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.

    POLYOLEFINS COMPOSITIONS OBTAINED FROM RECYCLED POLYOLEFINS

    公开(公告)号:US20230257562A1

    公开(公告)日:2023-08-17

    申请号:US18013443

    申请日:2021-06-17

    CPC classification number: C08L23/12 C08L2207/20 C08L2205/03 C08L2203/18

    Abstract: A polypropylene composition made from or containing:
    (a) 65 to 85 weight % of a crystalline propylene polymer having an amount of isotactic pentads (mmmm), measured by 13C-MNR on the fraction insoluble in xylene at 25° C. higher than 97.0 molar % and a polydispersity index ranging from 3 to 15;

    (b) 5 to 25 weight % of an elastomeric copolymer of ethylene and propylene, having an amount of recurring units deriving from ethylene ranging from 30 to 70 weight % and being partially soluble in xylene at ambient temperature; wherein the fraction soluble in xylene at ambient temperature having an intrinsic viscosity value from 2 to 8 dl/g; and

    (c) 5 to 25 weight % of recycled polyethylene (r-PE) having a melt flow rate (190° C./2.16 Kg) from 0.1 to 10 g/10 min,

    wherein the polypropylene composition having a melt flow rate (230° C./2.16 kg) ranging from 0.1 to 3.0 g/10 min.

    POLYOLEFINS COMPOSITIONS OBTAINED FROM RECYCLED POLYOLEFINS

    公开(公告)号:US20230250266A1

    公开(公告)日:2023-08-10

    申请号:US18013481

    申请日:2021-06-17

    CPC classification number: C08L23/12 C08L2205/03

    Abstract: A polypropylene composition made from or containing:

    (a) 65 to 85 weight % of a crystalline propylene polymer having an amount of isotactic pentads (mmmm), measured by 13C-MNR on the fraction insoluble in xylene at 25° C. higher than 97.0 molar% and a polydispersity index from 3 to 15;
    (b) 5 to 25 weight % of an elastomeric copolymer of ethylene and propylene, having an amount of recurring units deriving from ethylene ranging from 30 to 70 weight %, and being partially soluble in xylene at ambient temperature; wherein the fraction soluble in xylene at ambient temperature having an intrinsic viscosity value from 3 to 10 dl/g; and
    (c) 5 to 25 weight % of recycled polyethylene (r-PE) having a melt flow rate (190° C./2.16 Kg) from 0.1 to 10 g/10 min,

    wherein the polypropylene composition having a melt flow rate (ISO 1133 230° C./2.16 kg) higher than 3.0 to 15 g/10 min.

    Multimodal copolymers of propylene and 1-hexene
    20.
    发明授权
    Multimodal copolymers of propylene and 1-hexene 有权
    丙烯与1-己烯的多峰共聚物

    公开(公告)号:US09567418B2

    公开(公告)日:2017-02-14

    申请号:US15032694

    申请日:2014-09-24

    Abstract: The present disclosure relates to a propylene-1-hexene copolymer having: i) a content of 1-hexene derived units ranging from 0.6 wt % to 3.0 wt %; ii) a melt flow rate (MFR) measured according to the method ISO 1133 (230° C., 5 kg) ranging from 0.5 g/10 min to 5.0 g/10 min; iii) a polydispersity (PI) ranges from 4.5 to 10 and the distribution of molecular weight is of multimodal type; iv) a melting point ranging from 160° C. to 145° C.; and v) a differential scanning calorimetry (DSC) curve (temperature/heat of fusion) that shows at least two peaks.

    Abstract translation: 本公开内容涉及丙烯-1-己烯共聚物,其具有:i)1-己烯衍生单元的含量范围为0.6重量%至3.0重量%; ii)根据ISO 1133(230℃,5kg)测量的熔体流动速率(MFR)为0.5g / 10min至5.0g / 10min; iii)多分散性(PI)为4.5〜10,分子量分布为多峰型; iv)熔点范围为160℃至145℃; 和v)显示至少两个峰的差示扫描量热法(DSC)曲线(温度/融合热)。

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