{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "An object of the present disclosure is to provide a tire having improved overall performance of an initial grip performance and a peak grip performance on a dry road surface. Provided is a tire comprising a tread part, the tread part having two or more circumferential grooves extending continuously…",
  "path": "/patents/1400432",
  "publishedAt": "2024-07-31T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/0306",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "An object of the present disclosure is to provide a tire having improved overall performance of an initial grip performance and a peak grip performance on a dry road surface. Provided is a tire comprising a tread part, the tread part having two or more circumferential grooves extending continuously in a tire circumferential direction, a pair of shoulder land parts partitioned by the circumferential grooves and grounding ends, a center land part located between the pair of shoulder land parts, and a width direction groove, wherein a land ratio R on a grounding surface of the tread part is 0.50 to 0.80, wherein the tread part has at least one rubber layer consisting of a rubber composition comprising a rubber component, and wherein an average value tan δA of a loss tangent tan δ of the rubber composition at -15°C to 20°C, measured under a condition of a frequency of 10 Hz, an initial strain of 0.1%, and a dynamic strain amplitude of ± 0.25%, is 0.40 to 0.60.",
  "title": "TIRE"
}