US 12,234,349 B2
Semiconductive polymer composition
Daniel Nilsson, Stenungsund (SE); Niklas Thorn, Stenungsund (SE); Annika Smedberg, Stenungsund (SE); and Fredrik Skogman, Karlskrona (SE)
Assigned to Borealis AG, Vienna (AT)
Appl. No. 17/640,559
Filed by BOREALIS AG, Vienna (AT)
PCT Filed Sep. 14, 2020, PCT No. PCT/EP2020/075661
§ 371(c)(1), (2) Date Mar. 4, 2022,
PCT Pub. No. WO2021/048443, PCT Pub. Date Mar. 18, 2021.
Claims priority of application No. 19197253 (EP), filed on Sep. 13, 2019.
Prior Publication US 2022/0340741 A1, Oct. 27, 2022
Int. Cl. C08L 23/08 (2006.01); C08K 3/04 (2006.01); C08L 23/0853 (2025.01); C08L 91/06 (2006.01)
CPC C08L 23/0853 (2013.01) [C08K 3/04 (2013.01); C08L 91/06 (2013.01); C08L 2203/202 (2013.01)] 18 Claims
 
1. A semiconductive polymer composition comprising:
(a) a base polymer of ethylene vinyl acetate copolymer comprising 3 to 22 wt % vinyl acetate relative to the total weight of the copolymer;
(b) at least 25 wt % of carbon black, wherein the carbon black has an iodine adsorption number of at least 10 mg/g when determined according to ASTM D-1510-19; and/or an oil absorption number of at least 30 ml/100 g when measured according to ASTM D 2414-19;
(c) at least 1 wt % of an ethylene vinyl acetate wax;
(d) at least 0.1 wt % of an acid scavenger, and
wherein the semiconductive polymer composition is free of polyethylene glycol.