{
  "$type": "site.standard.document",
  "description": "Provided is a tire with excellent durability during high-speed driving. A tire includes a cap tread and a band layer containing a polyethylene terephthalate fiber cord. The polyethylene terephthalate fiber cord in the band layer has a residual strain E in the band layer of 2.0% or higher. The…",
  "path": "/patents/1393405",
  "publishedAt": "2025-11-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C9/00",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "Provided is a tire with excellent durability during high-speed driving. A tire includes a cap tread and a band layer containing a polyethylene terephthalate fiber cord. The polyethylene terephthalate fiber cord in the band layer has a residual strain E in the band layer of 2.0% or higher. The polyethylene terephthalate fiber cord taken out of the band layer has a stress-strain curve at 100°C in which the slope d at the residual strain E in the band layer is 2.0 cN/(tex-%) or greater. The tire satisfies the following relationship (1): E×d/tanδt > 30 where E (%) is the residual strain as defined above, d (cN/(tex·%)) is the slope as defined above, and tanδt is the loss tangent of the cap tread measured at a temperature of 30°C, an initial strain of 10%, a dynamic strain of 1%, and a frequency of 10 Hz in extension mode.",
  "title": "TIRE"
}