US 12,441,855 B2
Acrylic composites with improved surface properties
Dana L. Swan, Spring City, PA (US); Robert A. Wanat, Langhorne, PA (US); Robert J. Barsotti, Newtown Square, PA (US); Nathan J. Bachman, West Chester, PA (US); and Pierre Gerard, Denguin (FR)
Assigned to Arkema France, Puteaux (FR)
Appl. No. 17/294,763
Filed by Arkema France, Colombes (FR)
PCT Filed Nov. 19, 2019, PCT No. PCT/US2019/062102
§ 371(c)(1), (2) Date May 18, 2021,
PCT Pub. No. WO2020/106663, PCT Pub. Date May 28, 2020.
Claims priority of provisional application 62/769,027, filed on Nov. 19, 2018.
Prior Publication US 2021/0403653 A1, Dec. 30, 2021
Int. Cl. C08J 5/04 (2006.01); C08J 3/205 (2006.01); C08J 3/21 (2006.01); C08K 3/013 (2018.01)
CPC C08J 5/043 (2013.01) [C08J 3/2053 (2013.01); C08J 3/212 (2013.01); C08K 3/013 (2018.01); C08J 2327/16 (2013.01); C08J 2333/12 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A composite material comprising:
(a) a polymeric thermoplastic (meth)acrylic matrix,
(b) 20-99% by weight a fibrous material as reinforcement based on the total weight of the composite material, and
(c) 0.5-50% by weight of one or more non-acrylic polymer additives based on the weight of the polymeric thermoplastic (meth)acrylic matrix,
wherein the fibrous material has either at least an aspect ratio of the fibre of at least 1000 or at least a two dimensional macroscopic structure, and
wherein said one or more non-acrylic polymer additives is selected from the group consisting of a homopolymer of vinylidene fluoride, a copolymer of vinylidene fluoride and hexafluoropropylene, or mixtures thereof.