Process for the preparation of heterophasic propylene polymer compositions

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United States of America Patent

PATENT NO 9752023
APP PUB NO 20140316069A1
SERIAL NO

14358753

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Abstract

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Preparing propylene polymer compositions comprising 50 to 90% by weight of a propylene (co)polymer, and 10 to 50% by weight of an ethylene copolymer. The polymerization process includes, in the presence of a catalyst system:

    (i) a first step of polymerizing propylene to produce the propylene (co)polymer; and(ii) a successive gas-phase polymerization step performed in the presence of the propylene (co)polymer, ethylene, and one or more α-olefins to produce the ethylene copolymer.

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Patent Owner(s)

Patent OwnerAddress
BASELL POLIOLEFINE ITALIA S R LITALY MILAN MILAN MILAN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ciarafoni, Marco Ferrara, IT 74 192
Collina, Gianni Ferrara, IT 71 313
Fusco, Ofelia Ferrara, IT 37 122
Gaddi, Benedetta Ferrara, IT 36 55
Galvan, Monica Ferrara, IT 69 92
Mazzucco, Antonio Ferrara, IT 30 46
Neumann, Andreas Ferrara, IT 82 2888
Pantaleoni, Roberto Ferrara, IT 42 84

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