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:
Dec. 03, 1991
Filed:
Jan. 08, 1991
Applicant:
Inventor:
Albert J Heuvelsland, Heikant, NL;
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
124155 ; 521167 ; 521174 ; 521128 ; 528 57 ; 536120 ; 252609 ;
Abstract
Polyether polyols having an equivalent weight of from about 200 to about 5000 are prepared by the process of this invention. The process uses barium- or strontium-containing alkoxylation catalysts to provide products with reduced unsaturation in comparison to similar products produced with potassium hydroxide catalysis. The use of these catalysts also increases the capping efficiency with ethylene oxide to provide products with a higher primary hyroxyl content for the same weight percentage of ethylene oxide cap.
Heuvelsland, Albert. (1991). Production of polyether polyols with reduced unsaturation (U.S. Patent No. 5070125). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5070125
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile