{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
      "$link": "bafkreifxooiruffld2byhwjngtozkl76rzhggkbaglhbm4xy355kbcafam"
    },
    "mimeType": "image/png",
    "size": 93186
  },
  "description": "An object of the present invention is to provide a rubber composition for tire which can improve initial grip performance and stable grip performance during running at a high level while maintaining sufficient abrasion resistance, and a pneumatic tire having a tread composed of this rubber…",
  "path": "/patents/925568",
  "publishedAt": "2017-06-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C1/00",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "An object of the present invention is to provide a rubber composition for tire which can improve initial grip performance and stable grip performance during running at a high level while maintaining sufficient abrasion resistance, and a pneumatic tire having a tread composed of this rubber composition for tire. The rubber composition for tire comprises 70 to 200 parts by mass of a filler and 60 to 250 parts by mass of a softener compounding 15 to 60 parts by mass of a predetermined tackifying resin with a softening point of not less than 110°C based on 100 parts by mass of a diene rubber component comprising not less than 20% by mass of a styrene-butadiene copolymer rubber a having a glass transition temperature of -35 to 15°C, a styrene content of 35 to 48% by mass and a vinyl unit quantity in the butadiene component of 35 to 55%.",
  "title": "RUBBER COMPOSITION FOR TIRE AND PNEUMATIC TIRE"
}