Abstract: A butene-1 polymer composition made from or containing: A) from 97.5% to 99.85% by weight, with respect to the total weight of A) and B), of a butene-1 polymer or polymer composition; B) from 0.15% to 2.5% by weight, with respect to the total weight of A) and B), of talc in form of particles having a volume-based particle diameter distribution Dv (0.95) of 45 ?m or lower; and, optionally C) from 0.01% to 2% by weight of an ethylene polymer, wherein the amount of C) being referred to the total weight of A)+B)+C), amounts to 100%.

Abstract: A polymer composition made from or containing: A) from 70 wt % to 95 wt % of a propylene ethylene copolymer having: an ethylene derived units content, measured by 13C NMR, ranging from 2.2 wt % and 9.8 wt %; and B) from 5.0 wt % to 30.0 wt % of a copolymer of 1-butene and ethylene containing from 3.0 wt % to 4.2 wt % of ethylene derived units, wherein the sum of the amounts of A) and B) being 100 wt %.

Abstract: A polyolefin-based hot melt adhesive composition made from or containing: (A) 28-75 wt. % of a copolymer of butene-1 with Melt Flow Rate values, measured according to ISO 1133 (190° C., 2.16 kg), from 200 to 1500 g/10 min.; and (B) 25-72 wt. % of at least one additional component selected from the group consisting of waxes, resins, plasticizers, additional polymers and mixtures thereof, wherein the amounts of A) and B) are referred to the total weight of A)+B).

Abstract: A stretched polyolefin filament, having elongation at break EB of equal to or higher than 80% and a ratio SR/EB, where SR is the stretching ratio, of equal to or lower than 45, made from or containing: a polyolefin composition (I), made from or containing A) from 40% to 78% by weight of a propylene polymer; B) from 22% to 60% by weight of a butene-1 polymer having: 1) a flexural modulus value from 100 to 800 MPa; 2) a ratio MI10/MI2 of from 20 to 40; and 3) a content of fraction soluble in xylene at 0° C. of 15% by weight or lower; wherein the amounts of A) and B) are referred to the total weight of A)+B).

Abstract: A process for producing a polybutene-1 composition including the step of: blending A) from 99.5 to 99.9% by weight, with respect to the total weight of A)+B), of a butene-1 polymer which is brought to a molten state or maintained in a molten state during the blending step; and B) from 0.1 to 0.5% by weight, with respect to the total weight of A)+B), of an alkanoyl hydrazine; wherein the resulting polybutene-1 composition, having a crystallization temperature TcC satisfying the following relation: T c C ? T c A + 5 where TcA is the crystallization temperature of the butene-1 polymer A).

Abstract: A stretched polyolefin filament, having elongation at break EB of equal to or higher than 90% and a ratio SR/EB, where SR is the stretching ratio, of equal to or lower than 75, made from or containing: a polyolefin composition (I), made from or containing A) from 80% to 95% by weight of a propylene polymer; B) from 5% to 20% by weight of a butene-1 polymer having: 1) a flexural modulus value from 100 to 800 MPa; 2) a ratio MI10/MI2 of from 20 to 40; and 3) a content of fraction soluble in xylene at 0° C. of 15% by weight or lower; wherein the amounts of A) and B) are referred to the total weight of A)+B).

Abstract: A polyethylene composition made from or containing: A) from 85% to 99% by weight of an ethylene polymer composition made from or containing: AI) from 80 to 95% by weight of an ethylene polymer component, having a density DI from 952 to 965 kg/m3 and a MIF of from 10 to 35 g/10 min.; and AII) from 5 to 20% by weight of an ethylene polymer component, having a density DII from 940 to 950 kg/m3 and a MIF value lower than the MIF value of AI); wherein the amounts of AI) and AII) are referred to the total weight of AI)+AII); and B) from 1% to 15% by weight of a butene-1 polymer component.

Abstract: A polyolefin-based hot melt adhesive composition made from or containing (A) 25-75 wt. % of a copolymer of butene-1 with a Melt Flow Rate, measured according to ISO 1133 (190° C., 2.16 kg), higher than 1500; and (B) 75-25 wt. % of at least one additional component selected from the group consisting of waxes, resins, plasticizers, additional polymers and mixtures thereof, wherein the amounts of A) and B) are referred to the total weight of A)+B).

Abstract: A polymer composition made from or containing: A) from 70 wt % to 95 wt % of a propylene-based polymer composition made from or containing: a) from 15 wt % to 35 wt % of a copolymer of propylene and 1-hexene containing from 6.2 to 8.5% by weight, of 1-hexene derived units; b) from 15 wt % to 35 wt % of a copolymer of propylene and 1-hexene containing from 10.4 wt % to 14.5 wt %, of 1-hexene derived units; and c) from 38 wt % to 68 wt % of a propylene ethylene copolymer, wherein the sum of the amount of a), b), and c) being 100; and B) from 5.0 wt % to 30.0 wt % of a copolymer of 1-butene and ethylene containing from 3.0 wt % to 4.2 wt % of ethylene derived units; wherein the sum of the amounts of A) and B) being 100 wt %.

Abstract: A copolymer of butene-1 with hexene-1 having: 1) a content of hexene-1 comonomer units from 2 to 4% by weight, based upon the total weight of the copolymer; and 2) a melting temperature TmI equal to or higher than 115° C.

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 butene-1 polymer composition made from or containing: A) from 97.5% to 99.85% by weight, with respect to the total weight of A) and B), of a butene-1 polymer or polymer composition; B) from 0.15% to 2.5% by weight, with respect to the total weight of A) and B), of talc in form of particles having a volume-based particle diameter distribution Dv (0.95) of 45 ?m or lower; and, optionally C) from 0.01% to 2% by weight of an ethylene polymer, wherein the amount of C) being referred to the total weight of A)+B)+C), amounts to 100%.

Abstract: A polyolefin composition made from or containing: a) from 85% to 98% by weight of a composition made from or containing: A) a copolymer of butene-1 with ethylene having a copolymerized ethylene content of up to 18% by mole and no melting peak detectable at the DSC at the second heating scan; and B) an inorganic filler; wherein the B)/A) weight ratio being from 0.3 to 4; and b) from 2% to 15% by weight of an additional polyolefin different from A).

Abstract: A butene-1 polymer composition having a MFR value of from 100 to 300 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 one or more comonomers 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 one or more comonomers 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 75% by weight or less, determined on the total weight of A) and B).

Abstract: A butene-1 polymer composition having MFR values of from 20 to less than 100 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 one or more comonomers selected from the group consisting of ethylene and higher alpha-olefins, having a copolymerized comonomer content of up to 5% by mole; and B) a copolymer of butene-1 with one or more comonomers 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 75% by weight or less, determined on the total weight of A) and B).

Abstract: A filled polyolefin composition made from or containing butene-1 copolymers having high melt flow and an inorganic filler. The compositions are useful for carpet backing.

Abstract: A polyolefin-based hot melt adhesive composition made from or containing: (A) 28-75 wt. % of a copolymer of butene-1 with Melt Flow Rate values, measured according to ISO 1133 (190° C., 2.16 kg), from 200 to 1500 g/10 min.; and (B) 25-72 wt. % of at least one additional component selected from the group consisting of waxes, resins, plasticizers, additional polymers and mixtures thereof, wherein the amounts of A) and B) are referred to the total weight of A)+B).

Abstract: A polyolefin-based hot melt adhesive composition made from or containing (A) 25-75 wt. % of a copolymer of butene-1 with a Melt Flow Rate, measured according to ISO 1133 (190° C., 2.16 kg), higher than 1500; and (B) 75-25 wt. % of at least one additional component selected from the group consisting of waxes, resins, plasticizers, additional polymers and mixtures thereof, wherein the amounts of A) and B) are referred to the total weight of A)+B).

Abstract: A butene-1 polymer having: a) a Melt Flow Rate value of from 20 to less than 100 g/10 min., measured according to ISO 1133 at 190° C. with a load of 2.16 kg; b) an intrinsic viscosity (IV) measured in tetrahydronaphthalene (THN) at 135° C. equal to lower than 0.95 dl/g; c) a Mw/Mn value equal to or lower than 3.5 and a lower limit of 1.5; d) a Mz value of 180,000 g/mol or higher; and e) optionally, a comonomer content of up to 10% 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).