Phosphite amine lubricant additives
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United States of America Patent
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Oct 23, 1990
Grant Date -
N/A
app pub date -
Jan 27, 1988
filing date -
Jan 27, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Lubricant additives are produced by reacting an alkoxylated amine, preferably a dialkoxy long chain alkyl amine, such as a propoxylated amine, with a disubstituted organic phosphite, preferably a dialkyl (C.sub.8 -C.sub.30) phosphite. The additives preferably also contain a boron moiety which is reacted with the phosphite and amine, preferably simultaneously in a one step reaction. The additives are particularly useful in metalworking oils and particularly as extreme pressure additives to replace the currently used chlorinated paraffin additives.
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