Novel methods for the preparation of iir based graft copolymers

Details Novel methods for the preparation of iir based graft copolymers Novel methods for the preparation of iir based graft copolymers

C - Chemistry, Metallurgy

08

F

C08F 279/02 (2006.01) C08C 19/28 (2006.01)

Patent

CA 2551997

Preparation of butyl rubber based graft co-polymers from halobutyl elastomers using phase transfer catalysts in the presence of a solution of an alkali metal salt of an oxygen or sulfur nucleophile that is bound to a polymeric substrate. Graft co-polymers can be produced of a butyl polymer (isobutene-co-isoprene) and polymeric substrates such as polyethylene, polypropylene, polystyrene, polybutadiene, polysilanes, polysiloxanes, polyethylene glycol, polyethylene oxide, polyphosphazenes, polyferrocenes or their hybrids.

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