{
  "$type": "site.standard.document",
  "description": "A carbon black is disclosed which can exert excellent abrasion resistance while suppressing heat generation when incorporated into a rubber composition. A carbon black in which the total number of active sites represented by a product of a full width at half maximum of a Raman scattering peak…",
  "path": "/patents/1320798",
  "publishedAt": "2022-06-23T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C09C1/50",
    "TOKAI CARBON CO., LTD."
  ],
  "textContent": "A carbon black is disclosed which can exert excellent abrasion resistance while suppressing heat generation when incorporated into a rubber composition. A carbon black in which the total number of active sites represented by a product of a full width at half maximum of a Raman scattering peak appearing in a range of 1340 to 1360 cmwhen an excitation wavelength is 532 nm and a specific surface area when nitrogen gas is adsorbed is 3.60×10to 8.20×10(cmm/g), and when a nuclear magnetic resonance signal of a spin-spin relaxation process observed by a solid echo method is represented by a sum of a first signal and a second signal having a time constant larger than that of the first signal, an amount of hydrogen represented by a signal intensity per unit mass at time 0 of the first signal is 50.0 to 250.0 (/g).",
  "title": "CARBON BLACK, METHOD FOR PRODUCING CARBON BLACK, AND RUBBER COMPOSITION"
}