US 11,939,471 B2
Liquid silicone rubber composition
Yusheng Chen, Shanghai (CN); Peng Wang, Shanghai (CN); Shaohui Wang, Shanghai (CN); Rui Wang, Shanghai (CN); Jianjun Gao, Jiangsu (CN); and Chunming Zhang, Jiangsu (CN)
Assigned to DOW SILICONES CORPORATION, Midland, MI (US)
Appl. No. 17/280,444
Filed by DOW SILICONES CORPORATION, Midland, MI (US)
PCT Filed Sep. 27, 2019, PCT No. PCT/CN2019/108345
§ 371(c)(1), (2) Date Mar. 26, 2021,
PCT Pub. No. WO2020/063799, PCT Pub. Date Apr. 2, 2020.
Claims priority of application No. PCT/CN2018/108203 (WO), filed on Sep. 28, 2018.
Prior Publication US 2021/0380807 A1, Dec. 9, 2021
Int. Cl. C08L 83/04 (2006.01); H01B 1/18 (2006.01); C08G 77/12 (2006.01); C08G 77/20 (2006.01)
CPC C08L 83/04 (2013.01) [H01B 1/18 (2013.01); C08G 77/12 (2013.01); C08G 77/20 (2013.01); C08L 2203/20 (2013.01)] 13 Claims
 
1. A conductive liquid silicone rubber composition, the composition comprising:
(a) at least one polydiorganosiloxane having at least two alkenyl groups per molecule;
(b) at least one organohydrogenpolysiloxane;
(c) at least one reinforcing filler present in an amount of from 10 to 25% by weight of the composition;
(d) at least one hydrosilylation catalyst; and
(e) an electrically conductive filler comprising;
(i) extra conductive carbon black present in an amount of from 1.5 to 5.5% by weight of the composition, and
(ii) single walled carbon nanotubes present in an amount of from 0.05 to 1% by weight of the composition.