Method for producing brominated and halohydrated polymers

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United States of America Patent

PATENT NO 10457751
APP PUB NO 20180002455A1
SERIAL NO

15542424

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
THE DOW CHEMICAL COMPANY2030 DOW CENTER MIDLAND MI 48674

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hull,, Jr John W Midland, US 23 60
Kram, Shari Midland, US 5 0
Porter, Michal Elizabeth Midland, US 4 1
Stobby, William G Ann Arbor, US 44 476

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