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.

Date of Patent:
Nov. 10, 1987

Filed:

Dec. 23, 1986
Applicant:
Inventors:

Rodney L Sung, Fishkill, NY (US);

Benjamin H Zoleski, Beacon, NY (US);

Ronald L O'Rourke, Hyde Park, NY (US);

Assignee:

Texaco Inc., White Plains, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ; C10M / ;
U.S. Cl.
CPC ...
252 475 ; 252 / ; 252391 ; 252392 ; 252402 ; 252403 ;
Abstract

A haze, oxidation, and corrosion resistant diesel engine lubricant composition, particularly useful in marine and railway diesel engines, contains 0.1-5.0 weight percent of a reaction product additive. The reaction product additive is produced by first reacting substantially equimolar amounts of an anhydride compound which is either a dibasic acid anhydride or isatoic anhydride and a hydrocarbon-substituted mono primary amine or ether amine at a temperature range of 50.degree. C.-150.degree. C. to produce an intermediate reaction product. The intermediate reaction product is thereafter further reacted at an elevated temperature with a substantially equimolar amount of a heterocyclic azole or polyalkylene polyamine compound to form the final reaction product.


Find Patent Forward Citations

Sung, Rodney. (1987). Haze, oxidation, and corrosion resistant diesel engine lubricant (U.S. Patent No. 4705642). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4705642

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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