Phosphorus-containing compositions, lubricants containing them and metal workpieces coated with same
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United States of America Patent
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Aug 24, 1982
Issued Date -
N/A
app pub date -
Sep 21, 1979
filing date -
May 4, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Phosphorous acid diesters may be prepared by the reaction of an alkoxylated alkyl phenol with a phosphorus trihalide, or, in combination with water, with a triaryl phosphite. The former reaction also produces, as a byproduct, the corresponding halide. The resulting phosphorus-containing compositions are useful as additives for metal working lubricants.
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