Process for halogenation of butadiene polymer in the presence of

Details Process for halogenation of butadiene polymer in the presence of Process for halogenation of butadiene polymer in the presence of

1982-04-05

1983-09-20

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253591, 5253323, C08F 822

Patent

active

044057598

ABSTRACT:
Butadiene polymer dissolved in solvent is reacted with chlorine, bromine or a mixture thereof in the presence of aluminum-containing material to produce halogenated butadiene polymer. The presence of the aluminum-containing material reduces crosslinking of the halogenated butadiene polymer product. Exemplary aluminum-containing materials are trialkyl aluminum, dialkyl aluminum halide, alkyl aluminum dihalide, alkyl aluminum sesquihalide, aluminum trihalide and their mixtures. The preferred butadiene polymer starting material is polybutadiene having at least about 90 mole percent cis-1,4-configuration.

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