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. 31, 1996
Filed:
Jan. 25, 1994
Applicant:
Inventors:
Henry Ledon, Versailles, FR;
Pierre Larnicol, Chalon-sur-Saone, FR;
Marie-Jeanne Desmurs, Saint Gengoux le National, FR;
Michel Dupont, Chagny, FR;
Assignee:
Chemoxal, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08B / ; C07B / ;
U.S. Cl.
CPC ...
536127 ; 127 34 ;
Abstract
A process for preparing any substance capable of forming a clathrate with a gas may start from a mixture in solution or in suspension of this substance with other components. This mixture is contacted with a gas to form a clathrate with the substance, a precipitate is collected, and the substance is recovered. The invention is especially useful for purifying .alpha.-cyclodextrin.