Abstract: A polyolefin composition made from or containing: A) from 85.0 wt % to 99.5 wt % of a propylene 1-hexene copolymer, based upon the weight of the polyolefin composition and B) from 0.5 wt % to 15.0 wt % of a propylene, ethylene copolymer composition, based upon the weight of the polyolefin composition, made from or containing: b1) from 12 wt % to 52 wt % of a propylene homopolymer or a propylene/ethylene copolymer, based upon the weight of the propylene, ethylene copolymer composition and b2) from 48 wt % to 88 wt % of a propylene ethylene copolymer, based upon the weight of the propylene, ethylene copolymer composition, having a content of ethylene derived units ranging from 15.0 wt % to 42.0 wt %; wherein the polyolefin composition has a melt flow rate (230° C./5 kg. ISO 1133) ranging from 0.2 g/10 min to 4.0 g/10 min; the sum A+B being 100 and the sum b1+b2 being 100.

Abstract: A propylene composition comprising: A) from 60 wt % to 75 wt %, of a propylene homopolymer having a Polydispersity Index (P.I.) value from 4.3 to 4.9, a fraction insoluble in xylene at 25° C., higher than 95%, based upon the weight of the propylene homopolymer, and MFR (Melt Flow Rate according to ISO 1133, condition L, at 230° C. and 2.16 kg load) ranging from 20 to 75 g/10 min; B) from 25 wt % to 40 wt %, of a copolymer of propylene with from 46.0 wt % to 49.0 wt %; of ethylene derived units, based upon the weight of the propylene copolymer; wherein the propylene polymer composition having an intrinsic viscosity of the fraction soluble in xylene at 25° C. between 2.2 to 2.9 dl/g; and the relation: 10.7+1.3×MFRa?17.7×P.I.?29.3×IV+4.9×Xs??(I) between about 40 to about 66; wherein the amount of A+B is equal to 100 wt %.

Abstract: A film made from or containing a polypropylene composition made from or containing: A) from 50 wt % to 90 wt %; of a propylene homopolymer; and B) from 10 wt % to 50 wt %; of a copolymer of propylene with from 30.0 wt % to 70.0 wt %, of ethylene derived units, based upon the weight of the copolymer; wherein the sum of the amount of component A) and B) being 100; the polypropylene composition having: i) an intrinsic viscosity of the fraction soluble in xylene at 25° C. between 2.2 to 4.0 dl/g; ii) a MFR L (Melt Flow Rate according to ISO 1133, condition L, at 230° C. and 2.16 kg load) from 0.5 to 50 g/10 min; and iii) a xylene soluble fraction ranging from 20 wt % to 50 wt %, based upon the weight of the polypropylene composition; and the polypropylene composition being obtained by a polymerization process wherein the catalyst system contains bismuth.

Abstract: A film made from or containing a polypropylene composition made from or containing: A) from 50 wt % to 90 wt %; of a propylene homopolymer; and B) from 10 wt % to 50 wt %; of a copolymer of propylene with from 30.0 wt % to 70.0 wt %, of ethylene derived units, based upon the weight of the copolymer; wherein the sum of the amount of component A) and B) being 100; the polypropylene composition having: i) an intrinsic viscosity of the fraction soluble in xylene at 25° C. between 2.2 to 4.0 dl/g; ii) a MFR L (Melt Flow Rate according to ISO 1133, condition L, at 230° C. and 2.16 kg load) from 0.5 to 50 g/10 min; and iii) a xylene soluble fraction ranging from 20 wt % to 50 wt %, based upon the weight of the polypropylene composition; and the polypropylene composition being obtained by a polymerization process wherein the catalyst system contains bismuth.

Abstract: The present disclosure provides a solid catalyst component obtainable by a process including: (a) a first step in which Ti(OEt)4, is reacted with a Mg based compound of formula MgCln(ORI)2-n, where n is from about 0.5 to about 1.5, RI is a C1-C10 alkyl groups, the Ti(OEt)4 and the Mg compound are used in amounts such that the Ti/Mg molar ratio is of about 0.2 to about 0.4, the reaction temperature is about 110 to about 130° C., and the reaction time is about 2 to about 5 hours; and (b) a subsequent step in which the product obtained in step (a) is reacted with a Ti compound of the formula Ti(ORI)4-yCly, where y is a number between 3 and 4.

Abstract: A polyolefin composition made from or containing: A) from 85.0 wt % to 99.5 wt % of a propylene 1-hexene copolymer, based upon the weight of the polyolefin composition and B) from 0.5 wt % to 15.0 wt % of a propylene, ethylene copolymer composition, based upon the weight of the polyolefin composition, made from or containing: b1) from 12 wt % to 52 wt % of a propylene homopolymer or a propylene/ethylene copolymer, based upon the weight of the propylene, ethylene copolymer composition and b2) from 48 wt % to 88 wt % of a propylene ethylene copolymer, based upon the weight of the propylene, ethylene copolymer composition, having a content of ethylene derived units ranging from 15.0 wt % to 42.0 wt %; wherein the polyolefin composition has a melt flow rate (230° C./5 kg. ISO 1133) ranging from 0.2 g/10 min to 4.0 g/10 min; the sum A+B being 100 and the sum b1+b2 being 100.

Abstract: The present disclosure provides a propylene composition made from or containing A) from 60 wt % to 75 wt %, of a propylene homopolymer having a Polydispersity Index (P.I.) value from 4.3 to 4.9, a fraction insoluble in xylene at 25° C., higher than 95%, based upon the weight of the propylene homopolymer, and MFR (Melt Flow Rate according to ISO 1133, condition L, at 230° C. and 2.16 kg load) ranging from 20 to 75 g/10 min; B) from 25 wt % to 40 wt %, of a copolymer of propylene with from 46.0 wt % to 49.0 wt %; of ethylene derived units, based upon the weight of the propylene copolymer; wherein the propylene polymer composition having an intrinsic viscosity of the fraction soluble in xylene at 25° C. between 2.2 to 2.9 dl/g; and the relation: 10.7+1.3×MFRa?17.7×P.I.?29.3×IV+4.9×Xs??(I) between about 40 to about 66; wherein MFRa is the melt flow rate of the component A); P.I. is the polydispersity index of component A); IV is the intrinsic viscosity of the fraction soluble in xylene at 25° C.

Abstract: A fluid is fed into a polymer bed of a fluidized bed gas phase polymerization reactor by introducing the fluid into the polymer bed through a distributor protruding into the fluidized bed zone of the reactor and terminating with a discharge end positioned so that the following equation is fulfilled: d/D>0.002 wherein d is the distance of the distributor's discharge end from the wall of the reactor, and D is the diameter of the reactor in the fluidized bed zone.

Abstract: A solid catalyst component for the polymerization of olefins made from or containing Mg, Ti and an electron donor of formula (I) wherein R1 and R7 groups, equal to or different from each other, are selected from C1-C15 hydrocarbon groups, R2 group is selected from C1-C10 hydrocarbon groups, and R3 to R6 groups, independently, are selected from hydrogen or C1-C15 hydrocarbon groups which can be fused together to form one or more cycles. The catalyst system based on the solid catalyst component is endowed with high activity and stereospecificity.

Abstract: A butene-1 polymer composition having MFR values of from 400 to 2000 g/10 min, measured according to ISO 1133 at 190° C. with a load of 2.16 kg, made from or containing A) a butene-1 homopolymer or a copolymer of butene-1 with a comonomer selected from the group consisting of ethylene and higher alpha-olefins, having a copolymerized comonomer content of up to 5% by mole; B) a copolymer of butene-1 with a comonomer selected from the group consisting of ethylene and higher alpha-olefins, having a copolymerized comonomer content of from 6% to 20% by mole; wherein the composition having a total copolymerized comonomer content from 4% to 15% by mole, referred to the sum of A) and B), and a content of fraction soluble in xylene at 0° C. of 60% by weight or less, determined on the total weight of A) and B).

Abstract: A nucleated propylene polymer composition made from or containing: A) a propylene homopolymer; B) a copolymer of propylene with ethylene derived units; the nucleated composition having a fraction soluble in xylene at 25° C. between 9.0 and 21.0 wt %, an intrinsic viscosity of the fraction soluble in xylene at 25° C. between 1.0 and 1.9 dl/g, a total melt flow rate between 1.5 and 5 g/10 min and the value of the relation (I): 22.5+0.2*MFR?1.2*Xs+0.2*IV??(I) is higher than 5.9; wherein MFR is the melt flow rate of the nucleated composition; IV is the intrinsic viscosity of the fraction soluble in xylene at 25° C.; and Xs is the fraction soluble in xylene at 25° C., the amount of A+B is equal to 100 wt %, and the nucleating agent is selected from the group consisting of aromatic or aliphatic carboxylic acids, aromatic metal phosphates, sorbitol derivatives and talc.

Abstract: A Prepolymerized catalyst component for the polymerization of olefins comprising a solid catalyst component which comprises Mg, Ti, and chlorine atoms and an electron donor (ID) said prepolymerized catalyst component being characterized by the fact that: the electron donor (ID) is constituted by at least 80% mol of 1,3 diethers with respect to the total molar amount of electron donor compounds; the prepolymerized catalyst has a porosity due to pores with diameters up to 1 ?m of less than 0.2 cm3/g; it contains an amount of ethylene prepolymer of less than 45% with respect to the total weight of prepolymerized catalyst.

Abstract: A catalyst component made from or containing Ti, Mg, chlorine, an amount of a first internal donor selected from esters of aliphatic monocarboxylic acids (EAA), and an amount of a second internal donor selected from cyclic ethers (CE), wherein the EAA/CE molar ratio ranges from 0.02 to less than 20.

Abstract: A plate for use in an extrusion-based additive manufacturing system made from or containing a top layer made from or containing a sheet or film made from or containing polyolefin composition A) made from or containing (i) 5-35% by weight of a propylene homopolymer or a propylene ethylene copolymer; (ii) 20-50% by weight of a copolymer of ethylene and a C3-C8 alpha-olefin; and (iii) 30-60% by weight of a copolymer of ethylene and propylene wherein the amounts of (i), (ii) and (iii) being referred to the total weight of (i)+(ii)+(iii) and the sum of the amount of (i), (ii) and (iii) being 100.

Abstract: A catalyst component for the polymerization of olefins, comprising Ti, Mg, halogen, an electron donor (ID) selected from the group consisting of aliphatic cyclic ethers and alkyl esters of aliphatic monocarboxylic acids and a compound of a metal selected from the group consisting of Zn and Cu, wherein the catalyst component is devoid of Zn—C or Cu—C bonds and the Mg/Ti molar ratio ranges from 4.0 to 50.0.

Abstract: A polyolefin composition made from or containing: (A) from 97.0 to 45.0 wt % of a propylene-1-hexene random copolymer, (B) from 2.0 to 50.0 wt % of fibers, and (Q) from 0.3 wt % to 5.0 wt % of a compatibilizer, the sum (A)+(B)+(Q) being 100, wherein (i) the copolymer has a content of 1-hexene derived units ranging from 0.6 wt % to 3.0 wt % with respect to the copolymer, (ii) the copolymer has the melt flow rate (MFR) measured according to the method ISO 1133 (230° C., 2.16 kg) ranging from 0.2 up to 40 g/10 min, (iii) the fibers are selected from the group consisting of glass fibers, carbon fibers, metal fibers, mineral fibers, ceramic fibers, and polymer fibers.

Abstract: The disclosure provides a film made from or containing a polyolefin composition made from or containing A) 5-35% by weight, based upon the total weight of the polyolefin composition, of a propylene homopolymer or a propylene ethylene copolymer; B) 25-50% by weight, based upon the total weight of the polyolefin composition, of a copolymer of ethylene and a C3-C8 alpha-olefin containing from 0.1% to 20% by weight of alpha-olefin units; and C) 30-60% by weight, based upon the total weight of the polyolefin composition, of a copolymer of ethylene and propylene containing from 25% to 75% by weight of ethylene units.

Abstract: A gas-phase process for the homopolymerization or copolymerization of olefins carried out in the presence of a catalyst system formed by a contacting, in a liquid hydrocarbon and in the presence of hydrogen, (a) a solid catalyst component comprising Ti, Mg, and Cl, and optionally an internal electron donor compound, (b) an aluminum alkyl compound and optionally (c) an external donor compound.

Abstract: Solid adducts comprising MgCl2 and an alcohol ROH in which R is a C1-C20 hydrocarbon group, in which the amount of alcohol ranges from higher than 42% to 60% by weight and the porosity determined with Hg method due to pores up to 1 ?m and expressed in cm3/g, is such that the value of its ratio with the amount of alcohol in percentage falls above the straight line defined by the equation y=?0.0158x+1.03 in which y is the porosity of the adduct and x is the alcohol percentage by weight.

Abstract: A butene-1 polymer composition having MFR values of from 400 to 2000 g/10 min, measured according to ISO 1133 at 190° C. with a load of 2.16 kg, made from or containing A) a butene-1 homopolymer or a copolymer of butene-1 with a comonomer selected from the group consisting of ethylene and higher alpha-olefins, having a copolymerized comonomer content of up to 5% by mole; B) a copolymer of butene-1 with a comonomer selected from the group consisting of ethylene and higher alpha-olefins, having a copolymerized comonomer content of from 6% to 25% by mole; wherein the composition having a total copolymerized comonomer content from 5% to 18% by mole, referred to the sum of A) and B), and a content of fraction soluble in xylene at 0° C. of 65% by weight or more, determined on the total weight of A) and B).