Pirelli Tyre S.p.a.

Freni Brembo S.p.a.

Petroceramics S.p.a.

Brembo Ceramic Brake Systems S.p.a.

Chorisis S.r.l.

Marco Orlandi

Luca Castellani

Thomas Hanel

Massimiliano Valle

Ralf Siegfried Goller

Paolo Vavassori

Simone Turani

Andrea Gavazzi

Luca Zoia

Guido Galliani

Furio Rozza

Alberto Terraneo

Roberto Vavassori

Syed Danish Ali

Bernardino Mauri

Mirco Chiodi

Bruno Rindone

Davide Barana

Konstantin Vikulov

Riccardo Piavani

Ralf Siegfried Golleb

Ralf Siegfried Freni Brembo SpA Goller

Paola Frigerio

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.

Tyre for vehicle wheels

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

A brake disc made of fiber-reinforced material includes a braking band having a predetermined thickness. The method for making the brake discs includes setting up a winding mandrel and forming at least one layer of fibers having a predetermined width. The layer of fibers is impregnated with a binder resin. The impregnated layer is wound about the mandrel, forming a hollow cylindrical body having a predefined outer diameter and an inner diameter substantially equivalent to the mandrel diameter. The layer of fibers is wound about the mandrel in a winding direction substantially parallel to the lengthwise direction of the layer. The cylindrical body is heated to at least partly cross-link the binder resin and obtain a solid semi-finished cylindrical body. The cylindrical body is cut in slices transversely to the cylindrical body axis according to predetermined thicknesses. Each slice is a disc-shaped body defining the disc's braking band.

Method for making brake discs in fiber reinforced material and brake disc made with such method

Method for making a ceramic matrix material for brake friction components, in particular disc brakes, including the following operational phases: a) prepare a mixture of at least one siliconic type ceramic precursor, particles of hard materials suitable as abrasives, particles of substances suitable as lubricants and particles of metal materials; b) hot-press the mixture to obtain a green body; c) submit the green body to a process of pyrolysis in order to achieve ceramisation of the preceramic binder, thus obtaining a ceramic matrix material. The mixture includes a catalyst suitable for favoring reticulation of the ceramic precursor during the hot-pressing phase and the pyrolysis process is carried out at temperatures below 800&#xb0; C., more precisely between 400&#xb0; C. and 600&#xb0; C.

Method for making a ceramic matrix material for friction components of brakes and ceramic matrix material made by such method

This invention relates to a process for the production of a shaped composite material and the material obtained through that process. In particular it relates to a process for obtaining a disk of composite ceramic material for disc brakes in which the friction coefficient is varied by varying the composition of the surface layer.

Shaped composite material

A method for making a composite structure or a portion of a composite structure of a braking band of a brake disc, unusually capable of obtaining a structure with an especially long life, comprising at least the following steps:

Braking band composite structure of a brake disc

N-(2-hydroxyalkanoyl)-N,N'-dialkylureas of general formula (1) are describedA-X-(A)&#x2003;&#x2003;(1)where A: m=0 or m=1; when m=0, X=R&#x2032;&#x2033;, where R&#x2032;&#x2033; is an aliphatic, cycloaliphatic, arylaliphatic radical, C-C; when m=1, X=&#x2014;(CH)&#x2014;, where n is an integer from 1 and 20, preferably from 2 to 6; R is chosen among H, and alkyl radicals C-C, possibly substituted with halogen atoms; R&#x2032; is an aliphatic, cycloaliphatic, arylaliphatic radical, C-C; R&#x2033; is chosen among H, aliphatic, cycloaliphatic, arylaliphatic radical, C-C. The preparation of said compounds is described, as well as the preparation of corresponding polymers.

N-(2-hydroxyalkanoyl)-N,N'-dialkylureas and a process for their preparation

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Milan, Italy

Marco Orlandi