Abstract: Predominantly open-cell, cold-formable, compressed rigid polyurethane foams are produced from an isocyanate component satisfying specified criteria and an isocyanate-reactive component composed of at least 5 polyhydroxyl compounds satisfying specified criteria. These foams are produced by a double conveyor belt process. The foams of the present invention are particularly useful for the manufacture of soft trim for cars, especially inside roof linings, roof stiffening boards and column trim.

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.