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    • 2. 发明公开
    • HINGED POLYETHYLENE COMPONENT
    • EP4386047A1
    • 2024-06-19
    • EP22212708.6
    • 2022-12-12
    • SABIC Global Technologies B.V.
    • Shi, HuajieGuan, Qingling
    • C08L23/06C08L23/08
    • C08L23/06C08L23/0815
    • Hinged component comprising a polyethylene composition, the polyethylene composition comprising
      -a high density polyethylene (HDPE) having a density in the range of 950 to 960 kg/m3 measured according to ISO 1183, a melt flow index in the range of 5 to 40 g/10min measured according to ISO 1133 at a load 2.16 kg and a temperature of 190 °C, a weight average molecular weight Mw measured by size exclusion chromatography of in the range of 50,000 to 110,000 g/mol, a molecular weight distribution Mw/Mn in the range of 4.0 to 10.0, and
      -a linear low density polyethylene (LLDPE) having a density in the range of 920 to 940 kg/m3 measured according to ISO 1183, a melt flow index in the range of 1 to 20 g/10min measured according to ISO 1133 at a load 2.16 kg and a temperature of 190 °C, a weight average molecular weight Mw measured by size exclusion chromatography in the range of 40,000 to 120,000 g/mol and a molecular weight distribution Mw/Mn in the range of 3 to 7;
      wherein the polyethylene composition has an overall density in the range of 935 to 950 kg/m3 measured according to ISO 1183 and an overall melt flow index in the range of 5 to 30 g/10min measured according to ISO 1133 at a load 2.16 kg and a temperature of 190 °C,
      wherein the amount of the HDPE is in the range of 30-70% by weight of the total amount of the HDPE and LLDPE and wherein the amount of the LLDPE is in the range of 30-70% by weight of the total amount HDPE and LLDPE and wherein the total amount of the HDPE and LLDPE is 100 % by weight.