{
  "$type": "site.standard.document",
  "description": "Provided is a tire with excellent overall performance in terms of abrasion resistance, wet grip performance, and bleed resistance. The present invention relates to a tire which includes a tread including a rubber composition that contains a rubber component and a branched conjugated diene polymer…",
  "path": "/patents/1391773",
  "publishedAt": "2025-06-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C1/00",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "Provided is a tire with excellent overall performance in terms of abrasion resistance, wet grip performance, and bleed resistance. The present invention relates to a tire which includes a tread including a rubber composition that contains a rubber component and a branched conjugated diene polymer, wherein the branched conjugated diene polymer is a copolymer at least containing a branched conjugated diene, butadiene, and styrene as structural units, and the tire satisfies the following relationships (1) and (2): Relationship (1): 0.25 < A ≤ 1.50; and Relationship (2): A × S ≤ 27.0, wherein A is defined by A = 42.9/√α + 0.14 wherein α represents the weight average molecular weight of the branched conjugated diene polymer; and S represents the groove area ratio (%) of the ground contact surface of the tread.",
  "title": "TIRE"
}