Process for making sulfur boron antiwear agents for lubricating

Details Process for making sulfur boron antiwear agents for lubricating Process for making sulfur boron antiwear agents for lubricating

1998-11-25

2000-02-22

Medley, Margaret

Organic compounds -- part of the class 532-570 series

Organic compounds

Borate esters

558295, C07F 504, C07F 505

Patent

active

06028210&

ABSTRACT:
Sulfur-containing boroester compounds useful as antiwear additives for oleaginous compositions including alicyclic borate thioesters having the general formula (I): ##STR1## wherein R.sub.1 is a hydrocarbyl radical having 4 to 12 carbon atoms, R.sub.2 and R.sub.3 are independently selected from --(OR.sub.4).sub.n SR.sub.1 and --(OR.sub.4).sub.n SR.sub.1 OH; R.sub.4 is a hydrocarbyl radical having 1 to 6 carbon atoms; n is an integer of from 1 to 4; and l and m are independently 0, 1 or 2; thioalkyl-substituted cyclic meta borate esters having the general formula (II): ##STR2## wherein n, R.sub.1 and R.sub.4 are defined as in formula (I); and mixtures of the alicyclic compounds of formula (I) and the cyclic compounds of formula (II).

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