{
  "$type": "site.standard.document",
  "description": "Provided is a tire having excellent rolling resistance and improved pass-by noise performance. A tire comprises a tread portion that includes a base rubber and a cap rubber located on an outer side of the base rubber in a tire radial direction, wherein a thickness of the base rubber in the tire…",
  "path": "/patents/1410993",
  "publishedAt": "2024-05-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/0008",
    "BRIDGESTONE CORP [JP]"
  ],
  "textContent": "Provided is a tire having excellent rolling resistance and improved pass-by noise performance. A tire comprises a tread portion that includes a base rubber and a cap rubber located on an outer side of the base rubber in a tire radial direction, wherein a thickness of the base rubber in the tire radial direction is 1 mm or more, 30 °C tanδ of the base rubber is 0.20 or less, and a ratio 0 °C tanδ/30 °C tanδ of 0 °C tanδ to 30 °C tanδ of the base rubber is 2.90 or more, where the 30 °C tanδ is tanδ at 10 Hz and 30 °C, and the 0 °C tanδ is tanδ at 10 Hz and 0 °C.",
  "title": "TIRE"
}