To provide a rubber composition for tires exhibiting excellent wet performance and performance on icy and snowy roads when a tire is produced, and a pneumatic tire including the rubber composition for tires. The rubber composition for tires of the present invention contains a diene rubber, silica, and a predetermined alkyltrialkoxysilane; the diene rubber containing a butadiene rubber and a particular conjugated diene rubber, a content of the butadiene rubber in the diene rubber being 20 mass% or greater and a content of the particular conjugated diene rubber in the diene rubber being from 30 to 80 mass%; an average glass transition temperature of the diene rubber being from -65 to -45°C; the particular conjugated diene rubber being a conjugated diene rubber produced by a particular production method and having predetermined ranges of aromatic vinyl unit content, vinyl bond content, and weight average molecular weight.
TIRE RUBBER COMPOSITION AND PNEUMATIC TIRE
REIFENKAUTSCHUKZUSAMMENSETZUNG UND LUFTREIFEN
COMPOSITION DE CAOUTCHOUC POUR PNEUMATIQUE ET PNEUMATIQUE
11.03.2020
Patent
Elektronische Ressource
Englisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / 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 / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |