	US 12,252,615 B2
	Transparent polymeric composition
Mathieu Sabard, Serquigny (FR); Philippe Blondel, Bernay (FR); Benjamin Saillard, Serquigny (FR); and Frédéric Malet, Pierre-Benite (FR)
Assigned to ARKEMA FRANCE, Colombes (FR)
Appl. No. 17/286,118
Filed by Arkema France, Colombes (FR)
PCT Filed Oct. 17, 2019, PCT No. PCT/FR2019/052459 § 371(c)(1), (2) Date Apr. 16, 2021, PCT Pub. No. WO2020/079371, PCT Pub. Date Apr. 23, 2020.
Claims priority of application No. 1859606 (FR), filed on Oct. 17, 2018.
Prior Publication US 2021/0371653 A1, Dec. 2, 2021
Int. Cl. C08L 77/06 (2006.01); C08L 51/04 (2006.01); C08G 69/36 (2006.01); C08L 33/12 (2006.01); C08L 53/00 (2006.01)

CPC C08L 77/06 (2013.01) [C08L 51/04 (2013.01); C08G 69/36 (2013.01); C08L 33/12 (2013.01); C08L 53/00 (2013.01); C08L 2201/10 (2013.01); C08L 2205/02 (2013.01); C08L 2207/53 (2013.01)]

12 Claims

1. A polyamide-based polymer composition comprising:

a) 50% to 98% by weight of polyamide consisting of transparent amorphous polyamide;

b) 1% to 15% by weight of a polymer in the form of core-shell particles; and

c) 1% to 15% by weight of a polyether block and polyamide block copolymer,

wherein said polyether block and polyamide block copolymer has:

as a 2 mm layer, a transmittance at 560 nm of 90% or more and

a refractive index that does not differ by more than 0.01 from that of the transparent amorphous polyamide,

and wherein the polymer in the form of core-shell particles has a refractive index that does not differ by more than 0.01 from that of the transparent amorphous polyamide.