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: The present disclosure provides a polyolefin composition made from or containing: A) from about 63 to about 78% by weight of a copolymer of butene-1 with ethylene having a copolymerized ethylene content of up to about 18% by mole and no melting peak detectable at the DSC at the second heating scan; B) from about 22 to about 37% by weight of (i) a propylene homopolymer, or (ii) a propylene copolymer, or (iii) a mixture of two or more of (i) and (ii), having a melting temperature Tm, measured by DSC at the second heating scan, of from about 130° C. to about 165° C.; wherein (i) the amounts of A) and B) are referred to the total weight of A)+B) and (ii) having a melting enthalpy ?Hfus, measured by DSC at the second heating scan, of from 7 to 30 J/g.

Abstract: The present disclosure provides a gasket for closures made from or containing a polyolefin composition (I) made from or containing A) from about 25 to about 62% by weight of a copolymer of butene-1 with ethylene having a copolymerized ethylene content of up to about 18% by mole and without a melting peak detectable at the DSC at the second heating scan; B) from about 38 to about 75% by weight of (i) a propylene homopolymer, or (ii) a propylene copolymer, or (iii) a mixture of two or more of (i) and (ii), having a melting temperature Tm, measured by DSC at the second heating scan, of from about 130° C. to about 165° 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 about 10° C. per minute.

Abstract: The present disclosure provides a polyolefin composition made from or containing: A) from about 63 to about 78% by weight of a copolymer of butene-1 with ethylene having a copolymerized ethylene content of up to about 18% by mole and no melting peak detectable at the DSC at the second heating scan; B) from about 22 to about 37% by weight of (i) a propylene homopolymer, or (ii) a propylene copolymer, or (iii) a mixture of two or more of (i) and (ii), having a melting temperature Tm, measured by DSC at the second heating scan, of from about 130° C. to about 165° C.; wherein (i) the amounts of A) and B) are referred to the total weight of A)+B) and (ii) having a melting enthalpy ?Hfus, measured by DSC at the second heating scan, of from 7 to 30 J/g.

Abstract: The present disclosure generally relates to a hot melt adhesive polyolefin composition comprising a high melt flow, butene-1 copolymer suitable to be used as a glue in the paper and packaging industry, in furniture manufacturing, e.g. for edgebands, square edges and softforming, for paneling in high moisture environments, and as a glue in tufted or needle punched carpets.

Abstract: Multilayer film (BOPP) structure comprising 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: Extruded or molded profiles comprising a polyolefin composition consisting of 85% by weight or more of a copolymer of 1-butene with ethylene (A) having an ethylene copolymerized content up to 18% by mol, and having Mw/Mn lower than 3, hardness shore A (measured according to ISO 868) lower than 90, no melting point (TmII) detectable at the DSC after cancelling the thermal history, melting enthalpy (?Hf), measured by DSC after 10 days of aging at room temperature, comprised between 4 and 15 J/g; and up to 15% by weight of a propylene copolymer or a composition of copolymers of propylene (B) having a melting point from about 126° C. to 200° C., isotactic index greater than 90%.

Abstract: Extruded or molded profiles comprising a polyolefin composition consisting of 85% by weight or more of a copolymer of 1-butene with ethylene (A) having an ethylene copolymerized content up to 18% by mol, and having Mw/Mn lower than 3, hardness shore A (measured according to ISO 868) lower than 90, no melting point (TmII) detectable at the DSC after cancelling the thermal history, melting enthalpy (?Hf), measured by DSC after 10 days of aging at room temperature, comprised between 4 and 15 J/g; and up to 15% by weight of a propylene copolymer or a composition of copolymers of propylene (B) having a melting point from about 126° C. to 200° C., isotactic index greater than 90%.

Abstract: A 1-butene ethylene copolymer having an ethylene derived units content ranging from 15.10% by molto 18.00% by mol having the following properties: a) distribution of molecular weight lower than 3; preferably b) hardness shore A (measured according to ISO 868) lower than 65; c) tension set lower than 30% at 100% of deformation (ISO 2285) d) no melting pointdetectable at the DSC; e) Melting enthalpy measured after 10 days of aging at room temperature comprised between 4 and 15 J/g.

Abstract: A 1-butene ethylene copolymer having an ethylene derived units content ranging from 15.10% by molto 18.00% by mol having the following properties: a) distribution of molecular weight lower than 3; preferably b) hardness shore A (measured according to ISO 868) lower than 65; c) tension set lower than 30% at 100% of deformation (ISO 2285) d) no melting pointdetectable at the DSC; e) Melting enthalpy measured after 10 days of aging at room temperature comprised between 4 and 15 J/g.

Abstract: A process for cross-linking an elastomer-containing thermoplastic polyolefin composition comprising the steps of preparing a masterbatch by mixing and/or masticating an elastomeric polyolefin with a cross-linking co-agent, and optionally an additive, in the presence of a thermoplastic polyolefin; then, cooling the masterbatch obtained in the preceding step at least up to the solidification of the thermoplastic polyolefin; and finally mixing and/or masticating the masterbatch, after the cooling step, with a cross-linking agent and optionally an additive.

Abstract: A process for cross-linking an elastomer-containing thermoplastic polyolefin composition comprising the steps of preparing a masterbatch by mixing and/or masticating an elastomeric polyolefin with a cross-linking co-agent, and optionally an additive, in the presence of a thermoplastic polyolefin; then, cooling the masterbatch obtained in the preceding step at least up to the solidification of the thermoplastic polyolefin; and finally mixing and/or masticating the masterbatch, after the cooling step, with a cross-linking agent and optionally an additive.

Abstract: A process for cross-linking an elastomer-containing thermoplastic polyolefin composition comprising the steps of preparing a masterbatch by mixing and/or masticating an elastomeric polyolefin with a cross-linking co-agent, and optionally an additive, in the presence of a thermoplastic polyolefin; then, cooling the masterbatch obtained in the preceding step at least up to the solidification of the thermoplastic polyolefin; and finally mixing and/or masticating the masterbatch, after the cooling step, with a cross-linking agent and optionally an additive.

Abstract: The invention concerns polyolefin compositions with high flame resistance. The compositions comprise (percent by weight): A) from 20 to 60% by weight of a heterophasic olefin polymer composition comprising a crystalline olefin polymer (a) and an elastomeric olefin polymer (b), said composition (A) being optionally modified with at least one functional monomer in an amount from 0.005% to 0.6% by weight with respect to the total weight of the total composition; B) from 15 to 40% by weight of one or more than one inorganic hydrated fillers; C) from 12 to 40% by weight of one or more than one organic flame retardants containing nitrogen in the molecule; D) from 0 to 40% by weight of one or more than one inorganic anhydrous fillers. Possible applications include the use as insulating material in electric wires and cables and the use as waterproofing sheets for roofs and tunnels.