The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 1989
Filed:
Apr. 01, 1988
Terence Colclough, Abingdon, GB;
Exxon Chemical Patents Inc., Linden, NJ (US);
Abstract
Sulphur-containing borate esters for use in lubricants appropriate to modern oil requirements with reduced or zero amounts of phosphorous and without the need for large amounts and/or expensive forms of antioxidant and additional anti-wear additives are of the formula: ##STR1## wherein each R is a hydrocarbyl group optionally substituted by one or more --XR' group, or the two R groups attached to one boron represent a group --(R'CH).sub.m --, x is 1 or 2, each n is from 1 to 6, each m is from 2 to 4 and each R' is hydrogen, and --XR' group, or a hydrocarbyl radical optionally substituted by one or more --XR' group, X is O, S or NR' and R' is hydrogen, a hydrocarbyl radical or a hydrocarbylcarbonyl group.