{
  "$type": "site.standard.document",
  "description": "A tread 4 of a tire 2 includes a base layer 44, an intermediate layer 46 covering the base layer 44, and a cap layer 48 covering the intermediate layer 46. The cap layer 48 includes a tread surface T. A loss tangent at 30°C of the intermediate layer 46 is lower than a loss tangent at 30°C of the…",
  "path": "/patents/1401924",
  "publishedAt": "2024-07-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/0041",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "A tread 4 of a tire 2 includes a base layer 44, an intermediate layer 46 covering the base layer 44, and a cap layer 48 covering the intermediate layer 46. The cap layer 48 includes a tread surface T. A loss tangent at 30°C of the intermediate layer 46 is lower than a loss tangent at 30°C of the cap layer 48, and a loss tangent at 30°C of the base layer 44 is lower than the loss tangent at 30°C of the intermediate layer 46. In a reference ground-contact surface, a land portion 26 having a longest ground-contact length is a longest land portion 26w, and a land portion 26 having a shortest ground-contact length is a shortest land portion 26n. A ratio (TL/TS) of a thickness TL of the intermediate layer 46 in the longest land portion 26w to a thickness TS of the intermediate layer 46 in the shortest land portion 26n is greater than 1.0 and not greater than 3.5.",
  "title": "TIRE"
}