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    PROCESS FOR GAS-PHASE POLYMERIZATION OF OLEFINS
    2.
    发明申请
    PROCESS FOR GAS-PHASE POLYMERIZATION OF OLEFINS 审中-公开

    公开(公告)号：WO2018177701A1

    公开(公告)日：2018-10-04

    申请号：PCT/EP2018/055537

    申请日：2018-03-07

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： MEI, Gabriele ,  MAZZUCCO, Antonio ,  CAPUTO, Tiziana ,  BALESTRA, Enrico ,  TARTARI, Davide ,  MASSARI, Paola

    IPC: C08F2/00 ,  C08F2/01 ,  C08F2/34 ,  C08L23/10

    Abstract: Process for the preparation of heterophasic propylene copolymer compositions (RAH ECO) comprising a random propylene copolymer (RACO) and an elastomeric propylene copolymer (BlPO), the process being carried out in a reactor having two interconnected polymerization zones, a riser and a down- comer, wherein the growing polymer particles: (a) flow through the first of said polymerization zones, the riser, under fast fluidization conditions in the presence of propylene and of ethylene and/or an alpha-olefin having from 4 to 10 carbon atoms, thus obtaining the random propylene copolymer (RACO); (b) leave the riser and enter the second of said polymerization zones, the downcomer, through which they flow downward in a densified form in the presence of propylene and of ethylene and/or an alpha-olefin having from 4 to 10 carbon atoms, wherein the concentration of ethylene and/or of the alpha-olefin in the downcomer is higher than in the riser, thus obtaining the elastomeric propylene copolymer (Bl PO); (c) leave the downcomer and are reintroduced into the riser, thus establishing a circulation of polymer between the riser and the downcomer.

    PROCESS FOR GAS-PHASE POLYMERIZATION OF OLEFINS
    3.
    发明申请
    PROCESS FOR GAS-PHASE POLYMERIZATION OF OLEFINS 审中-公开

    公开(公告)号：WO2019057595A1

    公开(公告)日：2019-03-28

    申请号：PCT/EP2018/074705

    申请日：2018-09-13

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： MAZZUCCO, Antonio ,  BALESTRA, Enrico ,  PANTALEONI, Roberto ,  TARTARI, Davide ,  RINALDI, Riccardo

    IPC: C08F2/34 ,  C08F2/00 ,  C08F10/06 ,  C08F4/651 ,  C08F4/654

    Abstract: A process is disclosed for the polymerization of olefins in gas phase carried out in a reactor having two interconnected polymerization zones, a first zone (riser) and a second zone (downcomer), wherein the growing polymer particles: a) flow through the riser under fast fluidization conditions established by feeding a mixture of gas and liquid; b) leave the riser and enter the downcomer, through which they flow downward in a densified form; c) leave the downcomer and are reintroduced into the riser, thus establishing a circulation of polymer between the riser and the downcomer; and wherein the reactor is operated at a temperature which is between 0° C and 5° C above the dew point of the riser gas at the operating pressure, so that in the riser, besides the growing polymer particles and gas flow, an amount of liquid is also present.

    PROPYLENE POLYMER COMPOSITION
    5.
    发明申请
    PROPYLENE POLYMER COMPOSITION 审中-公开

    公开(公告)号：WO2023046535A1

    公开(公告)日：2023-03-30

    申请号：PCT/EP2022/075428

    申请日：2022-09-13

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： TARTARI, Davide ,  SPATARO, Stefano ,  NARDIN, Alberto ,  BASILE, Lelio

    IPC: C08F2/00 ,  C08L23/12

    Abstract: A polypropylene composition comprising: A) From 90.6 wt% to 97.0 wt%; of a propylene homopolymer having a melt flow rate, comprised between40.0 g/10 min and 100.0 g/10 min; B) From 3.0 wt% to 9.4 wt%; of a propylene ethylene copolymer having an ethylene content ranging from 22 wt% to 38 wt%; said polypropylene composition having: i) xylene soluble fraction at 25°C ranging from 5 wt% to 13.0 wt%; ii) the ethylene content on the fraction insoluble in xylene at 25°C ranging from 0.3 wt% to 1.6 wt%; iii) the ethylene content on the fraction soluble in xylene at 25°C ranging from 17.2 wt% to 27.0 wt% (iv) melt flow rate, MFR, comprised between 80.0 g/10 min and 150.0 g/10 min.

    PROPYLENE POLYMER COMPOSITION
    6.
    发明申请
    PROPYLENE POLYMER COMPOSITION 审中-公开

    公开(公告)号：WO2021197761A1

    公开(公告)日：2021-10-07

    申请号：PCT/EP2021/055710

    申请日：2021-03-08

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： TARTARI, Davide

    IPC: C08L23/12 ,  C08F110/06 ,  C08F210/06 ,  C08L2207/02 ,  C08L2308/00 ,  C08L2314/02

    Abstract: A polypropylene composition comprising: A) From 96 wt% to 80 wt%; of a propylene homopolymer having a fraction insoluble in xylene at 25°C greater than 90 wt%; and a melt flow rate, MFR, measured according to ISO 1133 at 230°C with a load of 2.16 kg comprised between 80.0 g/10 min and 300.0 g/10 min; B) From 4 wt% to 20 wt%; of a propylene ethylene copolymer having an ethylene derived units content ranging from 18 wt% to 38 wt%; said polypropylene composition having: a melt flow rate, MFR, measured according to ISO 1133 at 230°C with a load of 2.16 kg, comprised between 80.0 g/10 min and 150.0 g/10 min; the sum of the amounts of A) and B) being 100 wt%.

    PROPYLENE ETHYLENE COPOLYMER
    8.
    发明申请
    PROPYLENE ETHYLENE COPOLYMER 审中-公开

    公开(公告)号：WO2023025622A1

    公开(公告)日：2023-03-02

    申请号：PCT/EP2022/072854

    申请日：2022-08-16

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： TARTARI, Davide ,  MOSCARDI, Gilberto ,  GALVAN, Monica

    IPC: C08F210/06 ,  C08L23/14 ,  B32B27/32 ,  C08F2/34 ,  C08F2/00

    Abstract: A propylene ethylene copolymer having: i) xylene soluble fraction at 25°C ranging from 30 wt% to 48 wt%; ii) intrinsic viscosity of the fraction soluble in xylene at 25°C ranging from 2.8 to 4.3 dl/g; iii) melt flow rate, MFR, measured according to ISO 1133 at 230 °C with a load of 2.16 kg, ranging from 0.2 g/10 min to 10 g/10 min; iv) an ethylene derived units content ranging from 10.3 wt% to 15.4 wt% v) the ethylene derived units content on the fraction insoluble in xylene at 25°C ranging from 6.1 wt% to 9.0 wt%; vi) the ethylene derived units content on the fraction soluble in xylene at 25°C ranging from 18.2. wt% to 30.2 wt%; vii) the 13C-NMR sequences PEP measured on the fraction insoluble in xylene at 25°C ranging from 4.1mol% to 6.5mol% and the 13C-NMR sequences PEP measured on the fraction soluble in xylene at 25°C ranging from 10.5 mol% to 14.2 mol%.

    FIBER COMPRISING PROPYLENE ETHYLENE RANDOM COPOLYMER
    10.
    发明申请
    FIBER COMPRISING PROPYLENE ETHYLENE RANDOM COPOLYMER 审中-公开

    公开(公告)号：WO2020249386A1

    公开(公告)日：2020-12-17

    申请号：PCT/EP2020/064488

    申请日：2020-05-26

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： DE PALO, Roberto ,  TARTARI, Davide ,  GALVAN, Monica ,  CAVALIERI, Claudio ,  CAMURATI, Isabella Maria Vittoria

    IPC: D01F6/30 ,  C08L23/14 ,  D01F8/06 ,  C08F210/06

    Abstract: A fiber comprising a propylene ethylene copolymer, said propylene ethylene copolymer having: i) xylene soluble fraction at 25°C ranging from 14 wt% to 27 wt% ii) intrinsic viscosity of the fraction soluble in xylene at 25°C ranging from 1.0 to 2.4 dl/g; 111) melt flow rate, MFR, ranging from 1.0 g/10 min to 50.0 g/10 min; iv) an ethylene derived units content ranging from 5.0 wt% to 12.0 wt% v) the ethylene derived units content on the fraction insoluble in xylene at 25°C ranging from 2.5 wt% to 6.0 wt%; Vl) the ethylene derived units content on the fraction soluble in xylene at 25 °C ranging from 15.2. wt% to 30.2 wt% vii) the C 13 NMR sequences PEP measured on the fraction insoluble in xylene at 25°C ranging from 3.5mol% to 5.5mol% and the C 13 NMR sequences PEP measured on the fraction soluble in xylene at 25 °C ranging from 11.0 mol% to 14.2 mol%.

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