Blends of medium density polyethylene with other polyolefins
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United States of America Patent
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Issued Date -
Jun 22, 2006
app pub date -
Dec 21, 2004
filing date -
Dec 21, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
It has been discovered that the properties of sheet or film materials of medium density polyethylene made using a metallocene catalyst (mMDPE) can be improved by blending the mMDPE with a second polyolefin. The second poly-olefin may be a low density polyethylene (LDPE) or a second, different medium density polyethylene (2dMDPE). Improvements include, but are not necessarily limited to, reduced motor amps, a reduction in sealing temperature, and an increase in machine direction tear resistance as compared with an identical material absent the second polyolefin. These sheet or film materials may be co-extruded with other resins or laminated with other materials after extrusion.
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