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    • 6. 发明申请
    • POLYETHYLENE COMPOSITION SUITABLE FOR PIPE APPLICATIONS
    • 适用于管道应用的聚乙烯组合物
    • WO2016173688A1
    • 2016-11-03
    • PCT/EP2016/000444
    • 2016-03-11
    • ABU DHABI POLYMERS CO. LTD. (BOROUGE) L.L.C.BOREALIS AG
    • TYNYS, AnttiTAY, Amos
    • C08L23/04C08L23/06C08L23/08C08K3/04F16L9/12C08F2/00
    • C08L23/06C08F110/02C08F210/16C08K3/04C08L23/04C08L23/08C08L23/0815C08L2203/18C08L2205/02C08L2205/025F16L9/12C08F2/001C08F210/08C08F2500/12C08F2500/08C08F2500/17C08F2500/19
    • 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 MFR 2 (2.16 kg, 190°C) of equal to or more than 130 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); the polyethylene composition has a melt flow rate MFR 5 (5 kg, 190°C) of more than 0.60 g/10 min to less than 1.00 g/10 min, determined according to ISO 1133, and a shear thinning index SHI 2.7/210 of equal to or more than 10 to equal to or less than 27. 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.
    • 本发明涉及一种聚乙烯组合物,其包含 - 基础树脂,其包含(A)熔体流动速率MFR 2(2.16kg,190℃)等于或大于130g / 10min的第一乙烯均聚物或共聚物组分 至少等于或小于300g / 10min,和(B)第二乙烯均聚物或共聚物组分,任选的炭黑,任选的另外的聚合物组分不同于第一个乙烯均聚物 - 或共聚物组分(A)和(B),和 - 任选的添加剂; 其中所述第一乙烯均聚物或共聚物组分(A)具有作为所述第二乙烯均聚物或共聚物组分(B)的较低重均分子量; 聚乙烯组合物根据ISO 1133测定的熔体流动速率MFR5(5kg,190℃)大于0.60g / 10min至小于1.00g / 10min,剪切稀化指数SHI2.7 / 210 等于或大于10至等于或小于27.本发明还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配件的制品以及使用 这种用于生产这种制品的聚乙烯组合物。
    • 8. 发明申请
    • PROCESS FOR PRODUCING HETEROPHASIC COPOLYMERS OF PROPYLENE
    • 生产丙烯的异构共聚物的方法
    • WO2016131907A1
    • 2016-08-25
    • PCT/EP2016/053430
    • 2016-02-18
    • BOREALIS AG
    • LESKINEN, PauliLILJA, JohannaWANG, JingboGAHLEITNER, Markus
    • C08L23/14C08F210/06C08F4/651
    • C08L23/142C08F210/06C08L2203/18C08F4/651C08F2/001C08L23/16C08F4/6492C08F210/16C08F2500/12C08F2500/17
    • The present invention provides a process for producing a heterophasic copolymer composition. The polymerisation is conducted in the presence of an olefin polymerisation catalyst comprising a solid catalyst component further comprising titanium, magnesium, halogen and an internal donor, and a cocatalyst, the process comprising the steps of: (1) introducing streams of the solid catalyst component, the cocatalyst, propylene monomer and hydrogen into a first polymerisation reactor; (2) producing a first polymer of propylene in the first polymerisation reactor, the first polymer of propylene having a first melt flow rate MFR 2 of from 0.1 to 2.0 g/10 min; (3) withdrawing a stream comprising the first polymer of propylene from the first polymerisation reactor and passing it to a second polymerisation reactor; (4) introducing a stream of propylene monomer into the second polymerisation reactor; (5) producing a first polymer mixture comprising the first polymer of propylene and a second polymer of propylene in the second polymerisation reactor, the first polymer mixture having a second melt flow rate MFR 2 of from 0.05 to 1.0 g/10 min and which second melt flow rate is less than the first melt flow rate; (6) withdrawing a stream comprising the first polymer mixture from the second polymerisation reactor and passing it to a third polymerisation reactor; (7) introducing streams of propylene monomer and the comonomer into the third polymerisation reactor; (8) producing the heterophasic copolymer composition comprising the first polymer mixture and a third copolymer of propylene in the third polymerisation reactor, the heterophasic copolymer composition having a third melt flow rate MFR 2 of from 0.05 to 1.0 g/10 min, said heterophasic copolymer having a content of comonomer units of from 5 to 25 % by mole; wherein the amount of xylene soluble fraction in the heterophasic copolymer determined according to ISO 16152 is from 14 to 35 % by weight and intrinsic viscosity measured from the amorphous polymer (AM) of the heterophasic copolymer is from 1.5 to 4.4 dl/g; and (9) recovering the heterophasic copolymer composition from the third polymerisation reactor; characterised in that the internal donor is a compound having the structure according to formula (I); wherein R 1 and R 2 are the same or different being a linear or branched C 1 -C 12 -alkyl group and R is hydrogen or a linear, branched or cyclic C 1 to C 12 -alkyl.
    • 本发明提供了一种制备多相共聚物组合物的方法。 聚合反应在含有进一步包含钛,镁,卤素和内部供体的固体催化剂组分的烯烃聚合催化剂和助催化剂的存在下进行,该方法包括以下步骤:(1)将固体催化剂组分 ,助催化剂,丙烯单体和氢气进入第一聚合反应器; (2)在第一聚合反应器中制备丙烯的第一聚合物,所述丙烯的第一聚合物的第一熔体流动速率MFR 2为0.1至2.0g / 10min; (3)从第一聚合反应器中取出包含丙烯的第一聚合物的物流并将其送至第二聚合反应器; (4)将丙烯单体流引入第二聚合反应器中; (5)在第二聚合反应器中产生包含丙烯的第一聚合物和丙烯的第二聚合物的第一聚合物混合物,第一聚合物混合物的第二熔体流动速率MFR 2为0.05-1.0g / 10min,第二熔体 流量小于第一熔体流动速率; (6)从第二聚合反应器中取出包含第一聚合物混合物的料流并将其送至第三聚合反应器; (7)将丙烯单体和共聚单体流引入第三聚合反应器中; (8)在第三聚合反应器中产生包含第一聚合物混合物和丙烯的第三共聚物的多相共聚物组合物,所述多相共聚物组合物具有0.05至1.0g / 10min的第三熔体流动速率MFR 2,所述多相共聚物具有 共聚单体的含量为5〜25摩尔% 其中根据ISO 16152测定的多相共聚物中二甲苯可溶级分的量为14至35重量%,并且由多相共聚物的无定形聚合物(AM)测量的特性粘度为1.5至4.4dl / g; 和(9)从第三聚合反应器回收多相共聚物组合物; 其特征在于所述内给体是具有式(I)结构的化合物; 其中R1和R2相同或不同,为直链或支链C1-C12-烷基,R为氢或直链,支链或环状C1至C12烷基。