Method of producing composite materials, stratiform composites, and containers made therefrom
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United States of America Patent
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Apr 28, 1998
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N/A
app pub date -
Dec 21, 1995
filing date -
Feb 14, 1995
priority date (Note) -
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Abstract
A composite stratiform material (1) having at least three interfused layers and comprising: (I) a carried layer (10) formed of a mixture containing polypropylene and a particulate organic filler; (II) a first outer layer (12) interfused with said carrier layer at a first interface (11) and consisting essentially of a mixture containing polypropylene and an inorganic filler; and (III) a second outer layer (14) interfused with said carrier layer at a second interface (13) located opposite said first interface (11) and consisting essentially of a mixture containing polypropylene and an inorganic filler.
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