Rigid foams deformable by heat and processes for their preparati

Details Rigid foams deformable by heat and processes for their preparati Rigid foams deformable by heat and processes for their preparati

1987-03-18

1988-02-23

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

264321, 264544, 264319, 4283197, 4283199, 521173, 521174, 521176, 528 45, 528 49, 528 62, 528 69, C08G 1830

Patent

active

047270950

ABSTRACT:
Thermoformable rigid foams are made by reacting an organic polyisocyanate with a polyol component. The polyol component includes at least one organic polyhydroxyl compound having a hydroxyl number of from 28 to 1200, a foaming agent, a catalyst and a compound which masks isocyanate groups. Preferred isocyanate masking compounds are .epsilon.-caprolactam and nonyl phenol. The foam thus obtained may then be molded and crosslinked by heating it to a temperature of from 150.degree. to 190.degree. C. These foams are particularly useful as interior trim for motor vehicles.

REFERENCES:
patent: 4129697 (1978-12-01), Schapel et al.
patent: 4508774 (1985-04-01), Grabhoefer et al.

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