Oil soluble sulfur free oxymolybdenum organic compounds having friction reducing antiwear properties in lubricant compositions, process of manufacture, and lubricant compositions
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United States of America Patent
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Apr 2, 1985
Issued Date -
N/A
app pub date -
Nov 17, 1983
filing date -
Jan 18, 1982
priority date (Note) -
Expired
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Abstract
A new class of hydrocarbon-soluble sulfur-free oxymolybdenum compounds is described having the formula [(RO).sub.n (HO).sub.3-n PO](MoO.sub.3).sub.x where n=1 to 2; x=more than 1 to 9 except when n=2, then x=not more than 6 and when n=1.5 then x is not more than 7.5. The R radical is defined as substantially hydrocarbyl and may be alkyl, substituted alkyl, aryl, aralkyl, cycloalkyl or alkaryl. The compounds are prepared by the reaction of monoalkyl or dialkyl acid phosphates or mixtures thereof with molybdic oxide suspended in a suitable medium, together with a catalytic amount of a basic material such as an alkali metal hydroxide or hydrosulfide. Lubricant compositions containing these novel compounds are also described.
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