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. 25, 1993
Filed:
Apr. 14, 1992
Applicant:
Inventors:
Yves Castanet, Hem, FR;
Bruno Seuillet, Compiegne, FR;
Andre Mortreux, Hem, FR;
Francis Petit, Villeneuve d'Asq, FR;
Assignee:
Sollac, A French Body Corporate, Puteaux, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
562891 ; 562890 ; 562889 ; 562519 ; 562517 ;
Abstract
The invention relates to a process for the preparation of acetic anhydride, characterized in that a gas containing essentially CO, at a pressure of at least 1 MPa, is reacted with methyl formate in the presence of