{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "In a tire 2, a shape index of a reference ground contact surface is not less than 1.20 and not greater than 1.50. In the tire 2, a tread 4 includes a cap layer 38, an intermediate layer 40 formed such that a loss tangent of the intermediate layer 40 at 30°C is less than a loss tangent of the cap…",
  "path": "/patents/1409024",
  "publishedAt": "2024-06-12T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/005",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "In a tire 2, a shape index of a reference ground contact surface is not less than 1.20 and not greater than 1.50. In the tire 2, a tread 4 includes a cap layer 38, an intermediate layer 40 formed such that a loss tangent of the intermediate layer 40 at 30°C is less than a loss tangent of the cap layer 38 at 30°C, and a base layer 42 formed such that a loss tangent of the base layer 42 at 30°C is less than the loss tangent of the intermediate layer 40 at 30°C. In the radial direction, the intermediate layer 40 is disposed outwardly of the base layer 42 and the cap layer 38 is disposed outwardly of the intermediate layer 40. In a shoulder land portion 28s of the tread 4, a thickness Tm of the cap layer 38 at a center Pm of an axial width is less than a thickness Tg of the cap layer 38 on the shoulder circumferential groove 26s side.",
  "title": "TIRE"
}