Butyl Rubbers

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Butyl Rubber IIR is a copolymer of isobutylene and a small amount of isoprene. Bromobutyl Rubber BIIR is a brominated copolymer of isobutylene and a isoprene. chlorobutyl Rubber CIIR is a chlorinated copolymer of isobutylene and a isoprene.

Classification
Grade Mooney Viscocity ML(1+4) AN(%) Key Features Purpose
BK-1675 - - - -
RB-301 - - - -
BROMO X2 - - - -
CB-1240 - - - -