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:
Sep. 06, 1977
Filed:
Apr. 26, 1976
Applicant:
Inventors:
John Scotchford Elliott, Beaconsfield, EN;
Bryan Terence Davis, Wokingham, EN;
Richard Martin Howlett, Wokingham, EN;
Assignee:
Edwin Cooper and Company Limited, Bracknell, EN;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09F / ; C09F / ; C07C / ;
U.S. Cl.
CPC ...
560 / ; 2604105 ;
Abstract
Alkylphenoxy alkanoic esters are made in high yield by reaction of a C.sub.50-200 alkylphenol with a halo-substituted alkanoic ester in the presence of a base. The reaction product contains little unreacted alkylphenol and is converted without separation to a reaction mixture containing mainly alkylphenoxy alkanoic amide by reaction with amines. The amide reaction mixture is an effective ashless dispersant for lubricating oil.