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:
Oct. 29, 1985
Filed:
Sep. 29, 1982
Applicant:
Inventors:
Curtis J Reichel, Wyandotte, MI (US);
Robert J Hartman, Southgate, MI (US);
Assignee:
BASF Wyandotte Corporation, Wyandotte, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
560200 ; 2604656 ; 502170 ; 521137 ; 525 41 ; 525 43 ; 525450 ;
Abstract
Polyether-ester polyols are prepared by reacting a polyether polyol, maleic anhydride and an alkylene oxide in the presence of a catalyst selected from the group consisting of calcium naphthenate and cobalt naphthenate. These polyols may be used in preparing polyurethane products.