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:
Apr. 08, 1997
Filed:
Dec. 05, 1995
Applicant:
Inventors:
Gilles Drivon, Saint Martin en Haut, FR;
Jean-Philippe Gillet, Brignais, FR;
Christophe Ruppin, Pierre-Benite, FR;
Alain Wattier, Vernaison, FR;
Assignee:
Elf Atochem S.A., Puteaux, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
2041576 ; 20415761 ; 20415763 ; 20415789 ; 560227 ;
Abstract
For the preparation of alkyl halodifluoroacetates, a 1,1-difluorotetrahaloethane is reacted with an alcohol in the presence of air and/or oxygen and a free-radical initiator, such as for example an azo compound, e.g., azobis(isobutyronitrile).