{
  "$type": "site.standard.document",
  "description": "An object of the present invention is to provide a heavy duty tire having improved fuel efficiency, wet grip performance, abrasion resistance, chipping resistance, and tear resistance with good balance. The heavy duty comprises a carcass extending from a tread part through a sidewall part to a bead…",
  "path": "/patents/1311789",
  "publishedAt": "2022-03-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C15/0607",
    "Sumitomo Rubber Industries, Ltd."
  ],
  "textContent": "An object of the present invention is to provide a heavy duty tire having improved fuel efficiency, wet grip performance, abrasion resistance, chipping resistance, and tear resistance with good balance. The heavy duty comprises a carcass extending from a tread part through a sidewall part to a bead core of a bead part and a belt layer arranged outside in a tire radial direction of the carcass and inside of the tread part, wherein the tread has a cap rubber layer and a base rubber layer, the cap rubber layer comprises a predetermined rubber component and silica and the loss tangent tan δ of the base rubber layer is within a predetermined range.",
  "title": "HEAVY DUTY TIRE"
}