{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
      "$link": "bafkreiahisajy2k67w4c6dw3zeolhvc4q54pdnhezainmsst6hdjxmjoei"
    },
    "mimeType": "image/png",
    "size": 86979
  },
  "description": "The present disclosure provides a rubber composition and a tire which provide improved overall performance in terms of wet performance and dry performance. The present disclosure relates to a rubber composition, containing at least one polybutadiene rubber and/or at least one styrene-butadiene…",
  "path": "/patents/1413178",
  "publishedAt": "2025-06-18T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C1/00",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "The present disclosure provides a rubber composition and a tire which provide improved overall performance in terms of wet performance and dry performance. The present disclosure relates to a rubber composition, containing at least one polybutadiene rubber and/or at least one styrene-butadiene rubber, having a complex modulus E* that reversibly changes with water, and satisfying the following relationships 1) to 3): 1) Complex modulus E* when water-wet/Complex modulus E* before water-wet × 100 ≤ 98 wherein E* represents the E* at 23°C of the rubber composition; 2) 99 ≤ Complex modulus E* after water-wet and dehydrated/Complex modulus E* before water-wet × 100 ≤ 100 wherein E* represents the E* at 23°C of the rubber composition; 3) 99 ≤ Volume when water-wet/Volume before water-wet × 100 ≤ 100 wherein Volume represents the volume at 23°C of the rubber composition.",
  "title": "RUBBER COMPOSITION AND TIRE"
}