A vulcanizable rubber composition suitable for a tire tread, which provides a balance of rolling resistance, wet traction and grip on snow and ice, includes 60-100 phr of a solution-polymerized styrene butadiene rubber with a styrene content of 2-10 wt. % and a Tg of −95° C. to −75° C., 0-40 phr of a polybutadiene rubber, at least 100 phr of silica filler, at least 6 parts by weight per hundred parts of the silica filler (phf) of a blocked mercapto organosilane coupling agent, at least 40 phr of a hydrocarbon traction resin, at least of 5 phr of a substituted or unsubstituted phenol aldehyde tackifier resin, and a cure package including a sulfur-based curing agent, zinc oxide, and a cure accelerator.
TREAD COMPOSITION FOR ALL-SEASON TIRE
2025-05-22
Patent
Electronic Resource
English
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08C TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS , Behandlung oder chemische Modifizierung von Kautschuken / C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |