Foamed crystalline ionomer polyolefins
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United States of America Patent
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Jul 24, 2001
Grant Date -
N/A
app pub date -
Oct 4, 1999
filing date -
Feb 10, 1998
priority date (Note) -
Expired
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Abstract
A foamed ionomer polymer comprising metal ions pertaining to the IA, IIA, or IIB Group of the Periodic Table, and a crystalline or semicrystalline graft copolymer where the backbone polymer chain of the graft copolymer is a polymer of an olefin selected from ethylene and C.sub.3 -C.sub.10 .alpha.-olefins, and the grafted chains comprise monomers containing at least one functional group selected from carboxylic groups and their derivatives.
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