Elastomeric copolymers, copolymer compositions, and their use in articles
A technology of copolymers and polymers, applied in the field of elastomer copolymers, can solve problems such as the influence of other properties of polymers
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[0149] A. A copolymer of an isoolefin having 4 to 7 carbon atoms and an alkylstyrene having a substantially uniform composition distribution and comprising from about 8 to about 12% by weight of an alkylstyrene and from about 1.1 to about 1.5 wt% halogen and wherein said copolymer has a Mw / Mn ratio of less than about 6;
[0150] B. The copolymer of embodiment A, wherein the halogen is selected from chlorine or bromine;
[0151] C. The copolymer of embodiment A or B, wherein said alkylstyrene is p-methylstyrene and said isoolefin comprises isobutylene;
[0152] D. The copolymer of any of the above embodiments A-C, wherein the alkylstyrene is functionalized with a halogen, and up to 25 mole % of the alkylstyrene is so functionalized;
[0153] E. The copolymer of embodiment D, wherein 10-25 mol % of said alkylstyrene is halogen functionalized;
[0154] F. The copolymer of any of the preceding embodiments A-E, wherein said copolymer is blended with a second polymer to form a com...
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