{
  "$type": "site.standard.document",
  "description": "A rubber composition contains a diene rubber component and a reinforcing filler, the diene rubber component containing a styrene-butadiene copolymer component including at least one type of styrene-butadiene copolymer and satisfying: the bonded styrene content is from 5 to 50 wt. %; of components…",
  "path": "/patents/1271030",
  "publishedAt": "2020-09-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C08L53/025",
    "The Yokohama Rubber Co., LTD."
  ],
  "textContent": "A rubber composition contains a diene rubber component and a reinforcing filler, the diene rubber component containing a styrene-butadiene copolymer component including at least one type of styrene-butadiene copolymer and satisfying: the bonded styrene content is from 5 to 50 wt. %; of components obtained by ozone decomposition, a content of a decomposed component V1 containing one 1,2-bonded butadiene-derived unit out of a total of 100 mol % of decomposed components containing styrene-derived unit(s) and/or the 1,2-bonded butadiene-derived unit(s) is not less than 25 mol %; of the components obtained by ozone decomposition, a content of a decomposed component S2V1 containing two of the styrene-derived units and one of the 1,2-bonded butadiene-derived unit out of a total of 100 mol % of the decomposed components containing the styrene-derived unit(s) and/or the 1,2-bonded butadiene-derived unit(s) is not less than 5 mol %; and a vinyl content of a butadiene moiety is not less than 50%.",
  "title": "Rubber Composition and Pneumatic Tire Using Same"
}