TYRE TREAD CONTAINING PRECIPITATED SILICA AND HAVING IMPROVED WEAR RESISTANCE

• Main Author: VASSEUR, DIDIER
• Format: Patent
• Language: English; French
• Published: 12.12.2006
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DEVICES OR ARRANGEMENTS RELATED TO TYRES; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TYRE CHANGING OR REPAIRING; TYRE INFLATION; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; VEHICLE TYRES; VEHICLES IN GENERAL

Enveloppe de pneumatique à carcasse radiale comportant une bande de roulemen t, deux bourrelets inextensibles, deux flancs reliant les bourrelets à la bande de roulement et une armature de sommet située entre la carcasse et la bande de roulement, l'armature de sommet comportant une gomme élastomérique diénique comprenant à titre de charge renforçante une silice précipitée hautement dispersible poss édant une surface spécifique CTAB à 125 m2/g, une surface spécifique BET à 125 m2/ g. A pneumatic tyre casing with a radial carcase comprises a tread, two inextensible flanges, two sides connecting the flanges to the tread, and a top reinforcement between the carcase and the tread, comprising at least two sheets of twisted fabric, with the reinforcement including a diene elastomer rubber contg. as reinforcement a pptd. SiO2 with CTAB specific surface not above 125 m /g and BET specific surface not above 125 m /g.