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:
Apr. 03, 1979
Filed:
Aug. 17, 1977
Applicant:
Inventors:
Gerald J Jayne, Wokingham, GB;
David R Woods, Tavin Oranmore, IE;
Joseph P O'Brien, Kirkwood, MO (US);
Assignee:
Edwin Cooper and Company Limited, Bracknell, GB;
Primary Examiner:
Int. Cl.
CPC ...
C10M / ; C10M / ; C07G / ; C09B / ;
U.S. Cl.
CPC ...
252 45 ; 252406 ; 260139 ;
Abstract
Lubricating oils having improved antioxidant and antiwear properties are obtained by adding a minor amount of a reaction product made by reacting an olefinic hydrocarbon containing about 6-18 carbon atoms and about 1-3 olefinic double bonds concurrently with sulfur and hydrogen sulfide to obtain a reaction intermediate and reacting this intermediate with additional olefin hydrocarbon which may be the same or different. Preferred olefinic hydrocarbons are dicyclopentadiene and alloocimene.