Soft heterophasic polyolefin composition

    公开(公告)号:US09598566B2

    公开(公告)日:2017-03-21

    申请号:US15026741

    申请日:2014-12-18

    申请人: Borealis AG

    IPC分类号: C08L23/14 F16L58/18 F16L13/02

    摘要: Heterophasic polypropylene composition having an MFR2 (2.16 kg, 230° C.) of 3.0 to 7.0 g/10 min, determined according to ISO 1 133, and a Vicat A50 softening temperature of more than 110° C. measured according to DIN EN ISO 306 at 10 N on an injection molded test specimen with the dimensions of 80×10×4 mm3 and a heat rate of 50° C./h including a propylene random copolymer matrix phase (A), and an ethylene-propylene copolymer rubber phase (B) dispersed within the matrix phase, wherein the heterophasic polypropylene composition has a fraction soluble in p-xylene at 23° C. (XCS fraction), and a fraction insoluble in p-xylene at 23° C. (XCU fraction), said heterophasic polypropylene composition having a tensile modulus of 450 to 850 MPa when measured according to ISO 527-2 at 23° C. temperature with an elongation rate of 1 mm/min on injection molded test specimens type 1A prepared according to ISO 1873-2; and a normalized maleic anhydride index IMA equal to or less than 0.036 μm−1.

    POLYMER COMPOSITION
    4.
    发明申请

    公开(公告)号:US20220098401A1

    公开(公告)日:2022-03-31

    申请号:US17424943

    申请日:2020-01-27

    申请人: BOREALIS AG

    摘要: The present invention relates to a polymer composition comprising (A) from 60 to 90 wt % of a non-elastomeric polyethylene; (B) from 9.0 to 38 wt % of an elastomer; wherein onto component (A) or components (A) and (B) an acid grafting agent (C) has been grafted in an amount of from 0.01 to 3.0 wt %, all based on the total weight of the polymer composition, and wherein the polymer composition has two distinct peaks and a valley between said peaks in the GPC curve and a Z value, determined from the areas below the two peaks of the GPC curve, of at least −0.3, wherein the Z-value is determined according to formula (I) Z=s/Abs(B−A) (I) wherein Abs(B−A) is the absolute value of (B−A); A=the area, between the tangent parallel to the MW axis going through log M (Min) and the LS15 signal, from log M of 5.1 to log M value where the LS signal is minimum log M (Min), in the log M range between 5.1 and 6; B=the area, between the tangent parallel to the MW axis going through log M (Min) and the LS 15 signal, from log M(Min) to the point where the LS signal is crossed again; and s is the slope between the two peaks of the GPC curve, defined at log M of 5.1 and 6, wherein the GPC curve is defined as the concentration normalized LS 15 signal along the molecular weight of conventional GPC, obtained from the GPC-VISC-LS analysis, a multi-layer structure such as a coated metal pipe, comprising one layer comprising said polymer composition and the use of said polymer composition as adhesive polymer composition and for the production of a multi-layer structure.

    HIGH STIFFNESS POLYPROPYLENE COMPOSITIONS
    5.
    发明申请
    HIGH STIFFNESS POLYPROPYLENE COMPOSITIONS 审中-公开
    高硬度聚丙烯组合物

    公开(公告)号:US20150299442A1

    公开(公告)日:2015-10-22

    申请号:US14437529

    申请日:2014-02-12

    申请人: Borealis AG

    IPC分类号: C08L23/12 C08L15/00

    摘要: Heterophasic polypropylene composition comprising a propylene homo- or random copolymer matrix phase (A), and an ethylene-propylene copolymer rubber phase (B) dispersed within the matrix phase, the heterophasic polypropylene composition including a fraction soluble in pxylene at 25° C. (XCS fraction) which is present in the resin in an amount of 4 to 14 wt.-%, and a fraction insoluble in p-xylene at 25° C. (XCU fraction) which is present in the resin in an amount of 86 to 96 wt.-%, wherein the heterophasic polypropylene composition has an MFR2, determined according to ISO 1133 at 230° C. and under a load of 2.16 kg, of 4.0 to 8.0 g/10 min; and wherein the heterophasic polypropylene composition has a flexural modulus higher than 1500 MPa measured on an injection moulded specimen with the dimension 80×10×4 mm3 according to ISO 178; and wherein the heterophasic polypropylene composition has a content of monomer units derived from ethylene of 2.0 to 7.0 wt.-%.

    摘要翻译: 包含分散在基质相中的丙烯均相或无规共聚物基质相(A)和乙烯 - 丙烯共聚物橡胶相(B)的多相聚丙烯组合物,所述多相聚丙烯组合物包含在25℃下可溶于二亚甲基的馏分( XCS馏分),其存在于树脂中的量为4至14重量%,和在25℃下不溶于对二甲苯的馏分(XCU馏分),其存在于树脂中的量为86至 96重量%,其中所述多相聚丙烯组合物具有根据ISO 1133在230℃和2.16kg的负荷下测定的MFR 2为4.0至8.0g / 10min的MFR 2; 并且其中所述多相聚丙烯组合物在根据ISO 178的尺寸为80×10×4mm 3的注塑试样上具有高于1500MPa的挠曲模量; 并且其中所述多相聚丙烯组合物的衍生自乙烯的单体单元的含量为2.0-7.0重量%。

    Adhesive polymer composition
    6.
    发明授权

    公开(公告)号:US11001736B2

    公开(公告)日:2021-05-11

    申请号:US16494885

    申请日:2018-05-24

    申请人: Borealis AG

    摘要: An adhesive polymer composition comprising a non-elastomeric copolymer of ethylene and one or more comonomers having 3 to 10 carbon atoms, and an elastomer is disclosed herein. The non-elastomeric copolymer is present in an amount of 60 to 95% by weight, based on the adhesive polymer composition, has a weight average molecular weight Mw of from 50 000 to 80 000 g/mol, molecular weight distribution Mw/Mn of 2.0 to 5.5, density of from 0.925 to 0.945 g/cm3, and at most 0.1 vinyl groups/1000 carbon atoms. The non-elastomeric copolymer or the non-elastomeric copolymer and the elastomer have been grafted with an acid grafting agent.

    IMPROVED ADHESIVE POLYMER COMPOSITION
    9.
    发明申请

    公开(公告)号:US20200040235A1

    公开(公告)日:2020-02-06

    申请号:US16494885

    申请日:2018-05-24

    申请人: Borealis AG

    摘要: An adhesive polymer composition comprising a non-elastomeric copolymer of ethylene and one or more comonomers having 3 to 10 carbon atoms, and an elastomer is disclosed herein. The non-elastomeric copolymer is present in an amount of 60 to 95% by weight, based on the adhesive polymer composition, has a weight average molecular weight Mw of from 50 000 to 80 000 g/mol, molecular weight distribution Mw/Mn of 2.0 to 5.5, density of from 0.925 to 0.945 g/cm3, and at most 0.1 vinyl groups/1000 carbon atoms. The non-elastomeric copolymer or the non-elastomeric copolymer and the elastomer have been grafted with an acid rafting agent.