Neucarbyl-substituted phosphorates

Details Neucarbyl-substituted phosphorates Neucarbyl-substituted phosphorates

1986-03-24

1988-04-19

Sutto, Anton H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Phosphorus esters

C07F 909

Patent

active

047390913

ABSTRACT:
Included is a process for the preparation of a ((neocarbyl)contrasting-halo-substituted)phosphorate comprising serially contacting (1) a phosphorus trihalide with a neocarbyl alcohol; (2) an oxirane; (3) a halogenating agent; and (4) an oxirane, under conditions sufficient to prepare the ((neocarbyl)contrasting-halo-substituted)phosphorate.The phosphate can be very pure.
Also included is a method for improving a production characteristic of flame-retardant polyurethanes. The characteristic may be selected from the group consisting of (1) processability; (2) scorch; (3) odor; (4) flame-retardant efficiency; and (5) combinations thereof. The method comprises incorporation into a polyurethane an amount effective to reduce combustibility of the foregoing phosphorate flame retardant under conditions sufficient to improve said characteristic. Also included is the flame-retardant polyurethane composition of said method. Preferably, the polyurethane is a foam, especially a flexible foam and most especially flexible slabstock foam.

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