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US 11,850,835 B2Granted
Production of composite materials made of film, solid adhesive polymer, and a polyurethane layer
AssigneeBASF Coatings GmbH
InventorsPaul Andrew Simpson, Detlef Pfeifer, Yves Stiwitz
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Abstract
Provided herein is a process for the preparation of multilayered composite materials, and also multilayered composite materials which can be obtained according to this process.
Claims13
A process for preparation of multilayered composite materials comprising:
- (A) a film made of polyurethane or polyamide,
- (B) a tie layer made of thermoplastic adhesive polymer with a melting range from 70° C. to 130° C., and
- (C) a polyurethane layer,
- wherein the process comprises:
- a) forming the polyurethane layer (C) using a mold,
- b) applying the adhesive polymer in solid form to the film (A) and/or to the polyurethane layer (C), and
- c) combining the polyurethane layer (C) with the film (A).
4 more elements
Dependencies are inferred from the claim text.