Stiff, strong, tough glass-filled olefin polymer
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United States of America Patent
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Jun 29, 1999
Grant Date -
N/A
app pub date -
Mar 14, 1997
filing date -
Mar 15, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A tough, strong, stiff glass-filled polyolefin composition comprises a propylene polymer having an nmr tacticity index of at least 94 and a molecular weight distribution of about 7 to 15; a stiffness-enhancing amount of glass fiber; an impact-modifying amount of a plastomer copolymer of ethylene with a C.sub.4 -C.sub.6 alpha-olefin having a density of about 0.865 to about 0.910 g/cc; and a functionalized olefin polymer in a sufficient amount to act as a compatibility agent between polymeric materials and the glass fiber.
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