FIELD: chemistry.
SUBSTANCE: invention relates to elastomers having improved raw compound processing properties, particularly to filled curable elastomer mixtures. The elastomer contains a halogenated copolymer of C4-C7 isoolefin and 3-20 wt % alkylstyrene, having 0.2-2 mol % haloalkylstyrene, where alkyl is selected from C1 to C5 or a branched chain alkyl, Mooney viscosity is equal 28-32, number-average molecular weight is in the range of 200000-240000, weight-average molecular weight is in the range of 320000-440000, z-average molecular weight 450000- 650000 and branching index (g') from 0.4 to 1.1.
EFFECT: filled curable rubber mixture based on the elastomer has improved processability and an article made from said mixture is characterised by high air permeability.
22 cl, 36 dwg, 11 tbl
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