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:
Mar. 01, 2011
Filed:
Dec. 08, 2006
Applicants:
Werner Bonrath, Freiberg, DE;
Francesco Pace, Stein, CH;
Inventors:
Werner Bonrath, Freiberg, DE;
Francesco Pace, Stein, CH;
Assignee:
DSM IP Assets B.V., Heerlen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 33/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for the preparation of terminally ethylenically unsaturated isopolyprenols characterized in that a carbonyl compound is reacted with ethine in the presence of ammonia and low amounts of an alkaline metal hydroxide and, if desired, the terminally acetylenically unsaturated isopolyprenol obtained is partially hydrogenated in the presence of a catalyst suitable for selective hydrogenation.