Abstract: A polyolefin composition made from or containing: A) from 88% to 99% by weight of an ethylene polymer having MIP of equal to or higher than 5 g/10 min, where MIP is the melt flow index at 190° C. with a load of 5 kg, determined according to 1133-2:2011; and B) from 1% to 12% by weight of a butene-1 polymer having MIE of equal to or higher than 800 g/10 min., where MIE is the melt flow index at 190° C. with a load of 2.16 kg, determined according to 1133-2:2011; wherein the amounts of A) and B) are referred to the total weight of A)+B).

Abstract: A polyolefin composition comprising: A) 20-95 wt % of a propylene homo-polymer or a crystalline co-polymer of propylene with ethylene and/or an alpha-olefin having 4-10 carbon atoms, containing 85 wt % or more of propylene, having an isotactic index equal to or higher than 80; B) 5-80 wt % of a copolymer of butene-1 with ethylene and/or an alpha-olefin having 3-10 carbon atoms having: a content of butene-1 derived units of 80 wt % wt or more, molecular weight distribution Mw/Mn of less than 3 flexural modulus of 60 MPa or less. Fibres and spun bond (woven non woven), disposable sanitary items (e.g. diapers) thereof.

Abstract: A polyolefin composition comprising: A) 20-95 wt % of a propylene homo-polymer or a crystalline co-polymer of propylene with ethylene and/or an alpha-olefin having 4-10 carbon atoms, containing 85 wt % or more of propylene, having an isotactic index equal to or higher than 80; B) 5-80 wt % of a copolymer of butene-1 with ethylene and/or an alpha-olefin having 3-10 carbon atoms having: a content of butene-1 derived units of 80 wt % wt or more, molecular weight distribution Mw/Mn of less than 3 flexural modulus of 60 MPa or less. Fibres and spun bond (woven non woven), disposable sanitary items (e.g. diapers) thereof.

Abstract: A polyolefin composition comprising (parts by weight): A) 50-90% of of polypropylene homopolymer with an isotactic index (percentage by weight of fraction insoluble in boiling n-heptane) higher than 80, preferably between 90 and 98, or crystalline copolymer of propylene with ethylene and/or an alpha-olefin having 4-10 carbon atoms, containing 85% or more of propylene and having an isotactic index equal to or higher than 80; B) 10-50% of Butene-1 (co)polymers having a content of butene-1 units in the form of isotactic pentads (mmmm) from 25 to 70%; intrinsic viscosity [?] measured in tetraline at 135° C. from 1 to 3 dL/g; a content of xylene insoluble fraction at 0° C. from 3 to 60%. Fibers and spun bond (woven non woven) thereof.

Abstract: A material having insecticidal and acaricidal properties comprising: A) From 99.95 by weight to 70.0% by weight a propylene based polymer obtainable by using a catalyst system comprising a metallocene compound having the following properties: i) a Melt Flow Rate (MFR) (ISO 1133) comprised between 2 and 100; ii) A distribution of molecular weight Mw/Mn lower than 4; iii) Isotactic pentads (mmmm) comprised between 90% and 99%; B) From 0.05% to 30% by weight of an adduct of formula T1-T2 resulting from the condensation of T1 and T2, wherein T1 comprises at least one pyrethroid substance, which is substantially stable up to a temperature of at least 150° C.; T2 is an ethylenically unsaturated substance chooses from the group consisting of: (a) a surfactants, (b) vinyl phospates and (c) mixtures thereof.

Abstract: A polyolefin nanocomposite material comprising the following components: (A) a crystalline or semi-crystalline polyolefin resin; and (B) a nanosize layered mineral filler, wherein the amount of inorganic fraction of the layer mineral filler is from 0.02 to 3 parts by weight per 100 parts by weight of polyolefin resin (A), and the ratio MFR (1)/MFR (2) of the melt flow rate value MFR (1) of component (A) to the melt flow rate value MFR (2) of the polyolefin nanocomposite material is of at least 1.

Abstract: Fibres exhibiting good elastic properties and made from a thermoplastic, elastomeric polyolefin composition comprising (percent by weight): (A) 10 to less than 50% of one or more crystalline propylene polymers selected from homopolymers of propylene and random interpolymers of propylene and one or more recurring units in amounts up to 10%, the recurring units being selected from ethylene and a C4-C10 ?-olefin, the polymer(s) being insoluble in xylene at room temperature in an amount higher than 80%; and (B) over 50 to 90% of a polymer fraction comprising one or more interpolymers of ethylene and at least one ?-olefin of formula H2C?CHR2, where R2 is a C1-C8 linear or branched alkyl, containing from 13 to less than 60% of recurring units deriving from ethylene. The fibres are prepared by a process operating at a value of output per hole ranging from 5 to 15 g/min, the pressure in the extruder ranging from 15 to 30 bar, the temperature in the extruder head ranging from 200 to 300° C.