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    CORE-SKIN FIBER COMPRISING PROPYLENE ETHYLENE RANDOM COPOLYMER
    1.
    发明申请
    CORE-SKIN FIBER COMPRISING PROPYLENE ETHYLENE RANDOM COPOLYMER 审中-公开

    公开(公告)号：WO2020249387A1

    公开(公告)日：2020-12-17

    申请号：PCT/EP2020/064489

    申请日：2020-05-26

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： DE PALO, Roberto ,  LEMAIRE, Renaud ,  MARTI PORQUERES, Jaume

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

    Abstract: A skin-core fiber wherein the skin comprises a propylene ethylene copolymer having: : i) xylene soluble fraction from 14 wt% to 27 wt% ii) intrinsic viscosity of the fraction soluble in xylene at 25°C from 1.0 to 2.4 dl/g; iii) melt flow rate, MFR, from 1.0 g/10 min to 50.0 g/10 min; iv) an ethylene content from 5.0 wt% to 12.0 wt% v) the ethylene content on the fraction insoluble in xylene from 2.5 wt% to 6.0 wt%; vi) the ethylene content on the fraction soluble in xylene ranging from 15.2. wt% to 30.2 wt% vii) the C 13 NMR sequences PEP on the fraction insoluble in xylene from 3.5mol% to 5.5mol% and the sequences PEP on the fraction soluble in xylene from 11.0 mol% to 14.2 mol%; the core of the fiber comprises a polyethylene having a density between 0.940 g/cm 3 to 0.975 g/cm 3 .

    PROPYLENE POLYMER FIBERS
    3.
    发明申请
    PROPYLENE POLYMER FIBERS 审中-公开

    公开(公告)号：WO2020244912A1

    公开(公告)日：2020-12-10

    申请号：PCT/EP2020/063778

    申请日：2020-05-18

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： DE PALO, Roberto ,  MARTI PORQUERES, Jaume ,  LEMAIRE, Renaud ,  CAVALIERI, Claudio

    IPC: D01F6/06 ,  C08F110/06

    Abstract: The use of a propylene homopolymer for producing fibers; wherein the propylene homopolymer is characterized in that: - the melting point ranges from 150°C to 164°C; - the fraction soluble in xylene at 25°C is comprised between 6.0 wt% and 2.0 wt%; - the fraction soluble in acetone 25°C is comprised between 0.5 wt% and 2.0 wt%; - the ratio fraction soluble in xylene at 25°C/ fraction soluble in acetone 25°C is comprised between 30 wt% and 60 wt%; - the polydispersity index ranges from 2.8 to 4.5 the melt flow rate (ISO 1133, 230 °C/2.16 kg) is comprised between 2 to 40 g/10min.

    POLYOLEFIN FIBRES
    4.
    发明申请
    POLYOLEFIN FIBRES 审中-公开

    公开(公告)号：WO2020127296A1

    公开(公告)日：2020-06-25

    申请号：PCT/EP2019/085692

    申请日：2019-12-17

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： DE PALO, Roberto ,  MUSACCHI, Gianluca ,  LEMAIRE, Renaud ,  MARTI PORQUERES, Jaume

    IPC: C08L23/12 ,  C08L23/14 ,  D01F6/46

    Abstract: A polyolefin composition for preparing fibres, comprising: A) 60-95% by weight of a propylene homo- or copolymer, or mixture of said homo- or copolymer; B) 5-40% by weight of a copolymer of butene-1 or a butene-1 polymer composition having: - a Melt Flow Rate value of from 20 to 100 g/10 min., measured according to ISO 1133 at 190°C with a load of 2.16 kg; - a copolymerized comonomer content from 4% to 15% by mole, referred to the total weight of B); - a Mw/Mn value equal to or lower than 4; - flexural modulus of 80 MPa or higher.

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