Michelin Recherche Et Technique S.a.

Compagnie Generale Des Etablissements Michelin

Michelin Recherche Et Techniques S.a.

Compagnie Generale Des Etablissements

Societe Detechnologie Michelin

Societe De Technologie Michelin S.a.

José Carlos Araujo Da Silva

Nicolas Seeboth

Jean-Michel Favrot

Jose Merino Lopez

Stéphanie Cambon

Pierre Robert

Sébastien Sterin

José Merino Lopez

Anne Veyland

Karine Longchambon

Laure Belin

Anne Frédérique Salit

Justin Belz

Arnaud Remy

Vincent Hunault

Bozena Voge

Rachid Matmour

Brigitte Marie Chauvin

Sergey Ivanov

Christiane Blanchard

Stéphanie De Landtsheer

Sylvie Gandon-Pain

Geraldine Laffargue

Christelle Darnaud

Nathalie Simon

Mathilde Abad

Catherine Mougin

Aurélie Triguel

Guillaume Hennebert

Pierre-Antoine Niore

Aurore Crochet

Nathalie Binde

Frédéric Lemerle

Process for the manufacture of an elastomer composition having a self-sealing property which is based on at least (phr meaning parts by weight per 100 parts of solid elastomer): a solid unsaturated diene elastomer; between 30 and 90 phr of a hydrocarbon resin; from 0 to less than 30 phr of filler; between 0.5 and 15 phr of thiuram polysulphide, in which, during a first stage or stage (a), a masterbatch comprising at least the solid unsaturated diene elastomer and between 30 and 90 phr of a hydrocarbon resin is prepared by mixing these various components in a mixer at a 'hot compounding' temperature or up to a 'hot compounding' temperature which is greater than the softening temperature of the hydrocarbon resin.

Method for manufacturing an elastomeric composition having a self-sealing property

A reinforced rubber composition based at least on an elastomeric matrix comprising natural rubber, on a reinforcing filler and on a polyaldimine compound of general formula (I), in which the R, Rand A elements are variable groups. This composition is intended in particular for the manufacture of semi-finished products for tires.

Composition based on natural rubber and on a polyaldimine compound

The invention relates to a tire rubber composition based on at least one diene elastomer, an inorganic filler as reinforcing filler, a coupling agent providing the bonding between the inorganic filler and the diene elastomer, characterized in that the coupling agent is an azosilane compound of following formula (I):(G)(G)Si&#x2014;Z&#x2014;NH&#x2014;C(O)&#x2014;N&#x2550;N&#x2014;C(O)&#x2014;NH&#x2014;Z&#x2014;Si(G)(G)&#x2003;&#x2003;(I)in which:

Rubber tire composition comprising an azo-silane coupling agent

Reinforced rubber composition based on, exhibiting a lesser hysteresis degradation over time, based on at least (a) an elastomeric matrix predominantly based on natural rubber, (b) a reinforcing filler and (c) a specific polyimine compound in a content of between 6 and 20 mmol per 100 g of elastomer. This rubber composition is intended, for example, for the manufacture of a semi-finished rubber product intended for the tyres of motor vehicles.

Composition based on natural rubber and a polyimine compound

The present invention relates to a modified polymer obtained by grafting a compound comprising at least one group Q, and at least one group A bonded together by at least, and preferably, one 'spacer' group Sp in which:

Graft polymer to which combined nitrogen molecules are grafted

The present invention relates to a modified polymer obtained by grafting of a compound comprising at least one group Q and at least one group A, bonded together by at least, and preferably, one 'spacer' group Sp in which:

The invention relates to a tire comprising at least one rubber composition based on at least one diene elastomer, one reinforcing filler, one chemical crosslinking agent and one modifying agent, chosen from the compounds of following formula (I): 

Tire and rubber composition containing a grafted polymer

A rubber composition for the manufacture of tires, based on one or more diene elastomers, on one or more reinforcing fillers and on a vulcanization system, characterized in that the said vulcanization system comprises one or more thiadiazole compounds of formula: 

Rubber composition comprising a thiadiazole

A rubber composition which can be used in particular in tires, based on at least one diene elastomer, one reinforcing filler, one crosslinking system, one phenolic resin and one polyaldehyde. The use of a polyaldehyde makes it possible to advantageously replace conventional methylene donors while preventing the production of formaldehyde during the vulcanization of the rubber compositions and thus to limit the environmental impact of these compounds. Furthermore, these polyaldehyde compounds make it possible not only to obtain rubber compositions exhibiting the same low-strain stiffness as conventional rubber compositions using HMT or H3M methylene donors but also, surprisingly, to greatly improve the fatigue strength of the rubber compositions and thus the endurance of the tires.

Rubber composition including a phenolic resin

A rubber composition for the manufacture of tires, based on a blend of at least one diene elastomer chosen from natural rubber and synthetic polyisoprene and of one or more diene elastomers chosen from the group consisting of polybutadienes, butadiene copolymers and isoprene copolymers, on one or more reinforcing fillers and on a vulcanization system, the said vulcanization system comprising one or more thiazoline compounds of formula: 

Rubber composition comprising a thiazoline

Tyre and rubber composition for tyre, based on at least one isoprene elastomer (for example natural rubber), an inorganic filler as reinforcing filler (for example silica) and a coupling system which provides the bonding between the said reinforcing inorganic filler and the isoprene elastomer, the said coupling system comprising, in combination:

Rubber composition for tire comprising an organosilicon coupling system

Reinforced rubber composition, exhibiting improved hysteresis, based on at least (a) an elastomeric matrix predominantly based on natural rubber, (b) a reinforcing filler and (c) a specific polyimine compound in a small proportion, preferably ranging from 1 to 5 mmol per 100 g of elastomer. This rubber composition is intended, for example, for the manufacture of a semi-finished rubber product intended for the tires of motor vehicles.

Composition made from natural rubber and a polyimine compound

The invention relates to a rubber composition that is free of zinc or that contains less than 0.5 phr of zinc, which can be used for the manufacture of tires, based on at least:

Rubber composition comprising a blocked mercaptosilane coupling agent

An organosilane of general formula I below: (HO)RSi&#x2014;Z&#x2014;S&#x2014;Rin which: R, which are identical or different, each represent a monovalent hydrocarbon-based group chosen from alkyls, which are linear or branched, cycloalkyls or aryls, having from 1 to 18 carbon atoms; Rrepresents a monovalent hydrocarbon-based group chosen from alkyls, which are linear or branched, cycloalkyls or aryls, having from 1 to 30 carbon atoms; Z represents a divalent bonding group comprising from 1 to 18 carbon atoms; and m is a number greater than or equal to 2.

Organosilane coupling agent

A rubber composition that can be used for the manufacture of tires, based on at least one diene elastomer; one sulphur-based crosslinking system; one inorganic filler as reinforcing filler; one coupling agent of general formula I below: (HO)RSi&#x2014;Z&#x2014;S&#x2014;Rwherein in which: R, which are identical or different, each represent a monovalent hydrocarbon-based group chosen from alkyls, which are linear or branched, cycloalkyls or aryls, having from 1 to 18 carbon atoms; Rrepresents a monovalent hydrocarbon-based group chosen from alkyls, which are linear or branched, cycloalkyls or aryls, having from 1 to 30 carbon atoms; Z represents a divalent bonding group comprising from 1 to 18 carbon atoms; n is an integer equal to 0, 1 or 2; and m is a number greater than or equal to 2.

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Pont du Chateau, France

José Carlos Araujo Da Silva