Title:
LUBRICATING GREASES CONTAINING ANTIMONY DITHIOCARBAMATES
Document Type and Number:
WIPO Patent Application WO2006086621
Kind Code:
B1
Abstract:
Antimony dithiocarbamate is known to provide extreme pressure (EP) protection in lubricating compositions, such as grease. However, there is a desire to reduce the amount of antimony used in such compositions, while still maintaining acceptable EP performance. It has now been found by using small amounts of either ammonium dithiocarbamate or zinc dithiocarbamate in combination with the antimony dithiocarbamate (SbDTC), a lower amount of SbDTC can be used in the lubricating composition while still maintaining excellent or exceptional EP protection. To counteract the corrosive effects of the SbDTC and ammonium dithiocarbamate composition, it has been found that compounds containing a carboxylic acid group are effective in avoiding copper corrosion.
Inventors:
HIZA RONALD J (US)
AGUILAR GASTON A (US)
DONNELLY STEVEN G (US)
CHENG FRANCIS S (US)
TEPPER RONALD J (US)
AGUILAR GASTON A (US)
DONNELLY STEVEN G (US)
CHENG FRANCIS S (US)
TEPPER RONALD J (US)
Application Number:
PCT/US2006/004717
Publication Date:
May 29, 2008
Filing Date:
February 10, 2006
Export Citation:
Assignee:
VANDERBILT CO R T (US)
HIZA RONALD J (US)
AGUILAR GASTON A (US)
DONNELLY STEVEN G (US)
CHENG FRANCIS S (US)
TEPPER RONALD J (US)
HIZA RONALD J (US)
AGUILAR GASTON A (US)
DONNELLY STEVEN G (US)
CHENG FRANCIS S (US)
TEPPER RONALD J (US)
International Classes:
C10M135/18; C10N30/06
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