Propylene polymer fibers
    11.
    发明授权

    公开(公告)号:US12291628B2

    公开(公告)日:2025-05-06

    申请号:US17616854

    申请日:2020-05-18

    Abstract: A process for preparing fibers made from or containing propylene homopolymer having: a melting point ranging from 150° C. to 164° C.; a fraction soluble in xylene at 25° C. between 6.0 wt % and 2.0 wt %; a fraction soluble in acetone 25° C. between 0.5 wt % and 2.0 wt %; a ratio fraction soluble in xylene at 25° C./fraction soluble in acetone 25° C. between 0.30 and 0.60; a polydispersity index ranging from 2.8 to 4.5; and a melt flow rate (ISO 1133, 230° C./2.16 kg) between 2 to 40 g/10 min.

    Fiber comprising propylene ethylene random copolymer

    公开(公告)号:US11840775B2

    公开(公告)日:2023-12-12

    申请号:US17617325

    申请日:2020-05-26

    CPC classification number: D01F6/30 C08F210/06 D01F8/06 C08F2800/20

    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 %.

    SOFT AND FLEXIBLE POLYOLEFIN COMPOSITION
    15.
    发明公开

    公开(公告)号:US20230279209A1

    公开(公告)日:2023-09-07

    申请号:US18019907

    申请日:2021-07-01

    Abstract: A polyolefin composition made from or containing:



    (A) 10-40% by weight of a copolymer of propylene with hexene-1, is made from or containing 1.0-6.0% by weight, based on the weight of (A), of units deriving from hexene-1 and has a melt flow rate (MFRA) measured according to ISO 1133, 230° C., 2.16 kg ranging from 20 to 60 g/10 min.; and
    (B) 60-90% by weight of a copolymer of propylene with an alpha-olefin of formula CH2═CHR, and optionally a diene, wherein R is H or a linear or branched C2-C8 alkyl and wherein the copolymer is made from or containing 20-35% by weight, based on the total weight of (B), of alpha-olefin,

    wherein

    the polyolefin composition has an amount of fraction soluble in xylene (XS(tot)) at 25° C. equal to or higher than 65% by weight, and

    the amounts of (A), (B), and XS(tot) being based on the total weight of (A)+(B).

    Compositions obtained from recycled polyolefins

    公开(公告)号:US11708484B2

    公开(公告)日:2023-07-25

    申请号:US16758758

    申请日:2018-11-05

    Abstract: A polyolefin composition made from or containing:
    T1) 70-95 wt %, a polyolefin component containing:
    a1) from 30 wt % to 70 wt % of a propylene based polymer; and
    a2) from 30 wt % to 70 wt % of an ethylene based polymer;
    the sum of a1) and a2), being referred to the total weight of a1) and a2), being 100; and
    T2) 5-30 wt % of a propylene ethylene copolymer containing from 2.0 wt % to 10.0 wt %; of ethylene derived units and having a melt flow rate (230° C./2.16 kg) ranging from 0.5 to 20.0 g/10 min, and having a fraction soluble in xylene at 25° C. lower than 20 wt %.

    the sum of the amount of T1) and T2), being referred to the total weight of T1) and T2), being 100.

    Propylene ethylene random copolymer

    公开(公告)号:US11186664B2

    公开(公告)日:2021-11-30

    申请号:US16647672

    申请日:2018-08-30

    Abstract: 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 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 %; vi) the ethylene derived units content on the fraction soluble in xylene at 25° C. ranging from 15.2. wt % to 30.2 wt %; and 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 C13 NMR sequences PEP measured on the fraction soluble in xylene at 25° C. ranging from 11.0 mol % to 14.2 mol %.

    Film comprising a polyolefin composition

    公开(公告)号:US10654999B2

    公开(公告)日:2020-05-19

    申请号:US16300634

    申请日:2017-05-09

    Abstract: The disclosure provides a film made from or containing a polyolefin composition made from or containing A) 5-35% by weight, based upon the total weight of the polyolefin composition, of a propylene homopolymer or a propylene ethylene copolymer; B) 25-50% by weight, based upon the total weight of the polyolefin composition, 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, based upon the total weight of the polyolefin composition, of a copolymer of ethylene and propylene containing from 25% to 75% by weight of ethylene units.

    Propylene-based copolymer composition for pipes

    公开(公告)号:US10160849B1

    公开(公告)日:2018-12-25

    申请号:US15514797

    申请日:2015-09-09

    Abstract: The present disclosure relates to a polyolefin composition comprising, in some embodiments: A) 90.0-99.0 wt % of a propylene homopolymer; B) f1.0-10.0 wt % of a propylene/ethylene copolymer composition comprising: b1) 14-52 wt % of a propylene homopolymer or a propylene/ethylene copolymer; b2) 48-86 wt % of a propylene ethylene copolymer comprising an ethylene derived units content of 20.0-55.0 wt %; wherein the resulting polyolefin composition has a melt flow rate (MFR; ISO 1133, 230° C., 5 kg) of 0.2-4.0 g/10 min; the sum of A+B equals 100% by weight and the sum of b1+b2 equals 100% by weight.

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