	US 12,252,606 B2
	Composites having a thermoplastic matrix
Jürgen Franosch, Marl (DE); Andreas Szentivanyi, Essen (DE); Hans Ries, Marl (DE); and Horst Beyer, Marl (DE)
Assigned to Evonik Operations GmbH, Essen (DE)
Appl. No. 17/275,274
Filed by Evonik Operations GmbH, Essen (DE)
PCT Filed Sep. 19, 2019, PCT No. PCT/EP2019/075171 § 371(c)(1), (2) Date Mar. 11, 2021, PCT Pub. No. WO2020/058403, PCT Pub. Date Mar. 26, 2020.
Claims priority of application No. 18195870 (EP), filed on Sep. 21, 2018.
Prior Publication US 2022/0041849 A1, Feb. 10, 2022
Int. Cl. C08L 27/16 (2006.01); C08J 5/04 (2006.01); C08K 7/06 (2006.01); C09J 7/30 (2018.01); C09J 127/16 (2006.01); F16L 9/12 (2006.01)

CPC C08L 27/16 (2013.01) [C08J 5/042 (2013.01); C08K 7/06 (2013.01); C09J 7/30 (2018.01); C09J 127/16 (2013.01); F16L 9/12 (2013.01); F16L 9/121 (2013.01); F16L 9/123 (2013.01); C08J 2327/16 (2013.01); C08J 2433/14 (2013.01); C09J 2427/00 (2013.01); C09J 2433/00 (2013.01)]

21 Claims

1. A composite comprising:

a polymer matrix and

continuous fibers embedded therein,

wherein the polymer matrix has a content of at least 80% by weight of a mixture comprising the following components:

(a) low-viscosity polyvinylidene fluoride (PVDF) as the main component, present in a content of at least 50 parts by weight, and

(b) from 1 to 50 parts by weight of an acrylate copolymer, wherein the acrylate copolymer contains from 1% to 30% by weight of units having carboxylic anhydride units,

wherein the sum total of the parts by weight of a) and b) is 100,

wherein the proportion by volume of the continuous fibers in the composite is from 10% to 80%, and

wherein the low-viscosity polyvinylidene fluoride (PVDF) has a melt flow index of from 18 to 50 g/10 min.