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:
Jul. 20, 2004
Filed:
Jan. 02, 2003
Applicant:
Inventors:
Alexander Sunder, Köln, DE;
Rolf Mülhaupt, Freiburg, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 6/526 ; C08G 6/528 ;
U.S. Cl.
CPC ...
C08G 6/526 ; C08G 6/528 ;
Abstract
This invention relates to as process for the preparation of highly-branched polyols by polymerization of glycidol in the presence of a hydrogen-active starter compound with basic catalysis, wherein glycidol is added in dilute solution and the solvent used for the dilution is continuously distilled off. The polyols thus prepared are colorless, contain as the core unit solely the starter compound used and have polydispersities of less than 1.7.