,000 as measured by gel permeation chromatography (GPC) using toluene as a solvent, where 20 mol % or more of the total siloxane units of the organopolysiloxane resin component is siloxane units represented by SiO4/2; and
D) one or more functional fillers;
wherein the organopolysiloxane resin component comprises a curing reactive functional group containing a carbon-carbon double bond and, of that curing reactive functional group, 0.05 to 1.50 mol vinyl (CH2═CH—) group is contained per 100 g of silicone component in the composition.