Patent ID: 7241356

Claim:
A method of producing a composite structure comprising the steps of: a) obtaining a support having dehesive properties; b) optionally coating the support with a polyurethane layer; c) forming at least one polyurethane layer on the optionally coated support, wherein each layer is formed by spreading onto the optionally coated support a reactive spreadable material capable of forming a polyurethane layer and having a composition (A) which includes: i) a polyol HO—R 1 —OH with primary and/or secondary terminal hydroxyl functionalities, ii) a diisocyanate OCN—R 2 —NCO and/or a diisocyanate pre-polymer OCN—R 2 —NH—CO—O—R 1 —O—CO—NH—R 2 —NCO, wherein R 1 and R 2 independently represent an organic radical which comprises aliphatic, cyclo-aliphatic, aromatic and/or heterocyclic groups, and iii) a catalyst; d) thermally hardening the reactive spreadable material to form the at least one polyurethane layer; e) applying an adhesive layer on the at least one polyurethane layer; f) applying a textile layer on the side facing away from the support; and g) removing the composite structure from the support after the adhesive layer has hardened.