{
  "$type": "site.standard.document",
  "description": "The pneumatic tire comprises a carcass 6, and a pair of bead portions 4 each with a bead core 5 and a bead apex 8. The carcass 6 comprises a carcass ply 6A having a pair of turned-up portions 6b and a main portion 6a therebetween. At least one of the bead portions 4 is provided with a bead…",
  "path": "/patents/1388965",
  "publishedAt": "2025-06-18T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C15/04",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "The pneumatic tire comprises a carcass 6, and a pair of bead portions 4 each with a bead core 5 and a bead apex 8. The carcass 6 comprises a carcass ply 6A having a pair of turned-up portions 6b and a main portion 6a therebetween. At least one of the bead portions 4 is provided with a bead reinforcing rubber 10 disposed on the axially outside of the turned-up portion 6b. The bead reinforcing rubber 10 comprises an axially outer first reinforcing rubber layer 11 and an axially inner second reinforcing rubber layer 12. The complex elastic modulus E*2 of the second reinforcing rubber layer 12 is smaller than the complex elastic modulus E*1 of the first reinforcing rubber layer 11.",
  "title": "PNEUMATIC TIRE"
}