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.
КАУЧУКОВАЯ КОМПОЗИЦИЯ ДЛЯ ШИН И ПНЕВМАТИЧЕСКАЯ ШИНА
2018-09-28
Patent
Electronic Resource
Russian
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |