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:
Feb. 23, 1988
Filed:
Mar. 18, 1987
Applicant:
Inventors:
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
521166 ; 264321 ; 264544 ; 264319 ; 4283197 ; 4283199 ; 521173 ; 521174 ; 521176 ; 528 45 ; 528 49 ; 528 62 ; 528 69 ;
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.