The Dow Chemical Company

Donna J Fielding

Chester E Pawloski

David J Wampfler

Included are the title phosphorate compounds, and a process to prepare them comprising contacting a carbylphosphorate mono acid halide with a carbyloxide. For example, ((2-(3-bromo-2,2-bis(bromomethyl)propoxy)ethyl(chloroethyl)-(ethyl))phosph orate can be prepared with (2-(3-bromo-2,2-bis(bromomethyl)propoxy)ethyl)(ethyl)-chloridophosphorate and ethylene oxide. The compounds are useful so-called flame-retardants for polyurethanes, especially flexible foams because, for example, substantially non-scorching and non-odoriferous flame-retardant flexible foams can be readily prepared with the compounds.

(Haloneocarbyl-substituted)(aliphatic or oxyaliphatic)(halogenated

Included are the title phosphorate compounds, and a process to prepare them comprising contacting a carbylphosphorate mono acid halide with a carbyloxide. For example, ((2-(3-bromo-2,2-bis(bromomethyl)propxy)ethyl(chloroethyl)-(ethyl))phospho rat e can be prepared with (2-(3-bromo-2,2-bis(bromomethyl)propoxy)ethyl)(ethyl)chloridophosphorate and ethylene oxide. The compounds are useful so-called flame-retardants for polyurethanes, especially flexible foams because, for example, substantially non-scorching and non-odoriferous flame-retardant flexible foams can be readily prepared with the compounds.

(Haloneocarbyl-substituted)(aliphatic or oxyaliphatic)halogenated

A method for improving a production characteristic of flame-retardant polyurethanes. The characteristic may be selected from the group consisting of

Halogenated phosphorate ethers with flame-retardant polyurethanes

Included are the title phosphorate compounds, and a process to prepare them comprising contacting a carbylphosphorate acid halide with a carbyloxide. For example, (3-chloro-2,2-bis(bromomethyl)propyl)bis(ethyl)phosphorate can be prepared with 3,3-bis(bromomethyl)oxetane and bis(ethyl)chloridophosphorate. The compounds are useful flame retardants for polyurethanes, especially flexible foams because, for example, substantially non-scorching and non-odoriferous flame-retardant flexible foams can be readily prepared with the compounds. Also included is a method for inducing scorch in polyurethanes, which can be used to generally determine polyurethane formulations which are prone to not scorch in commercial production.

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Midland, MI, United States of America

Donna J Fielding