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. 03, 1981
Filed:
Mar. 22, 1978
Applicant:
Inventor:
Kenneth P Satterly, Kennett Square, PA (US);
Assignee:
Witco Chemical Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
521110 ; 521131 ; 521159 ; 521174 ; 521175 ;
Abstract
A rigid shrink stable polyurethane foam having a K factor value below 0.22 and having substantially all closed cells is prepared from a reaction product of an arylene polyisocyanate and an addition product of an alkylene oxide having at least three carbon atoms and a polyol having at least four hydroxy groups using a chlorofluoro-lower alkane blowing agent.