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. 22, 2002
Filed:
May. 01, 2002
Applicant:
Inventors:
Ornulf Rexin, Freiburg, DE;
Rolf Mülhaupt, Freiburg, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 4/311 ; C07C 3/118 ; C07C 2/700 ; C08G 5/968 ;
U.S. Cl.
CPC ...
C07C 4/311 ; C07C 3/118 ; C07C 2/700 ; C08G 5/968 ;
Abstract
The invention is directed to a process for preparing a polyether polyol by the polyaddition of an alkylene oxide on to a starter compound containing active hydrogen atoms under basic catalysis in the presence of phosphonium cations.
Quick Actions:
Rexin, Ornulf. (2002). Process for preparing polyether polyols (U.S. Patent No. 6469218). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6469218
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile