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:
Jul. 02, 2019
Filed:
Feb. 25, 2016
The Lubrizol Corporation, Wickliffe, OH (US);
James D. Burrington, Wickliffe, OH (US);
Ewan Delbridge, Wickliffe, OH (US);
Yanshi Zhang, Wickliffe, OH (US);
John K. Pudelski, Wickliffe, OH (US);
THE LUBRIZOL CORPORATION, Wickliffe, OH (US);
Abstract
A lubricating composition includes an oil of lubricating viscosity and an ionic tetrahedral borate compound which includes a cation and a tetrahedral borate anion which includes a boron atom, the boron atom having at least one aromatic bidentate di-oxo ligand. The compound may be represented by formula (I), where Rand Rare selected from Chydrocarbyl groups or together form a substituted or unsubstituted 5- or 6-membered ring; Rand Rtogether represent a substituted or unsubstituted aromatic ring; m is 0 or 1; X is hydrogen, a Chydrocarbyl group, —OR, —NHR, or ═O, Ris a Chydrocarbyl group; M represents the cation; and n is at least 1. The cation may be selected to provide detergent and/or dispersant properties to the lubricating composition. In the case of ammonium cations, the molecular weight may be 260 g/mol or higher for providing a highly soluble compound, particularly when X is ═O.