Polypropylene composition
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United States of America Patent
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Issued Date -
Oct 18, 2001
app pub date -
Mar 1, 2001
filing date -
Mar 17, 2000
priority date (Note) -
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Abstract
Provided is a polypropylene composition which is a molding material having good flexibility and good elastic recovery. The polypropylene composition comprises from 1 to 99% by weight of elastomeric polypropylene obtained through (co)polymerization of propylene or propylene and olefin except propylene in the presence of a metallocene catalyst (A) that comprises a metallocene compound (A), an activator compound and optionally an organoaluminum compound, or of a supported metallocene catalyst (A) that comprises the metallocene catalyst (A) supported on a particulate carrier, or of a catalyst that comprises tetraneophyl zirconium supported on alumina, and from 1 to 99% by weight of atactic polypropylene totaling 100% by weight.
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