Abstract:
The present invention relates to a solid Ziegler-Natta catalyst component comprising transition metal compound of Group 4 to 6, and a polymeric nitrogen containing electron donor, preferably selected from linear or branched polyalkyleneimines or isomers or mixtures therefrom. The invention relates further to the use of said polymeric internal electron donor in a solid Ziegler-Natta catalyst component, a catalyst comprising said solid Ziegler-Natta catalyst component and a cocatalyst, and use of said catalyst in producing C 2 to C 6 olefin (co)polymers.
Abstract:
The invention relates to a particulate Group 2 metal/transition metal olefin polymerisation catalyst component comprising a special 1,3-diether as internal donor, to a process for preparing same and to the use of such a catalyst component for preparing a catalyst used in the polymerisation of olefins.
Abstract:
Process for producing of a capacitor film comprising the steps of (a) polymerizing propylene in the presence of a catalyst comprising a solid catalyst system obatining a polypropylene, (b)subjecting said polypropylene to a film forming process obtaining a capacitor film, wherein during the polymerization step (a) said catalyst comprising the solid catalyst system fragments into nanosized catalyst fragments being distributed in said polypropylene, said solid catalyst system comprises a transition metal,a metal which is selected from one of the groups 1 to 3 of the periodic table (IUPAC),and an internal electron donor.
Abstract:
The invention refers to a process for preparing a Group 2 metal/transition metal olefin polymerization catalyst component in particulate form having improved polymerization properties due to the use of H 2 during catalyst component preparation and the use of such catalyst components in a process for polymerizing olefins.
Abstract:
The present invention relates to A Ziegler-Natta catalyst component in the form of solid particles having a median particle size (D50 vol ) of 5to 200 µm and comprising i) a compound of Group 1 to 3, preferably of Group 2 metal, IUPAC, Nomenclature of Inorganic Chemistry, 1989 ii) a compound of a transition metal of Group 4 to 10, or of a lanthanide or actinide, preferably a transition metal of Group 4 to 6, IUPAC, Nomenclature of Inorganic Chemistry, 1989 and iii) an internal electron donor, wherein the solid particles have a numerical SPAN of 0.80or below and a ratio of numerical mode to volumetric mode (Mode num/ Mode vol ) of 0.60 or more and wherein Mode num vol. The invention also relates to a process for producing said catalyst component and use thereof for producing C 2 to C 10 α-olefin polymers, especially propylene or ethylene polymers or copolymers thereof with α-olefins of 2 to 12 C-atoms.
Abstract:
Improved process for the preparation of phthalate-free particulate olefin polymerisation Ziegler-Natta type catalystcomponent via the emulsion-solidification method, as well as catalyst component obtainable by the process and the use of said catalystcomponent in olefin polymerisation process.
Abstract:
Process for the preparation of a particulate Group 2 metal/transition metal polymerisation catalyst component for ethylene polymerisation comprising a special bi-(oxygen containing ring) compound as internal donor, and to the use of such a catalyst component for preparing a catalyst used in the polymerisation of ethylene.
Abstract:
The present invention relates to a solid, particulate catalyst component having an mean particle size range of 5 to 200 μm and comprising a compound of a Group 2 metal, a compound of a transition metal of Group 4 to 6, and at least two internal electron donors being different to each other and being non-phthalic organic compounds selected from (di)esters of non-phthalic carboxylic (di)acids, 1,3-diethers and di-esters of 1,3-diol compounds and derivatives thereof, and wherein the solid particulate catalyst component is free of any external support material. The invention relates also to the preparation of the catalyst component and a polymerisation process for producing propylene polymers.