{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
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  "description": "Provided is a production method for a rubber composition for tires which improves the dispersibility of silica and by which a rubber composition for tires that has low fuel consumption performance, wet grip performance, wear resistance, and processability that are improved in a balanced manner is…",
  "path": "/patents/925575",
  "publishedAt": "2017-06-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C1/00",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "Provided is a production method for a rubber composition for tires which improves the dispersibility of silica and by which a rubber composition for tires that has low fuel consumption performance, wet grip performance, wear resistance, and processability that are improved in a balanced manner is obtained. The production method for the rubber composition for tires includes: a base kneading step of kneading a rubber component containing a butadiene rubber having a cis content of not less than 96% by mass and a Mooney viscosity ML 1+4 (100°C) of not less than 50, silica, a silane coupling agent, and a basic substance; and a finish kneading step of feeding a vulcanizing material to a kneaded product obtained in the base kneading step, and kneading the resultant mixture.",
  "title": "PRODUCTION METHOD FOR RUBBER COMPOSITION FOR TIRES"
}