POLYPROPYLENE COMPOSITION
    151.
    发明公开

    公开(公告)号:US20230383107A1

    公开(公告)日:2023-11-30

    申请号:US18032531

    申请日:2021-10-06

    CPC classification number: C08L23/12 C08L2205/025

    Abstract: A polypropylene composition made from or containing:



    A) from 76 wt % to 95 wt % of a propylene homopolymer having:

    fraction soluble in xylene at 25° C. between 2.0 wt % and 4.5 wt %; and
    melt flow rate ranging from 60.0 to 110.0 g/10 min; and


    B) from 5 wt % to 24 wt % of a copolymer of propylene and ethylene containing from 75 wt % to 90.0 wt % of ethylene derived units;
    wherein the polypropylene composition has
    content of ethylene derived units in the fraction soluble in xylene at 25° C. lower than the content of ethylene derived units of component B) and ranging from 51.0 wt % to 74.0 wt %; and
    at least two melting points, wherein the higher melting points ranges from 156.0° C. to 166.0° C. and the lower melting point ranges from 90.0° C. to 125.0° C.;
    wherein the sum of the amounts of component A) and B) being 100 wt %.

    SCRATCH RESISTANT POLYOLEFIN COMPOSITION

    公开(公告)号:US20220348751A1

    公开(公告)日:2022-11-03

    申请号:US17641226

    申请日:2020-08-28

    Abstract: An injection molded article made from or containing a propylene-based composition made from or containing: T1) from 90 wt % to 50 wt % of a propylene homopolymer; and T2) from 10 wt % to 50 wt % of a polymer composition made from or containing A) 5-35% by weight of a propylene homopolymer or a propylene ethylene copolymer; B) 20-50% by weight of a copolymer of ethylene and a C3-C8 alpha-olefin containing from 0.1% to 20% by weight of alpha-olefin units; and C) 30-60% by weight of a copolymer of ethylene and propylene containing from 25% to 75% by weight of ethylene units.

    PROPYLENE-BASED COMPOSITION FOR PIPES

    公开(公告)号:US20220340744A1

    公开(公告)日:2022-10-27

    申请号:US17763094

    申请日:2020-09-04

    Abstract: A polyolefin composition made from or containing a first heterophasic polyolefin polymer A) made from or containing a first crystalline propylene homopolymer matrix, a first propylene ethylene copolymer having an ethylene content ranging from 20.0 wt% up to 35.0 wt%, a second propylene ethylene copolymer having an ethylene content ranging from 55.0 wt% up to 70.0 wt%, and a second heterophasic polyolefin polymer B) made from or containing a second crystalline propylene homopolymer matrix, an ethylene C4-C10 α-olefin copolymer having an ethylene content ranging from 65.0 wt% up to 85.0 wt%, and a third propylene ethylene copolymer having an ethylene content ranging from 40.0 wt% up to 50.0 wt%.

    FIBER COMPRISING PROPYLENE ETHYLENE RANDOM COPOLYMER

    公开(公告)号:US20220228298A1

    公开(公告)日:2022-07-21

    申请号:US17617325

    申请日:2020-05-26

    Abstract: A fiber of a 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; iii) melt flow rate, MFR, ranging from 12 g/10 min to 60 g/10 min; iv) an ethylene derived units content ranging from 5.0 wt % to 12.0 wt %; v) the ethylene derived units content of the fraction insoluble in xylene at 25° C. ranging from 2.5 wt % to 6.0 wt %; vi) the ethylene derived units content of the fraction soluble in xylene at 25° C. ranging from 15.2. wt % to 30.2 wt % vii) C13 NMR sequences PEP measured on the fraction insoluble in xylene at 25° C. ranging from 3.5 mol % to 5.5 mol %; and viii) the C13 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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