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US 5,672,727 AGranted
Dithiocarbamoyl diols and borate esters thereof for use in lubricant compositions
AssigneePennzoil Products Company
InventorI-Ching Chiu
Life of this patent
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Abstract
An alkyl dithiocarbamoyl alkanol that has the formula ##STR1## wherein Z is H or OH, Y is N, X is S, R.sup.1 and R.sup.2 are, selected from the group consisting of H and (C.sub.1 -C.sub.40)hydrocarbon residues R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 are selected from the group consisting of H and (C.sub.1 -C.sub.8)hydrocarbon residues, n is 0 to 4, is an intermediate to prepare a borate ester having the formula ##STR2## The borate esters are anti-wear/anti-oxidant/anti-friction/anti-rust additives for lubricating oil.
Claims8
An alkyldithiocarbamoyl alkanol of the formula ##STR12## wherein Z is OH or H;
- Y is N,
- X is S;
- R.sup.1 and R.sup.2 are, independent of one another, selected from the group consisting of H, (C.sub.8 -C.sub.40)hydrocarbon group and (C.sub.3 -C.sub.50) cycloalkyl, aryl and aralkyl, but only one of R.sup.1 and R.sup.2 can be H;
- R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 are, independent of one another, selected from the group consisting of H and (C.sub.1 -C.sub.8) hydrocarbon group;
- and
- n is 0 to 4.
3 more elements
Dependencies are inferred from the claim text.