US 12,290,968 B2
Method for the manufacture of post-deformable high-pressure composite and product obtained therefrom
Claudia Brito Da Costa, Maia (PT); Raul Manuel Esteves De Sousa Fangueiro, Braga (PT); Fernando Eduardo Macedo Da Cunha, Braga (PT); Carlos Miguel Costa Mota, Amares (PT); and Jorge Filipe Soares Teixeira, Sao Mamede Infesta (PT)
Assigned to SURFORMA, S.A., Maia (PT)
Appl. No. 17/792,425
Filed by SURFORMA, S.A., Maia (PT)
PCT Filed Dec. 30, 2020, PCT No. PCT/IB2020/062533
§ 371(c)(1), (2) Date Jul. 13, 2022,
PCT Pub. No. WO2021/148872, PCT Pub. Date Jul. 9, 2021.
Claims priority of application No. 116068 (PT), filed on Jan. 21, 2020.
Prior Publication US 2022/0388205 A1, Dec. 8, 2022
Int. Cl. B29C 70/46 (2006.01); B29C 43/14 (2006.01); B29C 43/20 (2006.01); B32B 5/02 (2006.01); B32B 29/00 (2006.01); B32B 29/02 (2006.01); B32B 29/06 (2006.01); B29K 101/12 (2006.01); B29K 711/12 (2006.01)
CPC B29C 43/203 (2013.01) [B29C 43/146 (2013.01); B32B 5/02 (2013.01); B32B 29/005 (2013.01); B32B 29/02 (2013.01); B32B 29/06 (2013.01); B29K 2101/12 (2013.01); B29K 2711/123 (2013.01); B32B 2255/12 (2013.01); B32B 2255/26 (2013.01); B32B 2262/101 (2013.01); B32B 2262/106 (2013.01); B32B 2307/54 (2013.01); B32B 2307/546 (2013.01); B32B 2307/558 (2013.01); B32B 2307/718 (2013.01); B32B 2307/72 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for the manufacture of a post-deformable high-pressure composite, characterized in that it comprises the following steps:
a) formation of a composite (1) by the arrangement of at least two layers of material, among which:
i. a plurality of Kraft paper sheets (3) coated with at least one type of thermoplastic resin, forming a laminate with two opposite flat surfaces; and
ii. a decorative coating (2) arranged on at least one of the flat surfaces of the laminate, the said decorative coating (2) being impregnated with at least one thermosetting resin or at least one thermoplastic resin;
b) hot compression moulding of the composite (1) formed in step a) by means of compression moulding at a temperature between 120° C. and 200° C. and at a pressure between 50 and 120 bar for 5 to 25 minutes;
c) the composite (1) formed in step b) remains in the compression moulding means until the latter cool to a temperature ranging from 17 to 22° C. and at a pressure between 50 and 120 bar;
wherein the Kraft paper sheets undergo a surface treatment with cold plasma produced by dielectric-barrier discharge at atmospheric pressure; and
wherein after step (i), synthetic fibres are additionally laid on at least one side of the laminate in a proportion between 5 and 20% of the total weight of the laminate.