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:
Jun. 22, 1993
Filed:
Apr. 17, 1992
Applicant:
Inventors:
Pierre Chabardes, Sainte Foy les Lyon, FR;
Noel Crenne, Lyons, FR;
Assignee:
Rhone-Poulenc Nutrition Animale, Commentry, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F / ; C07F / ; C07F / ; C07F / ;
U.S. Cl.
CPC ...
556-7 ; 556 27 ; 556 42 ; 556 54 ; 556 57 ; 556 81 ; 556130 ; 556146 ; 556182 ; 556 45 ; 568-1 ; 568410 ; 568414 ; 568417 ;
Abstract
A process for the purification of pseudo-ionone, which comprises preparing pseudo-ionone by a reaction of citral with acetone, followed by bringing the reaction medium into contact with a metal derivative and thereafter distilling the pseudo-ionone.