Sulfurized metalworking lubricants derived from modified natural fats and oils and formulations
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United States of America Patent
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Dec 18, 1990
Issued Date -
N/A
app pub date -
Nov 30, 1989
filing date -
Sep 2, 1988
priority date (Note) -
Expired
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Abstract
Improved sulfurized metalworking lubricants derived from natural fats and oils which are modified by reacting the natural fat or oil with a hindered polyol and a dicarboxylic acid are provided. Also disclosed are sulfurized blends of said modified fats and oils with fatty acid esters and lubricant compositions useful for a variety of metalworking applications wherein the sulfurized modified triglycerides or sulfurized blends are combined with other lubricating agents, emulsifiers and additives.
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