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. 11, 1976
Filed:
Mar. 05, 1975
Applicant:
Inventors:
Joseph Marian Swietlik, Reading, EN;
Michael David Sexton, Oxford, EN;
Assignee:
Exxon Research and Engineering Company, Linden, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M / ; C10M / ; C10M / ; C10M / ;
U.S. Cl.
CPC ...
252 475 ; 252 / ; 252402 ; 252403 ;
Abstract
A lubricating oil composition comprising a lubricating oil and the product derived from the reaction of (1) hexamethylene tetramine with (2) a phenol, a methylene bis-phenol or a sulphurised phenol provided that in said phenol, methylene bis-phenol or sulphurised phenol at least one of the 2,4 and 6 positions of the phenol aromatic ring is unsubstituted. In such lubricating oils the reaction product acts as an ashless detergent.