Organic phosphates and their use as wear inhibitors

Details Organic phosphates and their use as wear inhibitors Organic phosphates and their use as wear inhibitors

C - Chemistry, Metallurgy

10

M

C10M 137/04 (2006.01)

Patent

CA 2070131

Case EI-6349+ ORGANIC PHOSPHATES AND THEIR USE AS WEAR INHIBITORS Abstract of the Disclosure Compositions comprising a combination of (i) at least one hydrocarbon-soluble aryl phosphate of the formula (RO)3PO wherein each R is, independently, phenyl or an alkyl- substituted phenyl group; and (ii) at least one hydrocarbon- soluble aryl polyphosphate of the formula Image wherein each R is, independently, phenyl or an alkyl- substituted phenyl group, Ar is m-phenylene or an alkyl- substituted m-phenylene group, and n is from 1 to 4. The combination contains from 2 to 30% by weight of component (i). These compositions are made by (a) reacting about 1.9 to about 2.1 equivalents of phenol or alkyl-substituted phenol with one equivalent of phosphoryl trihalide, and (b) reacting the intermediate product formed in (a) with from about 0.9 to about 1.1 equivalents of resorcinol or alkyl- substituted rasorcinol per equivalent of phosphoryl triha- lide employed in (a). Alternatively, the compositions are made by (a) reacting about 0.9 to about 1.1 equivalents of resorcinol or alkyl-substituted resorcinol with one equivalent of phosphoryl trihalide, and (b) reacting the intermediate product formed in (a) with from about 1.9 to about 2.1 equivalents of phenol or alkyl-substituted phenol per equivalent of phosphoryl trihalide employed in (a). The compositions are useful as wear inhibitors for fuels and lubricants and as flame retardants for polymeric materials.

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