Abstract: A mixture comprising a bitumen (A), and a polymer composition (B) comprising the following components, all percent amounts being by weight: I) from 1 to 30% of a butene-1 polymer having a Melt Flow Rate (MFR), measured according to ASTM D 1238, at 190° C./2.16 kg, from 0.1 to 1000 g/10 min.; and II) from 70 to 99% of a heterophasic polyolefm composition comprising the following polymer fractions: a) 4-45% of a propylene homopolymer or copolymer; b) 0-20% of a of a copolymer fraction containing ethylene, insoluble in xylene at room temperature; c) 40-95% of a copolymer of ethylene with propylene and/or a CH2?CHR ?-olefin, where R is a C2-C8 alkyl radical, containing ethylene in a quantity lower than 40% and being soluble in xylene at room temperature.

Abstract: Use of propylene copolymers with up to 50 wt % of units derived from at least one linear or branched alpha-olefin having from 2 to 10 carbon atoms other than propylene for producing injection-molded coating on a metallic pipe.

Abstract: A mixture comprising a bitumen (A), and a polymer composition (B) comprising the following components, all percent amounts being by weight: I) from 1 to 30% of a butene-1 polymer having a Melt Flow Rate (MFR), measured according to ASTM D 1238, at 190° C./2.16 kg, from 0.1 to 1000 g/10 min.; and II) from 70 to 99% of a heterophasic polyolefm composition comprising the following polymer fractions: a) 4-45% of a propylene homopolymer or copolymer; b) 0-20% of a of a copolymer fraction containing ethylene, insoluble in xylene at room temperature; c) 40-95% of a copolymer of ethylene with propylene and/or a CH2?CHR ?-olefin, where R is a C2-C8 alkyl radical, containing ethylene in a quantity lower than 40% and being soluble in xylene at room temperature.

Abstract: Use of propylene copolymers with up to 50 wt % of units derived from at least one linear or branched alpha-olefin having from 2 to 10 carbon atoms other than propylene for producing injection-molded coating on a metallic pipe.

Abstract: A process for effecting a coupling between a plastic material and a metal surface comprising the steps of applying a powder of an adhesive polymer composition to the metal surface; then overmoulding the metal surface with a plastic material by injection moulding; and finally applying heat to the metal surface.

Abstract: Polyolefin compositions in powder form suited for metal coating, including (percentage by weight): 1) from 1% to 40% of hollow microspheres; 2) from 60% to 99% of a composition comprising: a) from 25% to 95% of polypropylene, polyethylene or crystalline propylene copolymers or mixtures thereof; b) from 0% to 70% of an elastomeric copolymer; c) from 0.5% to 10% of propylene or polyethylene modified with polar groups; d) from 0% to 10% of titanium dioxide.

Abstract: Polyolefin compositions in powder form suited for metal coating, comprising (percentage by weight):

Abstract: Polypropylene composition comprising by weight (A) 60-90% of at least one heavy mineral filler having a specific weight greater than or equal to 3; (B) 0.1-4% of a filler compatibilizer; and (C) 10-40% of a heterophasic polyolefin composition containing rubber. Said composition has an MIL ranging from 0.5 to 10 g/10 min, elongation at break greater than 100 to 800%, and flexural modulus ranging from 100 to less than 3000 MPa.

Abstract: Polyolefin compositions in powder form suited for metal coating, including (percentage by weight): 1) from 1% to 40% of hollow microspheres; 2) from 60% to 99% of a composition comprising: a) from 25% to 95% of polypropylene, polyethylene or crystalline propylene copolymers or mixtures thereof; b) from 0% to 70% of an elastomeric copolymer; c) from 0.5% to 10% of propylene or polyethylene modified with polar groups; d) from 0% to 10% of titanium dioxide.

Abstract: Process for repairing plastic coatings of metal pipes, that allows the repairs to be done in a very short time, by applying, in specific operating phases, a polyolefin adhesive in powder form and polyolefin tapes, and then applying heat using an inert gas-shielded flame.

Abstract: Process for repairing plastic coatings of metal pipes that allows one to make the repair using only a flame as a source of heat, including the application of protective shields during specific operating phases of the process.

Abstract: Disclosed is a process for coating the inner surface of metal containers by deposition of specific polyolefin compositions on the separate parts of the containers, subsequent assembly of the parts and melting of the polyolefin compositions.

Abstract: Disclosed are functionalized polyolefins prepared by mixing a polyolefin with a concentrate and extruding the resulting blend, where the concentrate is in the form of olefin polymer particles coated with a mixture of additives including:A) from 0.05 to 30% by weight, based on the total weight of the concentrate, of one or more nonpolymerizable polar vinyl monomers;B) from 0.05 to 30% in moles, with respect to (A), of a free radical generating initiator which is not active at temperatures lower than or equal to 70.degree. C., and optionally,C) from 0.1 to 5% by weight, based on the total weight of the concentrate, of a coating substance.