Abstract: The present invention relates to a tyre for vehicle wheels, in particular automobile wheels, characterised by a tread comprising at least one iso-styrene/trans-butadiene/terpene random terpolymer. Said tread is characterised by a greater tear resistance and a greater grip of the tyre to the roadbed.

Abstract: The present invention relates to elastomeric compositions for tyres and relative compounds, components and tyres comprising them, said compositions comprising an elastomeric polymer, a phenolic product, optionally already partially cross-linked, optionally an aldehyde and/or at least a methylene donor product and an oxidised carbon allotrope as a cross-linking catalyst. Advantageously, this catalyst is able to complete the cross-linking reactions of the phenolic resins in the conventional times and conditions of vulcanisation, or even more rapidly, providing mechanically stable compounds.

Abstract: The present invention relates to a tire for vehicle wheels comprising at least one structural component comprising at least one reinforcing element comprising an elongate member coated with, or embedded in, a vulcanised elastomeric compound obtained by vulcanising an elastomeric composition comprising per 100 phr of diene elastomeric polymer: (i) a predispersion of a diene elastomeric polymer and lignin, in an amount to provide the elastomeric composition with 100 to 10 phr of diene elastomeric polymer and an amount of lignin equal to or greater than 25 phr. (ii) 0 to 90 phr of a diene elastomeric polymer, (iii) at least 30 phr of a carbon black reinforcing filler, (iv) optionally, a reinforcing resin comprising at least 1 phr of a methylene acceptor compound associated with at least 1 phr of a methylene donor compound, and (v) 0.1 to 12 phr of at least one vulcanising agent, wherein at least 50 phr of said diene elastomeric polymer consists of natural or synthetic isoprene rubber.

Abstract: The present invention relates to compositions for elastomeric compounds for tyres, comprising polytetrazole cross-linking compounds characterized by precise activation temperatures, tyre components and tyres for vehicle wheels which comprise them. Advantageously, the present polytetrazole cross-linking agents give lower hysteresis and retention of the modulus of the compounds even under stress.

Abstract: The present invention relates to a tyre for vehicle wheels comprising at least one structural component comprising a vulcanised elastomeric compound obtained by vulcanising a vulcanisable elastomeric compound made by mixing an elastomeric composition comprising (i) at least one diene elastomeric polymer, and (ii) a reinforcing filler comprising (a) needle-shaped morphology silicate fibres having nanometric size, (b) carbon nanotubes, and (c) optionally, carbon black and/or conventional silica.

Abstract: The present invention relates to a tyre for vehicle wheels comprising at least one structural component comprising a vulcanised elastomeric compound obtained by vulcanising a vulcanisable elastomeric compound made by mixing an elastomeric composition comprising (i) at least one diene elastomeric polymer, and (ii) a reinforcing filler comprising (a) needle-shaped morphology silicate fibres having nanometric size, and (b) finely dispersed carbon black having a surface area NSA greater than 100 m2/g and a surface area OAN greater than 100 ml/100 g, and (c) optionally, conventional silica.

Abstract: The present invention relates to compositions for elastomeric compounds for tyres, comprising modified diene polymers (A1) terminated with at least one tetrazole group (E) comprising at least one 2,5 disubstituted tetrazole which may be activated by heating, tyre components and tyres for vehicle wheels comprising them. Advantageously, the present modified diene polymers (A1) impart to the compounds lower hot hysteresis and reduced Payne effect and, consequently, lower rolling resistance and wear. Furthermore, the present polymers do not exhibit the processability problems shown by conventional functionalised diene polymers, with high affinity for white fillers.

Abstract: The present invention relates to compositions for elastomeric compounds for tyres, comprising polytetrazole cross-linking compounds characterized by precise activation temperatures, tyre components and tyres for vehicle wheels which comprise them. Advantageously, the present polytetrazole cross-linking agents give lower hysteresis and retention of the modulus of the compounds even under stress.

Abstract: The present invention relates to adducts between sp2 hybridized carbon allotropes and pyrrole derivatives comprising at least one sulphur atom, and crosslinkable elastomer compositions comprising such adducts. The present invention further relates to tyres for vehicle wheels comprising at least one structural element comprising a crosslinked elastomer material obtained by crosslinking of such crosslinkable elastomer compositions.

Abstract: The present invention relates to a process for the preparation of diketones and pyrrole derivatives, optionally substituted in the 2 and/or 5 positions, from furans.

Abstract: The present invention relates to new polyurethane or polyurea organic reinforcing fillers for elastomeric tyre compounds, tyre components and tyres for vehicle wheels that comprise them. Advantageously these organic fillers allow reducing the weight of the elastomeric compounds that include them and confer to the materials a hysteresis that is in line or even lower, moduli stable at different temperatures, and high load/elongation at break.

Abstract: The present invention relates to a tire for vehicle wheels comprising at least one structural component comprising at least one reinforcing element comprising an elongate member coated with, or embedded in, a vulcanised elastomeric compound obtained by vulcanising an elastomeric composition comprising per 100 phr of diene elastomeric polymer: (i) a predispersion of a diene elastomeric polymer and lignin, in an amount to provide the elastomeric composition with 100 to 10 phr of diene elastomeric polymer and an amount of lignin equal to or greater than 25 phr. (ii) 0 to 90 phr of a diene elastomeric polymer, (iii) at least 30 phr of a carbon black reinforcing filler, (iv) optionally, a reinforcing resin comprising at least 1 phr of a methylene acceptor compound associated with at least 1 phr of a methylene donor compound, and (v) 0.1 to 12 phr of at least one vulcanising agent, wherein at least 50 phr of said diene elastomeric polymer consists of natural or synthetic isoprene rubber.

Abstract: The present invention relates to a tire for vehicle wheels which comprises at least one structural component comprising at least one reinforcing element constituted by an elongate element coated with, or embedded in, a vulcanised elastomeric compound obtained by vulcanising an elastomeric composition comprising per 100 phr of diene elastomeric polymer: (i) a predispersion of a diene elastomeric polymer and lignin, in an amount to provide the elastomeric composition with 100 to 10 phr of diene elastomeric polymer and a quantity of lignin equal to or greater than 20 phr, (ii) from 0 to 90 phr of a diene elastomeric polymer, (iii) at least 30 phr of a carbon black reinforcing filler, (iv) optionally, a reinforcing resin comprising at least 0.5 phr of a methylene acceptor compound associated with at least 0.2 phr of a methylene donor compound, (v) from 0.1 to 10 phr of carbon nanotubes, and (vi) from 0.

Abstract: A tyre monitoring device with an electronic unit enclosed in an encapsulation material. The encapsulation material forms a single body with an upper portion and a lower portion. The upper portion encloses and protects the electronic unit and the lower portion has a base surface aimed at fixing said device to the inner surface of the tyre.

Abstract: The present invention relates to a tyre for vehicle wheels comprising at least one structural element comprising a cross-linked elastomeric material obtained by cross-linking a cross-linkable elastomeric composition comprising carbon nanotubes, wherein said carbon nanotubes are obtained with an iron oxides and/or aluminium oxides based catalyst substantially free of Co, Ni and Mo.

Abstract: The present invention relates to compositions for elastomeric compounds for tyres, in particular for tyre treads, comprising particular reversible cross-linking agents, tyre components and tyres for vehicle wheels which comprise them. The present elastomeric compounds, due to their particular hysteretic behaviour, allow manufacturing tyres characterised by a lower rolling resistance during moderate driving and at the same time greater resistance to tearing and road grip during sports driving.

Abstract: The present invention relates to a self-supporting tyre (100) for motor vehicles which comprises sidewall reinforcing inserts (113A, 113B) with different stiffness. In particular, the sidewall reinforcing insert on the side of the tyre most stressed during driving is less rigid than the sidewall reinforcing insert on the less stressed side. The tyre of the invention exhibits a reduced rolling resistance and better comfort in normal driving and an unexpected increase in mileage in run-flat driving.

Abstract: A tyre (100) for vehicle wheels is described comprising at least one structural element comprising a vulcanized elastomeric material obtained by vulcanizing a vulcanizable elastomeric composition comprising a predispersion of an elastomeric diene polymer and lignin obtained by a process comprising: a) providing in a dispersant liquid a first lignin suspension having a value of a median particle diameter D50 equal to or less than 10 microns; b) providing a second suspension comprising lignin and elastomeric diene polymer latex by mixing the first lignin suspension obtained from step a) with the latex; and c) removing the dispersant liquid from the second suspension comprising lignin and elastomeric diene polymer latex.

Abstract: The present invention relates to compositions for elastomeric compounds for tyres, comprising monotetrazole compatibilizing agents characterised by precise activation temperatures, tyre components and tyres for vehicle wheels which comprise them. Advantageously, the present monotetrazole compatibilizing agents allow the breaking properties of the compounds to be improved while maintaining a high compatibilisation of the filler.

Abstract: The present invention relates to self-supporting tyres for vehicle wheels having sidewall reinforcement inserts (113) with reduced rigidity. These tyres have a good mileage in flat running conditions, greater comfort and significantly reduced rolling resistance compared to known self-supporting tyres, with higher modulus sidewall reinforcement inserts.