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US 7,659,355 B2Granted
Elastomeric compositions, air barriers, and processes for the making the same
AssigneeExxonMobil Chemical Patents Inc.
InventorsWalter Harvey Waddell, David Yen-Lung Chung
Life of this patent
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Abstract
The invention relates to novel air barriers made from elastomeric compositions. In particular, the invention relates to novel air barriers such as innerliners, air sleeves, and innertubes made from novel C4 to C7 isoolefin based polymers with new sequence distributions or that are substantially free of long chain branching.
Claims31
A cured elastomeric composition comprising:
- i. a copolymer comprising an isoolefin and a multiolefin,
- ii. the copolymer having a g′vis.avg. from greater than or equal to 0.978 as determined by triple detection SEC.
Dependencies are inferred from the claim text.