US 12,304,984 B2
Composition containing fluorine-containing polymer and crosslinked article
Fumihiro Kamiya, Osaka (JP); and Tsuyoshi Noguchi, Osaka (JP)
Assigned to DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed by DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed on Apr. 8, 2022, as Appl. No. 17/716,529.
Application 17/716,529 is a continuation of application No. PCT/JP2020/038043, filed on Oct. 7, 2020.
Claims priority of application No. 2019-185820 (JP), filed on Oct. 9, 2019.
Prior Publication US 2022/0227909 A1, Jul. 21, 2022
Int. Cl. C08F 214/26 (2006.01); C08K 3/36 (2006.01); C09K 3/10 (2006.01)
CPC C08F 214/262 (2013.01) [C08K 3/36 (2013.01); C09K 3/1009 (2013.01); C08F 2810/20 (2013.01); C09K 2200/0247 (2013.01); C09K 2200/0637 (2013.01)] 4 Claims
 
1. A composition comprising a fluorine-containing polymer, a cross-linking agent, and a silicon oxide represented by formula: SiOx, where 0<x<2, wherein
the fluorine-containing polymer is a fluorine-containing elastomer,
a content of the silicon oxide is 0.1 to 50 parts by mass with respect to 100 parts by mass of the fluorine-containing polymer, and
a constituent ratio of Si in the silicon oxide (Si/(Si+O)), as specified by X-ray photoelectron spectroscopy (ESCA) of the silicon oxide, is 37 to 90 atom %.