	US 12,083,709 B2
	Compositions for bipolar plates and methods for manufacturing said compositions
Stéphane Bizet, Serquigny (FR); and Jérôme Chauveau, Serquigny (FR)
Assigned to Arkema France, Colombes (FR)
Appl. No. 17/277,371
Filed by Arkema France, Colombes (FR)
PCT Filed Sep. 18, 2019, PCT No. PCT/FR2019/052175 § 371(c)(1), (2) Date Mar. 18, 2021, PCT Pub. No. WO2020/058627, PCT Pub. Date Mar. 26, 2020.
Claims priority of application No. 1858598 (FR), filed on Sep. 21, 2018.
Prior Publication US 2021/0354332 A1, Nov. 18, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. B29B 9/12 (2006.01); B29B 9/02 (2006.01); B29C 43/00 (2006.01); B29C 45/00 (2006.01); B29K 23/00 (2006.01); B29K 81/00 (2006.01); B29K 507/04 (2006.01); B29K 509/00 (2006.01); H01M 8/0226 (2016.01); H01M 50/406 (2021.01); H01M 50/446 (2021.01)

CPC B29B 9/12 (2013.01) [B29B 9/02 (2013.01); B29C 43/003 (2013.01); B29C 45/0001 (2013.01); B29C 45/0013 (2013.01); B29K 2023/06 (2013.01); B29K 2023/12 (2013.01); B29K 2081/04 (2013.01); B29K 2507/04 (2013.01); B29K 2509/00 (2013.01); B29K 2995/0005 (2013.01); H01M 8/0226 (2013.01); H01M 50/406 (2021.01); H01M 50/446 (2021.01)]

8 Claims

1. A process for manufacturing a composition, comprising the following steps:

mixing a molten thermoplastic polymer with a first conductive filler so as to obtain a conductive thermoplastic polymer;

milling said conductive thermoplastic polymer to reduce it to powder having a volume-mean diameter (Dv50) ranging from 0.1 μm to 1 mm;

mixing the conductive thermoplastic polymer powder with a second conductive filler,

wherein the first conductive filler comprises from 5% to 15% by weight, based on the weight of said conductive thermoplastic polymer.