{
  "$type": "site.standard.document",
  "description": "Provided is a rubber composition including: per 100 parts by mass of a diene rubber containing a natural rubber and from 10 to 30 mass % of a butadiene rubber, from 50 to 100 parts by mass of a filler containing not less than 20 mass % of carbon black, oil, sulfur (S), and a vulcanization…",
  "path": "/patents/1294353",
  "publishedAt": "2021-07-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C08L9/06",
    "The Yokohama Rubber Co., LTD."
  ],
  "textContent": "Provided is a rubber composition including: per 100 parts by mass of a diene rubber containing a natural rubber and from 10 to 30 mass % of a butadiene rubber, from 50 to 100 parts by mass of a filler containing not less than 20 mass % of carbon black, oil, sulfur (S), and a vulcanization accelerator (A), a mass ratio of the natural rubber to the butadiene rubber (NR/BR) being 0.3 or greater, a compounded ratio of the sulfur to the vulcanization accelerator (S/A) being 0.8 or less, and a total amount of an oil component in the rubber composition containing the oil being from 15 to 25 parts by mass.",
  "title": "Rubber Composition for a Tire Tread"
}