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:
May. 31, 1988
Filed:
Apr. 23, 1987
Applicant:
Inventor:
Raymond Bertholet, Blonay, CH;
Assignee:
Nestec S.A., Vevey, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549456 ;
Abstract
A mixture of cafestol and kahweol is obtained from coffee oil by treating coffee oil with anhydrous methanol in the presence of a basic catalyst, dissolving methyl esters which are formed by the reaction and then extracting the cafestol and kahweol from the reaction medium with aqueous methanol and then with a low-boiling chlorinated hydrocarbon. A process for the preparation of cafestol from kahweol is also disclosed.