Molding compositions made from a high-molecular-weight-propylene polymer
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United States of America Patent
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Apr 21, 2009
Grant Date -
Jul 27, 2006
app pub date -
Dec 19, 2003
filing date -
Dec 20, 2002
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Expired
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Abstract
Molding compositions made from a high-molecular-weight propylene polymer with a melt mass-flow rate MFR of from 0.3 to 1 g/10 min, to ISO 1133 at 230° C. and 5 kg, and with a proportion of β modification crystallites in the range from 2 to 20% by weight. The molding compositions of the invention preferably comprise a quinarcidone pigment as nucleating agent. The high-molecular-weight propylene polymer used preferably comprises a high-molecular-weight propylene copolymer with up to 30% by weight of other copolymerized olefins having up to 10 carbon atoms. One of the uses of the molding compositions of the invention is as materials for pipes.
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