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:
Nov. 14, 1978
Filed:
Apr. 12, 1976
Applicant:
Inventor:
Hans D Holtz, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10L / ; C07C / ;
U.S. Cl.
CPC ...
44 66 ; 44 72 ; 44 73 ; 2605 / ; 2605 / ; 2605 / ;
Abstract
A long chain monocarboxylic acid, a polyamine, and an isocyanate containing about 12 to 18 carbon atoms are reacted to provide compounds which are suitable as ashless detergent additives. Optionally, these compounds can be further reacted with hydrocarbyl sulfonic acid. The method for producing these compounds is also provided. In a preferred embodiment the ashless fuel detergent additives are combined with hydrocarbons suitable as fuel in an internal combustion engine to provide ashless fuel detergent compositions.