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:
Jul. 14, 1981
Filed:
Aug. 27, 1979
Applicant:
Inventor:
Justin C Powell, Wappingers Falls, NY (US);
Assignee:
Texaco Inc., White Plains, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
26034674 ; 2603 / ;
Abstract
A method is provided for preparing an alkenyl-substituted anhydride of an unsaturated dicarboxylic acid which comprises reacting a mole of an olefin or a polyolefin having from 3 to 200 carbon atoms with from about 0.9 to 2.0 moles of an anhydride of an unsaturated dicarboxylic acid in the presence of from about 5 to about 5000 ppm, based on said polyolefin, of a brominated phenol.