Patent · US Expired

Process for the production of composite sheet bodies which are suitable as self-supporting components in automobiles

US5716564A · kind A · utility

0Cited by

6References

6Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Ulrich Liman · Monheim, DE
Hans Kath · Neunburg vorm Wald, DE
Klaus-Werner Huland · Wermelskirchen, DE

Key dates

Filing date	Jan 11, 1996
Grant date	Feb 10, 1998
Priority date	—
Expiry date	Jan 11, 2016

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60R13/04
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The present invention relates to a process for the production of composite sheet bodies by back-foaming a flexible facing with a polyurethane foam forming reaction mixture. This polyurethane foam is characterized by a density of less than 300 g/l, preferably from 20 to 150 g/l, and optionally contains isocyanurate groups. Suitable flexible facings include those having a thickness of less than 10 mm, preferably less than 2 mm. This composite bodies produced by this process are suitable for use in the automobile sector as self-supporting components. Conventional stiffening elements are not necessary to produce these self-supporting composite bodies.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.