Compagnie Generale Des Etablissements Michelin

Cedric Loubat

Anne-Lise Thuilliez

Odile Gavard-Lonchay

Gilles Boutevin

Quentin Crouzet

David Doisneau

François Jean-Baptiste-Dit-Dominique

Adeline Jasselin

Camille Chatard

A rubber composition contains: an elastomer matrix comprising at least one diene elastomer comprising epoxide functions, at least one reinforcing filler, and a system for crosslinking the polymer, comprising at least one organopolyphosphorus compound of general formula (I) in which A represents a covalent bond or a hydrocarbon group comprising at least 1 carbon atom, which is optionally substituted and which optionally comprises one or more heteroatoms, and the Rs represent, independently of one another, a hydrocarbon group comprising at least 1 carbon atom or a hydrogen atom.

Rubber compositions comprising an epoxide diene elastomer and a cross-linking system

A rubber composition comprises at least one phenol-aldehyde resin based: on at least one derivative of an aromatic polyphenol comprising at least one aromatic ring bearing at least two &#x2014;O&#x2014;Z groups in the meta position relative to one another, the two positions ortho to at least one of the &#x2014;O&#x2014;Z groups being unsubstituted, Z being other than hydrogen, and on at least one aldehyde.

High-strength rubber composition comprising an aromatic polyphenol derivative

An aromatic polyphenol derivative which comprises at least one aromatic ring bearing at least two &#x2014;O&#x2014;Z groups in the meta position relative to one another, the two positions ortho to at least one of the &#x2014;O&#x2014;Z groups being unsubstituted, is used for the manufacture of a phenol-aldehyde resin for reinforcing a rubber composition. Each &#x2014;O&#x2014;Z group represents an &#x2014;O&#x2014;((C&#x2550;O)(R)) group with Rrepresenting a hydrocarbon-based radical or a substituted hydrocarbon-based radical.

Use of an esterified aromatic polyphenol derivative for the production of a phenol-aldehyde resin for reinforcement of a rubber composition

A rubber composition comprises at least one phenol-aldehyde resin based on: at least one aromatic polyphenol comprising at least one aromatic ring bearing at least two &#x2014;O&#x2014;H groups in the meta position relative to one another, the two positions ortho to at least one of the &#x2014;O&#x2014;H groups being unsubstituted; and at least one aldehyde of formula W: wherein each Arand Argroup represents, independently of one another, an optionally substituted aromatic ring; and wherein SP is a connecting group that connects at least the Arand Argroups to one another, SP separating the Arand Argroups by at least 2 covalent bonds.

Rubber composition with a high level of fluidity based on an aromatic aldehyde and an aromatic polyphenol

An aromatic polyphenol derivative comprising at least one aromatic ring bearing at least two &#x2014;O&#x2014;Z groups in the meta position relative to one another, the two positions ortho to at least one of the &#x2014;O&#x2014;Z groups being unsubstituted, is used for the manufacture of a phenol-aldehyde resin for reinforcing a rubber composition. Each &#x2014;O&#x2014;Z group represents an &#x2014;O&#x2014;Si(RRR) group with R, R, Rrepresenting, independently of one another, a hydrocarbon-based radical or a substituted hydrocarbon-based radical.

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Castries, France

Cedric Loubat