{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "Provided are tires that are excellent in tire properties such as fuel economy, abrasion resistance, wet grip performance, snow and ice performance, fracture resistance, and flex crack growth resistance. Included is a heavy duty tire including a tread formed from a rubber composition, the rubber…",
  "path": "/patents/1427734",
  "publishedAt": "2022-06-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C1/0016",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "Provided are tires that are excellent in tire properties such as fuel economy, abrasion resistance, wet grip performance, snow and ice performance, fracture resistance, and flex crack growth resistance. Included is a heavy duty tire including a tread formed from a rubber composition, the rubber composition containing: a natural rubber derived from Taraxacum kok-saghyz having a weight average molecular weight (Mw) of 5,000,000 or more and including polymers having a radius of gyration (Rz) of 130 nm or larger, wherein the Mw and Rz values are measured by FFF-MALS; and carbon black, the rubber composition containing, based on 100% by mass of a rubber component therein, 1% by mass or more of the natural rubber derived from Taraxacum kok-saghyz, the rubber composition containing, per 100 parts by mass of the rubber component, 30 parts by mass or more of the carbon black.",
  "title": "TIRES"
}