Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Nitrogen and heavy metal – or nitrogen and aluminum – in the...
Patent
1996-12-13
1999-03-30
Johnson, Jerry D.
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Nitrogen and heavy metal, or nitrogen and aluminum, in the...
508367, 508370, C10M13900
Patent
active
058889450
ABSTRACT:
The invention is a method for enhancing and restoring the friction reduction effectiveness of a lubricating oil comprising adding to the lubricating oil a trinuclear molybdenum sulfur compound selected from the group of trinuclear molybdenum compounds preferably those having the formulas Mo.sub.3 S.sub.7 (dtc).sub.4 and Mo.sub.3 S.sub.4 (dtc).sub.4 and mixtures thereof wherein dtc represents independently selected diorganodithiocarbamate ligands containing independently selected organo groups and wherein the ligands have a sufficient number of carbon atoms among all the organo groups of the compound's ligands are present to render the compound soluble or dispersible in the lubricating oil. The oil may be a fresh or used oil. Concentrates of the composition are also included in the invention.
REFERENCES:
patent: 4705641 (1987-11-01), Goldblatt et al.
patent: 4846983 (1989-07-01), Ward, Jr.
patent: 4867890 (1989-09-01), Colclough et al.
patent: 4966719 (1990-10-01), Coyle et al.
patent: 4978464 (1990-12-01), Coyle et al.
patent: 4995996 (1991-02-01), Coyle et al.
Syntheses of Sulphur-Bridged Molybdenum and Tungsten Coordination Compounds, Takashi Shibahara, pp. 73-147; Dept. of Chemistry, Okayama University of Science; Japan; Rec'd. May 20, 1992.
Leta Daniel Paul
McConnachie Jonathan M.
Stiefel Edward Ira
Exxon Research and Engineering Company
Hugh Gerard J.
Johnson Jerry D.
LandOfFree
Method for enhancing and restoring reduction friction effectiven does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for enhancing and restoring reduction friction effectiven, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for enhancing and restoring reduction friction effectiven will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1214890