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    • 2. 发明申请
    • POLYETHYLENE COMPOSITION SUITABLE FOR INJECTION MOULDING APPLICATIONS
    • 聚乙烯组合物适用于注塑成型应用
    • US20160229993A1
    • 2016-08-11
    • US15021136
    • 2013-10-30
    • ABU DHABI POLYMERS CO., LTD (BOROUGE) L.L.C.BOREALIS AG
    • Cindy Xin WangTanja PielAntti Tynys
    • C08L23/06
    • C08L23/06C08F210/16C08K3/04C08L23/0815C08L2203/18C08L2205/025C08L2314/02F16L9/12C08F2/001C08F4/6492C08F210/14C08F2500/12C08F2500/07C08F2500/05
    • The present invention relates to a polyethylene composition comprising-a base resin comprising (A) a first ethylene homo- or copolymer component having a melt flow rate MFR2 (2.16 kg, 190° C.) of equal to or more than 150 g/10 min to equal to or less than 300 g/10 min, determined according to ISO 1133, and (B) a second ethylene homo- or copolymer component, -optional carbon black, -optional further polymer component(s) different to the first ethylene homo- or copolymer components (A) and (B), and -optional additive(s); wherein the first ethylene homo- or copolymer component (A) has a lower weight average molecular weight as the second ethylene homo- or copolymer component (B), and the weight ratio of the first ethylene homo- or copolymer component (A) to the second ethylene homo- or copolymer component (B) is from 40:60 to 47:53; the polyethylene composition has a melt flow rate MFRS (5 kg, 190° C.) of equal to or more than 0.35 g/10 min to equal to or less than 0.60 g/10 min, determined according to ISO 1133. The invention further relates to a process for the production of such a polyethylene composition, an article, such as a pipe or pipe fitting comprising such a polyethylene composition and the use of such a polyethylene composition for the production of such an article.
    • 本发明涉及包含基础树脂的聚乙烯组合物,其包含(A)熔体流动速率MFR 2(2.16kg,190℃)等于或大于150g / 10的第一乙烯均聚物或共聚物组分 min至等于或小于300g / 10min,和(B)第二乙烯均聚物或共聚物组分 - 可选的炭黑, - 与第一乙烯不同的可选的另外的聚合物组分 均聚物或共聚物组分(A)和(B)和选择性添加剂; 其中第一乙烯均聚物或共聚物组分(A)具有作为第二乙烯均聚物或共聚物组分(B)的较低重均分子量,并且第一乙烯均聚物或共聚物组分(A)与 第二乙烯均聚物或共聚物组分(B)为40:60至47:53; 根据ISO 1133测定,聚乙烯组合物的熔体流动速率MFRS(5kg,190℃)等于或大于0.35g / 10min至等于或小于0.60g / 10min。本发明进一步 涉及生产这种聚乙烯组合物的方法,诸如包含这种聚乙烯组合物的管或管件的制品以及这种用于生产这种制品的聚乙烯组合物的用途。
    • 6. 发明申请
    • POLYETHYLENE COMPOSITION SUITABLE FOR PIPE APPLICATIONS
    • US20180282504A1
    • 2018-10-04
    • US15526951
    • 2016-03-20
    • Abu Dhabi Polymers Co. Ltd. (Borouge) L.L.C.Borealis AG
    • Antti TynysAmos Tay
    • C08K3/04C08J3/20F16L11/04
    • The present invention relates to a polyethylene composition comprising, a base resin (A) comprising a copolymer of ethylene and at least one comonomer selected from alpha-olefins having from three to twelve carbon atoms, wherein the ethylene copolymer comprises a low molecular weight component (A-1) and a high molecular weight component (A-2) with the low molecular weight component (A-1) having a lower weight average molecular weight than the high molecular weight component (A-2), (B) carbon black in an amount of 1.0 to 10 wt % based on the total amount of the polyethylene composition, and (C) optional further additives other than carbon black; wherein the low molecular weight component (A-1) has a melt flow rate MFR2 (190° C., 2.16 kg) of equal to or more than 150 g/10 min to equal to or less than 400 g/10 min, determined according to ISO 1133, the base resin (A) has a density of equal to or more than 943 kg/m3 to equal to or less than 957 kg/m3, determined according to ISO 1183, and the composition has a melt flow rate MFR5 (190° C., 5 kg) of equal to or more than 0.14 g/10 min to equal to or less than 0.30 g/10 min, determined according to ISO 1133, a viscosity at a constant shear stress of 747 Pa, eta747, of equal to or more than 800 kPa*s to equal to or less than 1300 kPa*s, and complies with the in-equation (I) eta747 >−1800×MFR5+1200 (I), a process for producing said polyethylene composition and an article comprising said polyethylene composition.