Hydroxy-functional poly(ether sulfonamides) as thermoplastic barrier resins
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United States of America Patent
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Sep 22, 1992
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N/A
app pub date -
Jun 21, 1991
filing date -
Jun 21, 1991
priority date (Note) -
Expired
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Abstract
Hydroxy-functional poly(ether sulfonamides) prepared by polymerizing an N,N'-dialkyl or N,N'-diaryldisulfonamide with a diepoxide in the presence of a suitable catalyst exhibit high barrier properties. These are suitable for use in the manufacture of articles such as rigid containers and flexible films exhibiting high barrier to oxygen.
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