| 摘要 |
Case EP-6351 ORGANIC PHOSPHATES AND THEIR PREPARATION 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 alkylsubstituted phenyl group; and (ii) at least one hydrocarbonsoluble aryl polyphosphate of the formula wherein each R is, independently, phenyl or an alkylsubstituted phenyl group, Ar is m-phenylene or an alkylsubstituted 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 alkylsubstituted resorcinol per equivalent of phosphoryl trihalide 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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