Copolyesters having an improved combination of properties
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United States of America Patent
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May 25, 1993
Grant Date -
N/A
app pub date -
Dec 20, 1991
filing date -
Dec 24, 1990
priority date (Note) -
Expired
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Abstract
Copolyesters having an improved combination of barrier, mechanical, thermal and rheological properties and consisting of acylic and glycolic radicals, wherein the acylic radicals derive from at least isophthalic acid and 2,6-naphthalene dicarboxylic acid and at least 90% by mols of the glycolic radicals derive from ethylene glycol.
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