{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "A low rolling resistance tire (1) for vehicles is described which comprises at least one belt layer (7) coaxially extending around at least one carcass ply (3), a composite tread (10) coaxially extending around the belt layer (7) and comprising a radially outer layer (12) an a radially inner layer…",
  "path": "/patents/1113314",
  "publishedAt": "2001-05-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C1/0016",
    "PIRELLI [IT]"
  ],
  "textContent": "A low rolling resistance tire (1) for vehicles is described which comprises at least one belt layer (7) coaxially extending around at least one carcass ply (3), a composite tread (10) coaxially extending around the belt layer (7) and comprising a radially outer layer (12) an a radially inner layer (11), wherein the ratio between the modulus of elasticity E' at 70 DEG C of the radially inner layer (11) and the modulus of elasticity E' at 70 DEG C of the radially outer layer (12) is comprised between 1.1 and 3, and the ratio between the value of tang delta at 70 DEG C of the radially inner layer (11) and the value of tang delta at 70 DEG C of the radially outer layer (12) is lower than 0.8. Advantageously, the tire (1) achieves a better compromise between the characteristics of rolling resistance, handling and comfort with respect to what is obtainable from known tires for the same type of use.",
  "title": "Low rolling resistance tire for vehicles"
}