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    POLYPROPYLENE COMPOSITION
    111.
    发明公开
    POLYPROPYLENE COMPOSITION 有权
    聚丙烯组合物

    公开(公告)号：EP2729528A1

    公开(公告)日：2014-05-14

    申请号：EP12735497.5

    申请日：2012-07-06

    Applicant: Basell Poliolefine Italia S.r.l.

    Inventor： MASSARI, Paola ,  CIARAFONI, Marco ,  CAPUTO, Tiziana

    IPC: C08L23/10

    CPC classification number: C08L23/14 ,  C08L23/0815 ,  C08L23/10 ,  C08L2312/02

    Abstract: A polyolefin composition comprising (percent by weight): A) from 65% to 75% of a propylene homopolymer or a propylene copolymer containing from 0.1% to 5.0% of ethylene derived units having a fraction soluble in Xylene at 25° C. lower than 3 wt %; B) from 25% to 35% of an ethylene copolymer containing from 3% to 12% of propylene derived units; said composition having a melt flow rate (MFR) determined according to ISO method 1133 (230° C. and 2.16 kg) comprised between 11 g/10 min and 50 g/10 min; the xylene soluble fraction ranging from 3% to 15% and the intrinsic viscosity (IV) of the xylene soluble fraction ranging from 0.8 dl/g to 2 dl/g.

    PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS
    112.
    发明公开
    PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS 有权
    步骤为气体烯烃

    公开(公告)号：EP2585501A1

    公开(公告)日：2013-05-01

    申请号：EP11726108.1

    申请日：2011-06-09

    Applicant: Basell Poliolefine Italia S.r.l.

    Inventor： BALESTRA, Enrico ,  CAPUTO, Tiziana ,  MAZZUCCO, Antonio ,  RINALDI, Riccardo ,  SOFFRITTI, Silvia

    IPC: C08F210/06 ,  C08F2/34 ,  C08F2/00

    CPC classification number: C08F2/01 ,  C08F210/06 ,  C08F2/001 ,  C08F2/34 ,  C08F210/14 ,  C08F210/16

    Abstract: A process for the gas-phase copolymerization of: (a)propylene, (b) at least one C
    4 -C
    8 α-olefin, and (c) optionally ethylene, the process being carried out in a reactor having two interconnected polymerization zones, wherein the growing polymer particles flow through the first of said polymerization zones (riser) under fast fluidization conditions, leave said riser and enter the second of said polymerization zones (downcomer) through which they flow downward in a densified form, leave said downcomer and are reintroduced into said riser, thus establishing a circulation of polymer between the riser and the downcomer, the gas mixture present in the riser being at least partially prevented from entering the downcomer by introducing into the upper part of said downcomer a liquid barrier having a composition different from the gaseous mixture present in the riser and comprising at least one C
    4 -C
    8 α-olefin in a total amount of from 0.1% to 35% by mol.

    PROPYLENE POLYMER COMPOSITIONS
    114.
    发明公开
    PROPYLENE POLYMER COMPOSITIONS 有权
    丙烯聚合物组合物

    公开(公告)号：EP2432833A1

    公开(公告)日：2012-03-28

    申请号：EP10716341.2

    申请日：2010-04-29

    Applicant: Basell Poliolefine Italia S.r.l.

    Inventor： MASSARI, Paola ,  CIARAFONI, Marco ,  BIONDINI, Gisella ,  CAPUTO, Tiziana

    IPC: C08L23/14

    CPC classification number: C08L23/142 ,  C08L2201/10 ,  C08L2205/02 ,  C08L2666/06

    Abstract: A propylene composition comprising (percent by weight): A) 60%-90%, of a crystalline propylene copolymer containing from 3.5% to 10% of ethylene derived units and having a melting temperature Tm (measured by DSC on the as-reactor polymer) ranging from 146° to 160°C; B) 10%-40%, of a copolymer of propylene containing from 15% to 30%, of ethylene derived units.

    Abstract translation: 一种丙烯组合物，其包含（重量百分数）：A）60％-90％的结晶丙烯共聚物，其含有3.5％至10％乙烯衍生单元并具有熔融温度Tm（通过DSC测量，作为反应器聚合物 ）范围从146°到160°C; B）10％-40％的含有15％至30％乙烯衍生单元的丙烯共聚物。

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