C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
C07F 9/12 (2006.01)
Patent
CA 2070123
Case EP-6351 ORGANIC PHOSPHATES AND THEIR PREPARATION 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 resorcinol 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.
Corporation Ethyl
Macrae & Co.
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