ULTRASOFT POLYOLEFIN COMPOSITION
    143.
    发明公开

    公开(公告)号:US20240059885A1

    公开(公告)日:2024-02-22

    申请号:US18265813

    申请日:2021-11-25

    Abstract: A polyolefin composition made from or containing:



    (I) 50-95% by weight of a heterophasic polyolefin composition made from or containing:
    (A) 10-40% by weight of a propylene polymer selected from the group consisting of propylene homopolymers and copolymers of propylene with an alpha-olefin, having 1.0-6.0% by weight of units deriving from the alpha-olefin, wherein the propylene polymer (A) having a melt flow rate (MFRA) ranging from 20 to 60 g/10 min.; and
    (B) 60-90% by weight of a copolymer of propylene with an alpha-olefin, having 20-35% by weight of units deriving from the alpha-olefin,
    wherein the fraction of the heterophasic polyolefin composition (I) soluble in xylene at 25° C. (XS(I)) is equal to or higher than 60% by weight; and
    (II) 5-50% by weight of a propylene-ethylene copolymer having 12-25% by weight of units deriving from ethylene.

    POLYOLEFIN COMPOSITIONS OBTAINED FROM RECYCLED POLYOLEFINS

    公开(公告)号:US20240010823A1

    公开(公告)日:2024-01-11

    申请号:US18037942

    申请日:2021-11-15

    CPC classification number: C08L23/12 C08L2205/03 C08L2207/20

    Abstract: A polypropylene composition made from or containing (a) from 45 to 90 wt % of a propylene polymer optionally containing up to 7 wt % of ethylene, based upon the total weight of the propylene polymer, and having a melt flow rate (ISO 1133 230° C./2.16 kg) ranging from 0.5 to 5 g/10 min; and (b) from 10 to 55 wt % of a multicomponent recycled composition containing (b1) at least 70 wt % by weight of a propylene polymer containing from 1 to 7 wt % of ethylene, based upon the total weight of the propylene polymer and (b2) from 5 to 30 wt % of a styrenic block copolymer (SBC).

    PEELABLE COMPOSITION
    146.
    发明公开

    公开(公告)号:US20240002646A1

    公开(公告)日:2024-01-04

    申请号:US18037224

    申请日:2021-11-03

    Abstract: A 1-butene copolymer composition made from or containing:



    A) from 75.0 wt % to 95.0 wt % of a polymer composition (A) made from or containing
    A1) from 56 wt % to 77 wt % of a propylene ethylene copolymer;
    A2) from 15 wt % to 32 wt % of a low density polyethylene; and
    A3) from 4 wt % to 17 wt % of a 1-butene homopolymer,

    wherein the sum of the amounts of A1, A2, and A3 being 100 wt %; and

    B) from 5.0 wt % to 25.0 wt % of a copolymer of 1-butene and ethylene containing from 2.8 wt % to 4.2 wt % of ethylene derived units, based upon the total weight of the copolymer of 1-butene and ethylene,

    wherein the sum of the amounts of A) and B) being 100 wt %.

    POLYPROPYLENE COMPOSITION
    147.
    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 %.

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