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    • 9. 发明申请
    • Polyethylene Copolymers
    • 聚乙烯共聚物
    • US20110294975A1
    • 2011-12-01
    • US13143962
    • 2010-01-13
    • Fabiana FantinelShahram MihanGerd MannebachVolker Dolle
    • Fabiana FantinelShahram MihanGerd MannebachVolker Dolle
    • C08F10/14
    • C08F210/16C08F4/65912C08F4/65916C08F4/65925C08F4/61904C08F210/14C08F2500/17C08F2500/05C08F2500/12C08F4/7042
    • A multimodal ethylene copolymer having the following properties: i) density comprised in the range from 0.880 to 0.955 g/cm3; ii) total comonomer content ranging from 6% to 25% by weight; iii) content of 1-butene derived units ranging from 0 to 2% by weight; iv) Mw/Mn comprised from 4 to 20; v) intrinsic viscosity (decalin at 135° C. as determined according to EN ISO 1628-312003) comprised between 1.0 and 4.0 dL/g; said multimodal ethylene copolymer comprises from 10% to 80% by weight of a first polyethylene component and being detected at the Crystaf® apparatus at a temperature higher than 75° C. and from 90% to 20% by weight of a second polyethylene component being a copolymer being detected at a Crystaf® apparatus at a temperature lower than 75° C.; wherein said multimodal ethylene copolymer being fractionated into 12 fractions by means of the Holtrup analysis, the fractions containing more than 2% by weight of the total amount of material meet the following relationship: Cf/HDPE>−0.0075HDPE+0.58; wherein Cf is the amount (% wt) of comonomer of formula CH2═CHT in the copolymer of the fraction and HDPE is the amount (% wt) of the homopolymer component present in the fraction.
    • 具有以下特性的多峰乙烯共聚物:i)密度在0.880至0.955g / cm3的范围内; ii)总共聚单体含量为6重量%至25重量%; iii)1-丁烯衍生单元的含量为0-2重量%; iv)Mw / Mn为4〜20; v)特性粘度(根据EN ISO 1628-312003测定的135℃下的十氢化萘)为1.0至4.0dL / g; 所述多峰乙烯共聚物包含10重量%至80重量%的第一聚乙烯组分,并且在高于75℃的温度下在Crystaf?仪器中检测到,并且90重量%至20重量%的第二聚乙烯组分为 在低于75℃的温度下在Crystaf?仪器上检测共聚物; 其中通过Holtrup分析将所述多峰乙烯共聚物分馏成12个级分,含有超过材料总量的2重量%以上的馏分满足以下关系:Cf / HDPE> -0.0075HDPE + 0.58; 其中Cf是馏分和HDPE的共聚物中式CH 2 = CHT的共聚单体的量(%wt)是存在于级分中的均聚物组分的量(%wt)。