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:
Jan. 12, 1982
Filed:
May. 23, 1980
Applicant:
Inventors:
Guy Rabilloud, Grenoble, FR;
Bernard Sillion, Lyons, FR;
Assignee:
Institut Francais du Petrole, Rueil-Malmaison, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
568315 ; 568312 ;
Abstract
Bis (phenylglyoxyloyl) benzenes are manufactured by a method comprising the reaction of terephthalic or isophthalic aldehyde first with a low proportion of an alkali metal cyanide in a solvent, and then with benzaldehyde; the resultant product is oxidized to the desired bis (phenylglyoxyloyl) benzene.