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:
Jun. 23, 1992
Filed:
Sep. 21, 1990
Applicant:
Inventors:
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; C08J / ; C08L / ;
U.S. Cl.
CPC ...
521155 ; 521125 ; 521130 ; 521137 ; 521170 ; 521174 ;
Abstract
A process for preparing a soft flexible polyurethane foam by reacting (a) one or more organic polyisocyanates with (b) one or more polyols having a molecular weight in the range from about 400 to about 12,000, in the presence of (c) a catalyst, (d) a blowing agent, and (e), if desired, auxiliaries and/or additives, wherein the blowing agent (d) comprises water in admixture with about 0.01 to about 1 pbw, per 100 pbw polyol (b), of one or more non-crosslinked organic polyelectrolytes having a molecular weight in the range from about 1000 to about 20,000,000.