Polysar Limited

John Walker

Douglas C Edwards

Eric G Kent

Sheikh A Mohammed

John Timar

There is provided a tubeless pneumatic tire with an inner liner having puncture sealing characteristics comprising as the inner liner a puncture sealing laminate having an outer halobutyl polymer containing layer and an inner polymer containing layer, the inner layer of the laminate having been reacted with a zinc peroxide compound.

Pneumatic tire inner liner having puncture sealing characteristics

Mineral oil compositions of improved characteristics comprise a major proportion of a mineral oil and a minor proportion of an isobutylene polymer containing bound 2,6-di-t-butyl phenol groups.

Mineral oil compositions with an isobutylene polymer containing bound

Bromobutyl alone or blended with other free radical curable polymers or with free radical curable monomers can be vulcanized by heating in the presence of free radical agents.

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Sarnia, Canada

John Walker