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. 27, 2005
Filed:
Feb. 04, 2000
Applicants:
Joerg Schwarzer, Hilden, DE;
Bernhard Gutsche, Hilden, DE;
Inventors:
Joerg Schwarzer, Hilden, DE;
Bernhard Gutsche, Hilden, DE;
Assignee:
Cognis Deutschland GmbH & Co. KG, Duesseldorf, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D009/00 ;
U.S. Cl.
CPC ...
Abstract
Processes for preparing substantially citrostadienol-free phytosterols are disclosed. The processes described include dissolving a liquid phytosterol in a hydrocarbon solvent, optionally with added methanol, and crystallizing the phytosterol compounds. Also described are the resulting phytosterols which are substantially citrostadienol-free, and preferably contain less than 0.5% by weight citrostadienol.