Elastomeric polypropylene and other polyolefin elastomers, metallocene catalyst and method of ion preparation
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United States of America Patent
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Jul 17, 2001
Grant Date -
N/A
app pub date -
May 13, 1998
filing date -
Feb 22, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed are a thermoplastic elastomeric polypropylene (and other olefin homopolymerized polymers) made using a metallocene catalyst and a single olefin monomer, and a method of preparing the same to produce a chain of alternating stereo regular crystallizable segments and stereo-irregular non-crystallizable polymerized segments, the former acting as physical crosslinks between tee non-crystallizable segments to form a thermoplastic elastomeric material having good elastomeric properties.
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