{
  "$type": "site.standard.document",
  "description": "The present invention provides a pneumatic radial tire, in which rolling resistance is reduced and durability is improved without losing toe-chip resistance when assembling the rim. More specifically, the present invention relates to a pneumatic radial tire having a chafer comprising a rubber…",
  "path": "/patents/1073652",
  "publishedAt": "2005-09-28T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C15/06",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "The present invention provides a pneumatic radial tire, in which rolling resistance is reduced and durability is improved without losing toe-chip resistance when assembling the rim. More specifically, the present invention relates to a pneumatic radial tire having a chafer comprising a rubber composition having complex modulus of 9 to 13 MPa measured under conditions of temperature of 70°C, frequency of 10 Hz and dynamic strain of ± 2 %, loss tangent of 0.08 to 0.11 and tensile elongation at break of at least 230 % measured according to JIS-K6251.",
  "title": "Pneumatic radial tire"
}