Clear, high-barrier polymer-platelet composite multilayer structures
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United States of America Patent
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May 28, 2002
Grant Date -
Jul 19, 2001
app pub date -
Dec 11, 1998
filing date -
Mar 2, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention relates to novel multilayer formed articles including, but not limited to containers such as bottles, tubes, pipes, preforms and films (including oriented films such as biaxially oriented) comprising a melt processible resin having dispersed therein a platelet filler. The multilayer formed articles have improved barrier while maintaining excellent clarity. More particularly, the multilayer structures of the present invention display haze values of less than about 2% and carrier resins which are substantially free from platelet particles having a diameter greater than about 15 microns.
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