US 12,404,403 B2
Polyphenylene ether-based resin composition and molded article
Toru Yamaguchi, Tokyo (JP)
Assigned to ASAHI KASEI KABUSHIKI KAISHA, Tokyo (JP)
Appl. No. 17/756,415
Filed by ASAHI KASEI KABUSHIKI KAISHA, Tokyo (JP)
PCT Filed Nov. 24, 2020, PCT No. PCT/JP2020/043688
§ 371(c)(1), (2) Date May 25, 2022,
PCT Pub. No. WO2021/106879, PCT Pub. Date Jun. 3, 2021.
Claims priority of application No. 2019-217294 (JP), filed on Nov. 29, 2019.
Prior Publication US 2023/0033431 A1, Feb. 2, 2023
Int. Cl. C08L 71/12 (2006.01); C08K 3/00 (2018.01); C08K 3/34 (2006.01); C08K 5/521 (2006.01); C08K 9/06 (2006.01); C08L 53/02 (2006.01)
CPC C08L 71/123 (2013.01) [C08K 3/00 (2013.01); C08K 3/34 (2013.01); C08K 5/521 (2013.01); C08K 9/06 (2013.01); C08L 53/02 (2013.01); C08L 71/12 (2013.01)] 15 Claims
 
1. A polyphenylene ether-based resin composition comprising:
a polyphenylene ether (A);
a styrene-based thermoplastic elastomer (B);
a flame retardant (C); and
a kaolin clay (D),
wherein, when a total content of the (A), (B), (C), and (D) components is taken as 100 mass %, a content of the (A) component is 25 to 84 mass %, a content of the (B) component is 1 to 20 mass %, a content of the (C) component is 4 to 25 mass %, and a content of the (D) component is 11 to 30 mass %, and
the (C) component containsan organophosphorus flame retardant (C-1) having a 10-mass % reduction temperature in a range of 380 to 430° C. as measured by the following measurement method, and an organophosphorus flame retardant (C-2) having a 10-mass % reduction temperature in a range of 330 to 360° C. as measured by the following measurement method:
<Measurement method of the 10-mass % reduction temperature of the (C-1) and (C-2) components>
a 10-mass % reduction temperature is determined from a heating loss curve obtained by weighing out about 10 mg of the (C-1) component or (C-2) component, which is heated from 30° C. to 800° C. at a temperature rise rate of 10° C./min under a nitrogen atmosphere in a TGA measurement apparatus,
wherein the (C) component is a mixture of the (C-1) component and the (C-2) component, and contains 50 to 95 mass % of the (C-1) component and 50 to 5 mass % of the (C-2) component per 100 mass % of the (C) component.