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:
Oct. 17, 2000
Filed:
Dec. 22, 1999
Applicant:
Inventors:
Jeffrey Lynn Milner, Midlothian, VA (US);
Ronald Lee Phillips, Richmond, VA (US);
Nubar Ozbalik, Midlothian, VA (US);
Anthony J Rollin, Midlothian, VA (US);
Assignee:
Ethyl Corporation, , VA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
508436 ; 508436 ;
Abstract
Sulfurized phosphorous compounds, which are effective anti-wear, extreme pressure agents, may be formed without odor by reacting phosphorous compounds with other reactive sulfur sources, including elemental sulfur, before addition of polysulfides. The process of the present invention yields a lubricant additive package which is odor free or very low odor, thermally stable, and which contains polysulfides. Particularly useful embodiments of this invention include low odor gear lubricant additive packages.