Pirelli Tyre S.p.a.

Politecnico Di Milano

Thomas Hanel

Luca Giannini

Luca Castellani

Enrico Albizzati

Barbara Di Credico

Roberto Scotti

Antonio Alfonso Proto

Luciano Tadiello

Carmine Capacchione

Maurizio Stefano Galimberti

Massimiliano D'Arienzo

Franca Morazzoni

Davide Dall'abaco

Antonio Susanna

Raffaella Donetti

Marco Orlandi

Valeria Rosaria Cipolletti

Carlo Vittorio Mazzocchia

Matteo Antonio Daghetta

Attillio Citterio

Cristiano Puppi

Attilio Citterio

Luigia Rossiello

Jorge Jose Perez Cacho

Daniel Javier Julve Sebastian

Luca Zoia

Virna Formaggio

Guido Luigi Daghini

Alfredo Balini

Marco Arimondi

Lorenzo Pellegrino

Giuseppina Ratti

Simone Agresti

Pierluigi De Cancellis

Luca Beverina

Emiliano Resmini

Paola Caracino

Antonio Monterosso

Barbara Rampana

Marco Pozzoli

Silvia Mostoni

Guido Carlo Carosio

Francesco Parazzoli

Juergen Wagemann

Paola Frigerio

Marianna Zinna

Elkid Cobani

Giulia Peli

Syed Danish Ali

Davide Barana

Matteo Redaelli

Irene Tagliaro

Paolo Brazzo

Luca Napolitano

Valeria Cipolletti

Jorge José PÉREZ Cacho

Daniel Javier Julve SEBASTIÁN

The present disclosure relates to a tyre () for vehicle wheels comprising at least one carcass structure (), a tread band () applied in a position radially external to said carcass structure, and a pair of sidewalls () applied laterally on the opposite sides with respect to said carcass structure, where on at least one sidewall of said pair of sidewalls (), a label () is applied comprising a protective layer (), an adhesive layer (), and possibly one or more ink layers () interposed between said protective layer () and said adhesive layer (), where said adhesive layer () adheres the label () to the surface of said sidewall, where said protective layer () comprises polyester-based and/or polyether-based cross-linked aliphatic polyurethanes exhibiting dynamic elastic modulus values E', measured at 25° C., static tensile deformation 1%, dynamic deformation ±0.1%, and frequency 1 Hz, equal to or higher than about 5 MPa, and a residual deformation measured at 25° C. after 4 cycles of deformation from 0% to 12%, equal to or lower than about 1%.

Tyre for vehicle wheels

The present invention relates to a soundproof tyre for vehicle wheels comprising a noise reducing element made by vulcanising a vulcanisable and expandable elastomeric compound comprising at least one elastomeric polymer, at least one expanding agent, and at least one compound selected from the group of (i) fatty acid amides and (ii) polymers and copolymers of caprolactone, lactic acid, glycolic acid, and mixtures thereof.

Soundproof tyre for vehicle wheels

The present disclosure relates to a process and apparatus for manufacturing a metallic reinforcing cord for tyres for vehicle wheels comprising providing at least one elongated element comprising at least one metallic wire twisted together with at least one textile yarn and removing the at least one textile yarn from the at least one elongated element to form the aforementioned metallic reinforcing cord a wherein the metallic reinforcing cord has a helical geometry, consisting of the at least one metallic wire that extends along a helical path.

Process and apparatus for manufacturing a metallic reinforcing cord for tyres for vehicle wheels

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.

The present invention relates to a tyre for vehicle wheels comprising at least one external structural element comprising at least one external structural element comprising a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition comprising (i) at least one diene elastomeric polymer, and (ii) a system for protection against ozone substantially free of polymeric static protective agents which essentially consists of at least one phenolic antioxidant in an amount substantially equal to or higher than 3 phr.

The present invention relates to a compound represented by the formula (II): CB-O-ROS-GC-Zn (II) where CB represents the white filler, O represents one or more oxygen bridge bonds, ROS represents an organo-silane residue, GC represents one or more coordinating groups forming a chelate with zinc in ionic form represented by linear, branched or cyclic alkyl chains, comprising one or more heteroatoms inside or at the end of the alkyl chain, and Zn represents zinc in ionic form coordinated with the coordinating groups, a process for the preparation thereof, and the use thereof in the vulcanisation process of elastomeric compounds.

Process for preparing compounds for tyres and tyres comprising them

The present invention relates to a tire () for vehicle wheels comprising a tire component comprising a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition, wherein said elastomeric composition comprises a polymer blend comprising (a) 50 to 95 percent by weight of a first elastomeric polymer and (b) 5 to 50 percent by weight of a second elastomeric polymer based on the total weight of the polymer blend. The second elastomeric polymer (b) is obtainable by (i) anionic polymerization of at least one conjugated diene monomer and one or more a-olefin monomer(s) in the presence of a polymerization initiator in an organic solvent, and (ii) coupling the polymer chains obtained in (i) by a coupling agent. The second elastomeric polymer (b) has a weight-average molecular weight (Mw) in the range of 5,000-40,000 g/mol and a coupling rate of at least 50 percent by weight.

Tire for vehicle wheels

The present invention relates to a process for preparing a vulcanisable elastomeric compound for tyres, characterised by the use of a particular vulcanisation-activating filler and by the methods of adding additives, in particular the compatibilising agent (silane), which occurs only after completion of the reaction between the activating filler comprising zinc and the fatty acid (stearic acid). The present process, advantageous in itself due to the possible reduction of the times and of the energy required for vulcanisation, allows preparing compounds which, with the same performances compared to the traditional ones, can have a reduced zinc content, and consequently a lower release thereof from tyres during use at an environmental level.

The present invention relates to a tyre for vehicle wheels comprising at least one structural element comprising a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition comprising a predispersion of natural rubber and lignin obtained by co-precipitation from latex, where said lignin has a concentration of phenolic groups higher than 2 mmol per gram of lignin, and where said predispersion comprises an amount of said lignin such as to provide, in said crosslinkable elastomeric composition, a concentration of lignin equal to or lower than about 25 phr.

The invention relates to a tyre () for vehicle wheels comprising at least one structural element comprising a vulcanized elastomeric material obtained by vulcanizing a vulcanizable elastomeric composition comprising at least one vulcanizable diene elastomeric polymer and at least one composite reinforcing filler, a process for producing a tyre () comprising the composite reinforcing filler, a masterbatch comprising the composite reinforcing filler and a process for producing the same, as well as a process for producing the composite reinforcing filler.

Tyre for vehicle wheels comprising a composite reinforcing filler

The present invention relates to new vulcanisable elastomeric compositions for components of tyres, comprising modified silicate fibres as fillers. The silicate fibres are modified according to the process with controlled pH of the invention. In addition, the invention regards components of tyres, comprising elastomeric materials obtainable by vulcanisation of said compositions, and tyres for vehicles comprising one or more of said components. The vulcanised elastomeric materials according to the invention are characterised by good static and dynamic mechanical properties, in particular by particularly low hysteresis. Advantageously the tyres of the invention comprising one or more of said components have a limited rolling resistance.

Elastomeric materials for components of tyres and tyres comprising modified silicate fibres

Microbeads are described, comprising silica fibres with needle-shaped morphology of nanometric size, characterised by reduced dustiness and good dispersibility in elastomeric materials, a process for the preparation thereof and the use thereof in the production of vehicle tyres.

Microbeads comprising silicate fibres with needle-shaped morphology of nanometric size, preparation thereof, elastomeric compositions and tyres for vehicles comprising them

The present invention regards a solid master elastomeric composition (masterbatch, MB) comprising silicate fibres with needle-shaped morphology of nanometric size, characterised by high fibre content and uniformity, a process advantageous for the preparation thereof and its use in manufacturing tyres for vehicles. Advantageously the present elastomeric composition allows minimising the drawbacks associated with the handling of the powdery fibres in the manufacturing of compounds for tyres, without altering the final performances thereof.

Elastomeric compositions comprising silicate fibres with needle-shaped morphology of nanometric size and tyres for vehicles that comprise them

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Milan, Italy

Thomas Hanel