Multilayered films

US5219643A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Fritz Schmidt
• Hans-Eberhard Braese · Cologne, DE
• Karl-Erwin Piejko · Bensberg, DE
• Christian Lindner · Bensheim, DE

Key dates

• Filing date: Sep 3, 1991
• Grant date: Jun 15, 1993
• Expiry date: Sep 3, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31583
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The present invention relates to multilayered films consisting of a thermoplastic film having a long term temperature resistance above 130.degree. C. and a tough elastic film of a mixture of a polyurethane, an acrylate rubber polymer and optionally a thermoplast resin selected from vinyl polymers. The invention also relates to the use of the multilayered films for the production of crash pad films.