Patent ID: 7968168
Filing Date: 2011-06-28
Classification: B32B,C08G,C08L,C09D,Y10T

Abstract:
1. A fiber/plastic composite comprising a surface coating, said fiber/plastic composite being produced by a crushed core method from a composite structure comprising a core and at least one prepreg layer, said surface coating comprising a substrate supported polymer film, said polymer film comprising a film of a resin matrix, which is produced using (a) at least one difunctional or polyfunctional aromatic organic cyanate and (b) at least one difunctional or polyfunctional aromatic alcohol in proportions ensuring a molar ratio of OCN groups to OH groups in the starting materials for the production of the prepolymer of from 95:5 to 70:30, and also (c) at least one filler,  wherein the resin matrix has a degree of crosslinking which is below its gel point, wherein said polymer film is applied to a prepreg surface of the at least one prepreg layer with a resin side of the polymer film facing said surface prior to curing of said composite structure, and curing is carried out under applied pressure and at an elevated temperature.