The present invention describes a catalyst support, which is used as an inorganic carrier for a Ziegler-Nata catalyst (ZN), using a modified spray cooling method. Such a catalyst support is prepared from alcoholic solutions of (a) an inorganic compound, in which the inorganic compound is a magnesium compound and (b) an inorganic compound and one or more additives. The solutions are prepared at a temperature below 100 C., carried through a nozzle placed inside a reactor, and sprayed into droplets forming a solid precipitate, which is generally spherical, when in contact with an inert hydrocarbon solvent at low temperature. The obtained catalyst support is reacted with a titanium compound, preferably titanium tetrachloride, in order to produce an active catalyst for olefin polymerization.

The present invention describes a catalyst support, which is used as an inorganic carrier for a Ziegler-Nata catalyst (ZN), using a modified spray cooling method. Such a catalyst support is prepared from alcoholic solutions of (a) an inorganic compound, in which the inorganic compound is a magnesium compound and (b) an inorganic compound and one or more additives. The solutions are prepared at a temperature below 100 C., carried through a nozzle placed inside a reactor, and sprayed into droplets forming a solid precipitate, which is generally spherical, when in contact with an inert hydrocarbon solvent at low temperature. The obtained catalyst support is reacted with a titanium compound, preferably titanium tetrachloride, in order to produce an active catalyst for olefin polymerization.

A solid catalyst component for use in olefinic polymerization, includes titanium, magnesium, a halogen, and an internal electron donor compound; wherein: the internal electron donor compound is at least one compound represented by Formula (I)).

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A solid catalyst component for use in olefinic polymerization, includes titanium, magnesium, a halogen, and an internal electron donor compound; wherein: the internal electron donor compound is at least one compound represented by Formula (I)).

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The present invention is directed to a polypropylene composition (C) comprising a heterophasic propylene copolymer and an inorganic filler, the use of said polypropylene composition (C) for the production of a foamed article and a foamed article obtained from said polypropylene composition (C).

The present invention is directed to a polypropylene composition (C) comprising a heterophasic propylene copolymer and an inorganic filler, the use of said polypropylene composition (C) for the production of a foamed article and a foamed article obtained from said polypropylene composition (C).

A polyolefin composition made from or containing: T1) 50-90 wt % of a recycled polyolefin mixture and T2) 10-50 wt % of a polyolefin component, containing A) 5-35% by weight of a propylene homopolymer or a propylene ethylene copolymer; B) 20-50% by weight of an ethylene homopolymer; and C) 30-60% by weight of a terpolymer of ethylene, propylene, and 1-butene made from or containing 45 to 65 percent by weight of ethylene units and from 15 to 38 percent by weight of 1-butene units.

A polyolefin composition made from or containing: T1) 50-90 wt % of a recycled polyolefin mixture and T2) 10-50 wt % of a polyolefin component, containing A) 5-35% by weight of a propylene homopolymer or a propylene ethylene copolymer; B) 20-50% by weight of an ethylene homopolymer; and C) 30-60% by weight of a terpolymer of ethylene, propylene, and 1-butene made from or containing 45 to 65 percent by weight of ethylene units and from 15 to 38 percent by weight of 1-butene units.

Solid adducts comprising MgCl.sub.2, ethanol and water characterized in that the amount of ethanol ranges from 50% to less than 57% by weight, the amount of water is ranges from 0.5 to 5% by weight, the ethanol/water weight ratio is lower than 60 and the porosity determined with Hg method due to pores with radius up to 1 m and expressed in cm.sup.3/g, is lower than 0.2.

Solid adducts comprising MgCl.sub.2, ethanol and water characterized in that the amount of ethanol ranges from 50% to less than 57% by weight, the amount of water is ranges from 0.5 to 5% by weight, the ethanol/water weight ratio is lower than 60 and the porosity determined with Hg method due to pores with radius up to 1 m and expressed in cm.sup.3/g, is lower than 0.2.