Composite material comprising polyurethane and at least one thermoplastic plastics material, a process for the production thereof and the use thereof in motor vehicles

US6485836B2 · kind B2 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Karsten Reihs · Cologne, DE
• Flore Kempkes · Augsburg, DE
• Burkhard Kohler · Leverkusen, DE
• Holger Warth · Sha Tin, CN

Key dates

• Filing date: May 18, 2000
• Grant date: Nov 26, 2002
• Expiry date: May 18, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31609
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A composite material is described which comprises at least two layers of different plastics materials which are directly bonded to each other, wherein A) one layer of the composite comprises polyurethane, and B) a layer of the composite which is directly bonded to layer A) comprises a thermoplastic plastics material which is different from the material which layer A) comprises, wherein layer A) contains homogeneously distributed particles, which are at least coated with a thermoplastic plastics material which is different from the material comprising layer A), and which have a particle size of ≦50 nm, wherein the total surface area of the particles corresponds at least to the extent of the total interface between layers A) and B). A process for the production of these composites is also described, as is the use of these composites in motor vehicle construction.