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US4091199A Acrylonitrile-vinyl ether-indene or coumarone polymers 失效
丙烯腈 - 乙烯基醚 - 茚或香豆酮聚合物

Acrylonitrile-vinyl ether-indene or coumarone polymers
摘要:
Polymer resins which are relatively high softening and function as gas and vapor barrier materials are composed of an olefinically unsaturated nitrile, such as acrylonitrile, a vinyl ether, such as butyl vinyl ether, and indene or coumarone.
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