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AssigneeBorealis AG
InventorsNorbert Hafner, Luigi Resconi, Markus Gahleitner, Jimgbo Wang, Pascal Castro, Pavel Sergeevich Kulyabin, Vyatcheslav Izmer, Alexander Voskoboynikov, Dmitry Kononovich, Ville Virkkunen
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A heterophasic polypropylene resin comprising a polypropylene homopolymer matrix phase (A) and an ethylene-propylene copolymer phase (B) dispersed within the matrix, wherein the xylene soluble fraction of the heterophasic polypropylene resin is in the range 20 to less than 50 wt %; the heterophasic polypropylene resin has an MFR2 of 0.01 to 50 g/10 min; the ethylene content of the xylene soluble fraction of the heterophasic polypropylene resin is in the range of at least 20 wt % to less than 50 wt %; the heterophasic polypropylene resin has a notched charpy impact strength at −20 C of at least 25 kJ/m2, preferably at least 50 kJ/m2; and wherein the MFR2 (Matrix)/MFR2(XS)≧5, preferably ≧10.
A heterophasic polypropylene resin comprising an asymmetrical metallocene-produced polypropylene homopolymer phase (A) and an asymmetrical metallocene-produced ethylene-propylene copolymer phase (B) dispersed within the phase (A), wherein the same asymmetrical metallocene catalyst is used to produce the phase (A) and the phase (B), and wherein
Dependencies are inferred from the claim text.