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:
Mar. 13, 1979
Filed:
Dec. 05, 1977
Applicant:
Inventors:
John R Murphy, Trenton, MI (US);
Louis C Pizzini, Trenton, MI (US);
Assignee:
BASF Wyandotte Corporation, Wyandotte, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560200 ; 560 83 ; 560 91 ; 560 93 ; 560119 ; 560120 ; 560127 ;
Abstract
Polyether-ester polyols are prepared in the presence of from 0.005 percent to 0.01 percent by weight (50-100 ppm) of a trialkylamine. The resulting polyols have improved color and are obtained in markedly reduced reaction times.