Processable filled, curable halogenated isoolefin elastomers

Details Processable filled, curable halogenated isoolefin elastomers Processable filled, curable halogenated isoolefin elastomers

2011-03-15

2011-03-15

Fischer, Justin (Department: 1747)

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

C152S511000, C152S512000, C526S072000, C526S089000, C526S206000, C526S335000

Reexamination Certificate

active

07905263

ABSTRACT:
The present invention provides an elastomeric composition processable in a curable, filled rubber formulation. The composition comprises a halogenated interpolymer of a C4to C7isoolefin and from 3 to 20 weight percent alkylstyrene and comprising from 0.2 to 2 mole percent haloalkylstyrene, a Mooney viscosity less than 37, a number average molecular weight less than 270,000, a weight average molecular weight less than 470,000, a z-average molecular weight less than 700,000, and a branching index (g′) from 0.4 to 1.1. Also disclosed are a method of making a cured, filled rubber article, comprising compounding the elastomeric composition with filler and curative, processing the compounded composition to form a shape of the article, and curing the composition to obtain the article in the formed shape, as well as a tire comprising an innerliner made by the method.

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