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    • 77. 发明申请
    • COMPOSITION COMPRISING HETEROPHASIC PROPYLENE COPOLYMER
    • WO2020169402A1
    • 2020-08-27
    • PCT/EP2020/053413
    • 2020-02-11
    • SABIC GLOBAL TECHNOLOGIES B.V.
    • HERKLOTS, MarcBANDE, DanielDE LA CROIX, GingerVAN BEEK, Dimphna, Johanna, Maria
    • C08L23/12
    • The invention relates to a composition comprising (A) a heterophasic propylene copolymer and (B) an ethylene copolymer of ethylene and an alpha-olefin comonomer units having 4 to 10 carbon atoms, wherein (A) the heterophasic propylene copolymer consists of (a) a propylene-based matrix, wherein the propylene-based matrix consists of a propylene homopolymer and/or a propylene copolymer consisting of at least 70 wt% of propylene monomer units and at most 30 wt% of ethylene and/or α-olefin monomer units, based on the total weight of the propylene-based matrix and wherein the propylene-based matrix is present in an amount of 80 to 95 wt% based on the total heterophasic propylene copolymer and (b) a dispersed ethylene-α-olefin copolymer, wherein the dispersed ethylene-α-olefin copolymer is present in an amount of 5 to 20 wt%, preferably 8 to 15 wt%, based on the total heterophasic propylene copolymer and wherein the sum of the total amount of propylene-based matrix and total amount of the dispersed ethylene-α-olefin copolymer in the heterophasic propylene copolymer is 100 wt%, wherein the amount of ethylene in the ethylene-α-olefin copolymer of the heterophasic propylene copolymer is 10 to 45 wt%, preferably 30 to 38 wt%, and wherein (B) the ethylene copolymer has a density of to 0.850 to 0.910 g/cm3 and a melt flow index of 10.0 to 50.0 dg/min, preferably 30.0 dg/min, measured in accordance with ASTM D1238 (2.16 kg/190 ºC), wherein the composition comprises less than 5 wt% of talc with respect to the total composition.