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:
Jun. 13, 2006
Filed:
May. 10, 2004
Ytterbium(iii) acetylacetonate as a catalyst for the preparation of aliphatic oligocarbonate polyols
Applicant:
Steffen Hofacker, Odenthal, DE;
Inventor:
Steffen Hofacker, Odenthal, DE;
Assignee:
Bayer Materialscience AG, Leverkusen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/44 (2006.01);
U.S. Cl.
CPC ...
Abstract
Ytterbium(III) acetylacetonate is used as a catalyst for the preparation of aliphatic oligocarbonate polyols by transesterification of at least one organic carbonate with at least one aliphatic polyol.