Abstract: A multilayer film made from or containing at least one layer 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 0.1-20% by weight of C3-C8 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 25-75% by weight of ethylene units.

Abstract: A polypropylene composition made from or containing (i) component (1) made from or containing a propylene/ethylene copolymer containing 2 to 4% by weight of an ethylene-derived unit, based upon the total weight of the propylene/ethylene copolymer; and (ii) component (2) made from or containing an ethylene/propylene copolymer containing 65 to 87% by weight of an ethylene-derived unit, based upon the total weight of the ethylene/propylene copolymer; wherein the polypropylene composition has 1) a weight ratio of component (1) to component (2) in the range of 65:35 to 77:23, 2) an intrinsic viscosity of xylene solubles (XSIV) in the range of 0.8 to 1.4 dl/g, 3) a MFR (at 230° C. under a load of 2.16 kg) in the range of 15 to 40 g/10 min., and 4) the absence of a crystal nucleating agent.

Abstract: A propylene, ethylene, 1-butene terpolymer made from or containing a) from about 1.8 wt % to about 5.9 wt % of ethylene derived units; and b) from about 2.0 wt % to about 4.5 wt % of 1 butene derived units; and having i) a ratio of C2 wt %/C4 wt % in the range from about 0.9 to about 1.3; wherein C2 wt % is the weight percent of ethylene derived units and C4 wt % is the weight percent of 1-butene derived units; ii) a Melt flow rate (determined according to ISO 1133 230° C., 2.16 kg) in the range from about 1.0 to about 30.0 g/10 min; and iii) a xylene soluble fraction at 25° C. between about 10 wt % and about 30 wt %. The weight percentages are based upon the total weight of the terpolymer.

Abstract: An apparatus and a method to withdraw samples from a polymerization plant using a defined sequence of steps combined with locking devices for valves opened by a single key.

Abstract: A multilayer film made from or containing a core layer made from or containing a polypropylene composition made from or containing: A) from 90 wt % to 50 wt %; of a propylene homopolymer; and B) from 10 wt % to 50 wt %; of a propylene ethylene copolymer having: i) xylene soluble fraction at 25° C. ranging from 14 wt % to 27 wt %; ii) intrinsic viscosity of the fraction soluble in xylene at 25° C. ranging from 1.0 to 2.4 dl/g; iii) melt flow rate ranging from 1.0 g/10 min to 4.0 g/10 min; iv) an ethylene content ranging from 5.0 wt % to 12.0 wt %; v) the ethylene derived units content on the fraction insoluble in xylene at 25° C. ranging from 2.5 wt % to 6.0 wt %; vi) the ethylene derived units content on the fraction soluble in xylene at 25° C. ranging from 15.2. wt % to 30.2 wt %, the sum of A) and B) being 100 wt %.

Abstract: A manhole for a polymerization unit having a through-hole formed with a shoulder matching a corresponding shoulder of a plug of a closure member operatively inserted in the through-hole. The through-hole can be closed with a minimum clearance, such that polymer particles do not deposit in the gap between the wall of the unit and the plug of the closure member.

Abstract: A polyolefin composition made from or containing: T1) 70-95 wt %, of a polyolefin component containing: a1) from 30 wt % to 70 wt % of a propylene based polymer; and a2) from 30 wt % to 70 wt % of an ethylene based polymer; and T2) 5-30 wt % of a polyolefin component containing: A) 5-35% by weight of a propylene homopolymer or a propylene ethylene copolymer; B) 25-50% by weight of a copolymer of ethylene and a C3-C8 alpha-olefin containing 0.1-20% by weight of C3-C8 alpha-olefin units; and C) 30-60% by weight of a copolymer of ethylene and propylene containing 25-75% by weight of ethylene units.

Abstract: A polyolefin composition made from or containing: T1) 70-95 wt %, a polyolefin component containing: a1) from 30 wt % to 70 wt % of a propylene based polymer; and a2) from 30 wt % to 70 wt % of an ethylene based polymer; the sum of a1) and a2), being referred to the total weight of a1) and a2), being 100; and T2) 5-30 wt % of a propylene ethylene copolymer containing from 2.0 wt % to 10.0 wt %; of ethylene derived units and having a melt flow rate (230° C./2.16 kg) ranging from 0.5 to 20.0 g/10 min, and having a fraction soluble in xylene at 25° C. lower than 20 wt %. the sum of the amount of T1) and T2), being referred to the total weight of T1) and T2), being 100.

Abstract: Multilayer film (BOPP) structure containing at least: A) a skin (outer) layer substantially consisting of a crystalline low seal Initiation temperature propylene copolymer; B) a tie layer substantially consisting of a butene-1 copolymer having flexural modulus (MEF) of 75 MPa or less; C) a core layer substantially consisting of one or more polypropylene homopolymers designed for BOPP.

Abstract: The present disclosure provides a polyolefin composition made from or containing: A) from about 60 to about 89% by weight based upon the total weight of the polyolefin composition of a copolymer of butene-1 with ethylene having a copolymerized ethylene content of up to about 18% by mole based upon the molar composition of the copolymer, and no melting peak detectable at the DSC at the second heating scan; and B) from about 11 to about 40% by weight based upon the total weight of the polyolefin composition of an ethylene polymer having density of from about 0.900 to about 0.970 g/cm3, measured according to ISO 1183 at 23° C.; wherein the amounts of A) and B) are referred to the total weight of A)+B) and the DSC second heating scan is carried out with a heating rate of 10° C. per minute. The composition is useful for preparing gaskets.

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 polypropylene composition made from or containing: A) from 50 wt % to 90 wt %, based upon the total weight of the polypropylene composition, of a propylene homopolymer; and B) from 10 wt % to 50 wt %, based upon the total weight of the polypropylene composition, of a copolymer of propylene and ethylene having from 30.0 wt % to 70.0 wt %, based upon the total weight of the copolymer, of ethylene derived units; the polypropylene composition having: i) an intrinsic viscosity of the fraction soluble in xylene at 25° C. between 2.2 and 4.0 dl/g; ii) a MFR L from 0.5 to 100 g/10 min; and iii) a xylene soluble fraction ranging from 10 wt % to 50 wt %, based upon the total weight of the polypropylene composition.

Abstract: A polyolefinic fiber made from or containing from 2 wt % to 20 wt % relative to the total weight of the fiber of a polyolefin composition made from or containing: A) 5-35% by weight of a propylene homopolymer or a propylene ethylene copolymer; B) 20-50% by weight of a copolymer of ethylene and a C3-C8 alpha-olefin containing from 0.1% to 20% by weight of alpha-olefin units and containing 25% by weight or less of a fraction soluble in xylene at 25° C.; and C) 30-60% by weight of a copolymer of ethylene and propylene containing from 25% to 75% by weight of ethylene units and containing from 40% to 95% by weight of a fraction soluble in xylene at 25° C.; the amounts of (A), (B) and (C) being referred to the total weight of (A)+(B)+(C), the sum of the amount of (A)+(B)+(C) being 100.

Abstract: A multilayer film made from or containing at least one core layer made from or containing a polypropylene composition made from or containing: A) from 95 wt % to 60 wt %; of a propylene homopolymer having a fraction insoluble in xylene at 25° C. greater than 90 wt %, based upon the total weight of the propylene homopolymer; and B) from 5 wt % to 40 wt %; of an heterophasic propylene ethylene copolymer, the sum of the amounts of A) and B) being 100.

Abstract: A process for the preparation of a solid catalyst component for the homo or copolymerization of olefins, wherein the solid catalyst component is made from or contains Mg, Ti, halogen and an electron donor selected from cycloalkyl ethers, wherein the process includes the steps of (a) dissolving a Mg based compound and a TiCl3 based compound in a liquid medium further made from or containing a cycloalkyl ether and a compound of formula R2OH where R2 is a C1-C20 hydrocarbon group, in which the Ti/Mg molar ratio ranges from 0.1 to 0.5, the cycloalkyl ether/Mg ratio ranges from 1 to 4 and the ROH/Mg molar ratio ranges from 1 to 4; and (b) adding, to the solution coming from step (a), SiCl4 in an amount such that the R2OH/SiCl4 molar ratio ranges from 0.5 to 1.5 and maintaining the temperature in the range 50-150° C. thereby precipitating the solid catalyst component particles.

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 polyolefin composition made from or containing: T1) 70-95 wt %, a polyolefin component containing: a1) from 30 wt % to 70 wt % of a propylene based polymer; and a2) from 30 wt % to 70 wt % of an ethylene based polymer; and T2) 5-30 wt % of an heterophasic propylene ethylene copolymer.

Abstract: A heat-shrinkable label made from or containing a terpolymer film containing propylene, ethylene and 1-hexene, wherein the terpolymer has: (i) a content of ethylene derived units ranging from 0.5 wt % to 5.0 wt %, (ii) a content of 1-hexene derived units ranging from 1.0 wt % to 6.0 wt %, (iii) a melt flow rate (MFR) (ISO 1133 230° C., 2.16 kg) ranging from 0.5 to 20 g/10 min, and (iv) a polydispersity index (P.I.) ranging from 2.0 to 7.0.

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 gas-phase process for the homopolymerization or copolymerization of propylene with other olefins, including carrying out the polymerization in the presence of a catalyst system made from or containing: (a) a solid catalyst component made from or containing Mg, Ti, halogen, an electron donor selected from 1.3-diethers and an olefin polymer in a specific amount; (b) an aluminum alkyl compound and (c) an external electron donor (ED) compound, wherein components (b) and (c) being employed in amounts such that the Al/(ED) molar ratio ranges from about 2 to about 200.