HALOGENATED ELASTOMERIC COMPOSITIONS SHOWING ELEVATED VISCOSITY Russian patent published in 2007 - IPC C08L23/28 C08K5/17 C08F8/32 

FIELD: polymer materials.

SUBSTANCE: invention relates to elevated-viscosity halogenated elastomers as constituents of thermoplastic composition,. The latter comprises thermoplastic material and at least one isoolefin copolymer including unit derived from halomethylstyrene, which are mixed with at least one hindered amine or phosphine of formula R₁R₂R₃N or R₁R₂R₃P. In a preferred embodiment, R₁,_{R2, andR3 represent lower and higher alkyl groups. Thus obtained ionically bound amine- or phosphine-modified elastomers are suitable for preparing thermoplastic mixed elastomeric compositions.}

EFFECT: improved mixing homogeneity due to elevated viscosity of copolymer and formation of finer dispersion of one polymer system in the matrix of another polymer system.

20 cl, 10 tbl, 5 ex