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. 08, 1979
Filed:
May. 18, 1978
Applicant:
Inventors:
Eero K Lamminkari, Oulu, FI;
Lasse A Koskenniska, Oulu, FI;
Assignee:
Medipolar Oy, Oulu, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07J / ;
U.S. Cl.
CPC ...
26039725 ;
Abstract
A process for the isolation of technical grade .beta.-sitosterol from the mixture of sterols in unsaponifiables obtained from crude soap skimmings. The unsaponifiables, usually called the neutral fraction, are dissolved in acetone, filtrated with active carbon, the acetone filtrate is concentrated, ethanol is added and, after cooling, the precipitated .beta.-sitosterol is centrifuged or filtered from the mixture.