{
  "$type": "site.standard.document",
  "description": "The present invention provides a rubber composition containing a rubber component that contains a diene rubber, the diene rubber containing a polymer (A) that has a urethane backbone and a diene backbone in one molecule. The rubber composition has excellent fracture resistance, in particular, crack…",
  "path": "/patents/1417200",
  "publishedAt": "2026-06-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C1/00",
    "BRIDGESTONE CORP [JP]"
  ],
  "textContent": "The present invention provides a rubber composition containing a rubber component that contains a diene rubber, the diene rubber containing a polymer (A) that has a urethane backbone and a diene backbone in one molecule. The rubber composition has excellent fracture resistance, in particular, crack growth resistance.",
  "title": "RUBBER COMPOSITION AND TIRE IN WHICH SAME IS USED"
}