The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 2002
Filed:
May. 18, 2000
Karsten Reihs, Köln, DE;
Flore Kempkes, Augsburg, DE;
Burkhard Köhler, Leverkusen, DE;
Holger Warth, Dormagen, DE;
Bayer Aktiengesellschaft, Leverkusen, DE;
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.