Biodegradable lubricant composition from triglycerides and oil soluble copper
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United States of America Patent
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Jan 26, 1999
Issued Date -
N/A
app pub date -
Aug 25, 1997
filing date -
May 15, 1996
priority date (Note) -
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Abstract
A lubricant composition is disclosed which comprises, a triglyceride oil lubricant and an oil soluble copper compound antioxidant. The oil soluble copper compounds are particularly effective antioxidants for triglycerides. The lubricant composition can include soluble zinc compounds which reduce wear and/or soluble antimony compounds which reduce wear and can function as adjuvant antioxidants reducing the amount of oil soluble copper required. Preferred zinc and antimony compounds are zinc dithiophosphate antiwear/antioxidant, and antimony dialkyldithiocarbamate antioxidant adjuvant.
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