Method for producing brominated and halohydrated polymers
Conjugated diene polymers such as a styrene-butadiene copolymer are sequentially brominated by reaction with a quaternary ammonium tribromide or quaternary phosphonium tribromide and halohydrated by reaction with an N-haloimide compound. This produces a brominated and halohydrated polymer with very good thermal stability. The product is useful as a flame retardant in a variety of polymer systems.
DDP SPECIALTY ELECTRONIC MATERIALS US, INC.
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William G. John W. Michal Elizabeth Shari
Stobby Hull, Jr. Porter Kram