	US 12,247,123 B2
	Polymeric compositions with high dielectric constant and low dielectric loss
Yunfeng Jiao, Shanghai (CN)
Assigned to Celanese Polymers Holding, Inc., Wilmington, DE (US)
Appl. No. 17/414,890
Filed by Celanese Polymers Holding, Inc, Wilmington, DE (US)
PCT Filed Oct. 22, 2019, PCT No. PCT/US2019/057312 § 371(c)(1), (2) Date Jun. 16, 2021, PCT Pub. No. WO2020/131212, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 201811541150.8 (CN), filed on Dec. 17, 2018.
Prior Publication US 2022/0056267 A1, Feb. 24, 2022
Int. Cl. C08L 77/06 (2006.01); C08K 3/04 (2006.01); C08K 3/36 (2006.01)

CPC C08L 77/06 (2013.01) [C08K 3/042 (2017.05); C08K 3/36 (2013.01); C08K 2201/003 (2013.01); C08K 2201/005 (2013.01); C08L 2203/20 (2013.01)]

15 Claims

1. A polymeric composition comprising: a) at least one thermoplastic polymer; and b) 2 to 30 wt % graphite flakes that are coated with silica coating particles, with the total weight of the composition totaling to 100 wt %, wherein, the coated graphite flakes have a weight ratio of C:Si ranging from 10:1 to 4:1, and the silica coating particles have an average diameter of 80 to 400 nm, wherein the at least one thermoplastic polymer comprises a polyamide.