Bridgestone Corporation

Salvatore Cotugno

Ludovica Caliano

Veronica Cantonetti

Paolo Straffi

Paolo Fiorenza

Valeria Grenci

John Nazareno House

Enrico Carone

Barbara Secchi

Giovanna Mancini

Luisa Giansanti

Alessandro Mauceri

Martina Gruarin

Piero Pavoni

Cantonetti Veronica

José Antonio Silicani

Francesco De Luca

Giovanni Alessandro Pertusio

Matteo Simone Almi

Use, as an anti-aging agent in polymer compounds, stilbene family compound of general formula (I): wherein the substitutes are selected from the following five combinations: a) R, Rand Rare OH; R, Rand Rare H; b) Rand Rare OCH; Rand Rare OH; Rand Rare H; c) Rand Rare OH; Rand Rare OC(CH); Rand Rare H; d) Rand Rare OCH; Rand Rare OH; Rand Rare C(CH); e) Rand Rare OC(CH); Rand Rare OH; Rand Rare H. 

Class of rubber product anti-aging agents

A compound for a tyre textile body ply skim. The compound has a cross-linkable, unsaturated-chain polymer base, a reinforcing filler composite, and a curing system having at least a curing agent and accelerants. The compound has 0.1 to 20 phr of a lignin derivative, 20 to 50 phr of a first carbon black with a surface area of 90 to 150 m/g, and 5 to 20 phr of a second carbon black with a surface area of 10 to 40 m/g.

Tyre body ply skim

A method of curing a compound having a cross-linkable, unsaturated-chain polymer base and a curing system; the method employing microwaves as a form of energy to promote curing reactions; and the curing system including compounds of general formula (I) ([RRRNR(NRRR)])y(n+1)X(I) where: X is an atom or anionic group; R, R, R, which are the same or different, are each CH, where m is 1 to 3, or CHCHCHor CHCHCH, R, R, R, which are the same or different, are each CHCHCHor CHCHCH; n is 0 or 1; y is 1 when n is 1; y is 1 or 2 when n is 0; Ris an aliphatic group C-Cwhen n is 0; is an aliphatic group C-Cwhen n is 1; when n is 0, at least one of R, R, R, Rhas a double bond.

Rubber compound microwave curing method

A method of producing colored tire portions, the method including: a step of forming a highly impermeable barrier layer; and a step of depositing a dye or colored layer on the barrier layer. The step of forming the barrier layer includes, in sequence, the operations of (a) depositing an aqueous dispersion on the part of the tire for coloring; (b) separating said aqueous dispersion into an aqueous phase and a solid phase; and (c) removing the aqueous phase.

Method of producing coloured tyre portions

Use of compounds of molecular formula (I) as curing activators of mixes having a cross-linkable unsaturated-chain polymer base: ([RRRNR(NRRR)n])y(n+1)X(I); where: X is an anionic atom or group; R, Rand R, which may be the same or different, are each CH, where m ranges between 1 and 3, or CHCHCHor CHCHCH; R, Rand R, which may be the same or different, are each CHCHCHor CHCHCH; n is 0 or 1; y is 1 when n is 1; y is 1 or 2 when n is 0; Ris an aliphatic group C-Cwhen n is 0; and is an aliphatic group C-Cwhen n is 1; when n is 0, at least one of R, R, Rand Rcomprises a double bond.

Curing activators

A water-based cement for producing tires, having water as solvent, cross-linkable unsaturated-chain polymer base, of sulphur, reinforcing filler, zinc oxide, accelerators, and an emulsifier of the general formula (I)[RRRNR(N(R))](n+1)X&#x2003;&#x2003;(I)

Water-based cement for producing tyres

A water-based cement for producing tyres includes 5 to 80% by weight of water, 10 to 60% by weight of a cross-linkable unsaturated-chain polymer base, 1 to 15% by weight of emulsifiers, and a quantity of metal oxide depending on the desired degree of adhesion.

Growing community of inventors

Rome, Italy

Salvatore Cotugno