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Title:
ANTI-WEAR COMPOSITION FOR LUBRICANTS
Document Type and Number:
WIPO Patent Application WO/2019/157350
Kind Code:
A3
Abstract:
Certain citric esters and amides, and certain mixtures thereof, e.g., mixtures comprising citrate oligomers, exhibit excellent anti-wear activity in lubricants. Many of these compounds or mixtures of compounds also exhibit a high degree of anti-wear synergy in combination with zinc dihydrocarbyldithiophosphates. The compounds of the invention are thus valuable tools that can allow one to reduce the amounts of zinc, and phosphates, that are used in the lubricant without sacrificing anti-wear performance.

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Inventors:
DEBLASE FRANK J (US)
STIEBER JOSEPH (US)
MACLEOD KENNETH CORY (US)
Application Number:
PCT/US2019/017307
Publication Date:
April 16, 2020
Filing Date:
February 08, 2019
Export Citation:
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Assignee:
LANXESS SOLUTIONS US INC (US)
International Classes:
C10M129/72
Foreign References:
US9080120B22015-07-14
US4868236A1989-09-19
US20160201004A12016-07-14
Other References:
MIRCI ET AL.: "NEW CITRIC ESTERS WITH AROMATIC CONTENT AND A COMPLEX STRUCTURE CONSIDERED AS TRIBOLOGICAL FLUIDS", LUBRICATION SCIENCE, vol. 20, no. 1, April 2003 (2003-04-01), pages 1 - 89, XP055701811
Attorney, Agent or Firm:
McDAVID, Christopher L. (US)
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