{
  "$type": "site.standard.document",
  "description": "A tire includes a tread having two or more layers. Of two layers adjacent to each other in a tire radial direction in the tread, an outer rubber layer on an outer side in the tire radial direction is formed from an outer rubber layer rubber composition containing a rubber component containing 25%…",
  "path": "/patents/1417771",
  "publishedAt": "2022-11-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B32B25/042",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "A tire includes a tread having two or more layers. Of two layers adjacent to each other in a tire radial direction in the tread, an outer rubber layer on an outer side in the tire radial direction is formed from an outer rubber layer rubber composition containing a rubber component containing 25% by mass or more of an isoprene-based rubber and 25% by mass or more of a styrene-butadiene rubber, a silica having a nitrogen adsorption specific surface area of 200 m2/g or greater, sulfur, and a zinc-containing compound, and an inner rubber layer on an inner side in the tire radial direction is formed from an inner rubber layer rubber composition containing a rubber component and a zinc-containing compound. The tire satisfies the following formula (1).[Math. 1] amount of zinc element per100parts by mass of rubber component contained in outer rubber layer rubber composition",
  "title": "TIRE"
}