Phosphorous amine lubricant additives
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United States of America Patent
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Sep 20, 1994
Issued Date -
N/A
app pub date -
Feb 4, 1993
filing date -
May 18, 1990
priority date (Note) -
Expired
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Abstract
Lubricant additives are disclosed which are produced by reacting an alkanolamine, a carboxylic acid and phosphorous acid. The reaction product may also include a boron compound and/or a monofunctional alcohol. The additives are useful in combination with metalworking oils, particularly in extreme pressure applications, to replace currently used chlorinated paraffin additives.
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