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...
Reexamination Certificate
2007-12-18
2007-12-18
McAvoy, Ellen M. (Department: 1764)
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...
C508S364000, C508S365000, C508S379000, C556S038000, C556S057000, C556S061000
Reexamination Certificate
active
10611228
ABSTRACT:
A process for making an additive comprising one or more oil-soluble or oil-dispersible molybdenum-sulfur compounds, said process comprising the steps of:(I) reacting in a polar medium a reactant molybdenum compound (A) and a source of a ligand (B), which ligand (B) is capable of rendering the or each molybdenum-sulfur compound oil-soluble or oil-dispersible; and(II) reacting a compound (C), which is capable of reacting with labile sulfur, either with (a) the reaction mixture of step (I) after the reaction of (A) and (B) has begun or (b) the product of step (I).The additive has improved color characteristics and a lubricating oil composition comprising said additive is more benign to corrosion of metals.
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Giffin Gregory C.
Gutierrez Antonio
John Joby V.
Wangner Ronald P.
Infineum International Limited
McAvoy Ellen M.
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