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:
Feb. 21, 2017
Filed:
Dec. 10, 2013
Afton Chemical Corporation, Richmond, VA (US);
Hong-Zhi Tang, Glen Allen, VA (US);
Lee D. Saathoff, Glen Allen, VA (US);
Afton Chemical Corporation, Richmond, VA (US);
Abstract
A lubricant composition comprising lubricating oil and a compound containing phosphorus and an amine of formula I: wherein Ris a hydrocarbon group and at least one of Ris selected from: —(C-C)alkyl, —(C-C)alkenyl, —(C-C)cycloalkyl; R is selected from: —(C-C)alkyl, —(C-C)alkenyl, —(C-C)cycloalkyl; and wherein R, Rand Rare independently selected from: —H, —(C-C)alkyl, —(C-C)alkenyl, —(C-C)cycloalkyl, wherein at least one of R, Rand Ris not H; X is O or S; Yand Yare selected from S and O; m is 1 or 2, n is 0 or 1, p is 1 or 2, provided that m+n+p=3 and q=0.8 to 1.2*p, wherein the compound provides at least 48 ppm of phosphorus and a molar ratio phosphorus to nitrogen (P/N) in the range of about 0.40 to about 1.50.