{
  "$type": "site.standard.document",
  "description": "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…",
  "path": "/patents/923626",
  "publishedAt": "2017-07-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C1/00",
    "YOKOHAMA RUBBER CO LTD [JP]"
  ],
  "textContent": "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.",
  "title": "TIRE RUBBER COMPOSITION AND PNEUMATIC TIRE"
}