| 摘要 |
A novel hydroxyalkyldithiocarbamate borate ester compound is presented according to the formula: where R=alkyl C<SUB>1 </SUB>to C<SUB>25</SUB>; R'=H or CO<SUB>2</SUB>R; R''=(CH<SUB>2</SUB>)<SUB>m</SUB>OH where m=1 to 8, or alkyl C<SUB>1 </SUB>to C<SUB>25</SUB>; n=1 to 8. The borate ester compound is prepared by reacting boric acid with a novel hydroxyalkyldithiocarbamate ester compound according to the formula, and optionally with an alcohol: where R, R', R'' and n are as above. The hydroxyalkyldithiocarbamate ester is prepared by reacting a hydroxyalkylamine with CS<SUB>2</SUB>, and an acrylate or maleate compound. A lubricating composition is based on a major amount of lubricating oil and a minor amount of the hydroxyalkyldithiocarbamate borate ester.
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