{
  "$type": "site.standard.document",
  "description": "Provided is a pneumatic tire capable of improving fuel efficiency, handling stability, and durability in a balanced manner. The present invention relates to a pneumatic tire, comprising a tread that includes a cap layer and a base layer, the cap layer and the base layer satisfying relationships…",
  "path": "/patents/978328",
  "publishedAt": "2014-02-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C1/0016",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "Provided is a pneumatic tire capable of improving fuel efficiency, handling stability, and durability in a balanced manner. The present invention relates to a pneumatic tire, comprising a tread that includes a cap layer and a base layer, the cap layer and the base layer satisfying relationships represented by the following formulas (1) to (3): wherein Vc is the volume of the cap layer and Vb is the volume of the base layer, and wherein E*c and tan δc are the complex modulus and the loss tangent, respectively, of the cap layer at 30°C, and E*b and tan δb are the complex modulus and the loss tangent, respectively, of the base layer at 30°C.",
  "title": "PNEUMATIC TIRE"
}