{
  "$type": "site.standard.document",
  "description": "Provided is a tire with excellent wet performance. The tire includes a multilayer tread portion including a surface rubber layer and one or more inner rubber layers located inwardly of the surface rubber layer in a tire radial direction, the surface rubber layer and at least one of the one or more…",
  "path": "/patents/1386626",
  "publishedAt": "2026-01-28T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C1/0016",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "Provided is a tire with excellent wet performance. The tire includes a multilayer tread portion including a surface rubber layer and one or more inner rubber layers located inwardly of the surface rubber layer in a tire radial direction, the surface rubber layer and at least one of the one or more inner rubber layers each containing a lignin-based material, an amount Lc (parts by mass) of the lignin-based material per 100 parts by mass of a rubber component in the surface rubber layer being equal to or larger than an amount Lb (parts by mass) of the lignin-based material per 100 parts by mass of a rubber component in the lignin-based material-containing inner rubber layer.",
  "title": "TIRE"
}