Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Organic sulfur compound – wherein the sulfur is single bonded...
Patent
1997-04-24
1998-12-29
Howard, Jacqueline V.
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Organic sulfur compound, wherein the sulfur is single bonded...
C10M13510
Patent
active
058541845
ABSTRACT:
New overbased colloidal products that comprise a core of micellized alkali metal or alkaline-earth metal carbonate, surrounded by a ring of at least one surfactant compound that is selected from among the dihydrocarbyl-dithiophosphoryl-alkane-sulfonic acids, and their salts of alkali metals or alkaline-earth metals are described. They are derived from the carbonation of at least one oxide or hydroxide of an alkali metal or alkaline-earth metal that is carried out within an oily medium that contains hydrocarbon in the presence of at least one dihydrocarbyl-dithiophosphoryl-alkane-sulfonic acid that corresponds to general formula: ##STR1## in which R represents a monovalent aliphatic, cycloaliphatic or aromatic radical that contains 1 to 30 carbon atoms and x has a value of 3 to 6, or an alkali metal or alkaline-earth metal salt of such an acid. These colloidal products can be used as detergent additives notably providing anti-wear and extreme-pressure properties in lubricants. Because of the presence in their molecule of dihydrocarbyl-dithiophosphoric groups, they also exhibit anti-oxidizing properties.
REFERENCES:
patent: 2786029 (1957-03-01), Brugmann, Jr.
patent: 2965665 (1960-12-01), Gaertner et al.
patent: 3718589 (1973-02-01), Rogers et al.
patent: 4541940 (1985-09-01), Spence
patent: 4824584 (1989-04-01), Muir et al.
patent: 5449470 (1995-09-01), Cahoon et al.
Born Maurice
Delfort Burno
Lacome Thierry
Howard Jacqueline V.
Institut Francais du Pe'trole
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