Ungelled polyamine-polyepoxide resins
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United States of America Patent
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Jun 17, 1997
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app pub date -
Apr 12, 1996
filing date -
Feb 4, 1988
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Abstract
An ungelled thermoplastic resin having gas barrier properties and containing at least 7 percent by weight of amine nitrogen is derived via the reaction of a polyamine devoid of oxyalkylene moieties and containing up to about two primary amino nitrogen groups per molecule and a polyepoxide in a molar ratio of polyamine to polyepoxide of from 1.4:1 to 0.83:1.
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