{
  "$type": "site.standard.document",
  "description": "A rubber composition comprising, based on parts by weight per 100 parts by weight of elastomer (phr), conjugated diene-based elastomers comprising 55 to 80 phr of a cis 1,4-polyisoprene rubber, and 20 to 45 phr of at least one additional conjugated diene-based elastomer comprising a cis…",
  "path": "/patents/940249",
  "publishedAt": "2016-07-20T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C1/0016",
    "GOODYEAR TIRE & RUBBER [US]"
  ],
  "textContent": "A rubber composition comprising, based on parts by weight per 100 parts by weight of elastomer (phr), conjugated diene-based elastomers comprising 55 to 80 phr of a cis 1,4-polyisoprene rubber, and 20 to 45 phr of at least one additional conjugated diene-based elastomer comprising a cis 1,4-polybutadiene rubber and an organic solution polymerization prepared styrene/butadiene rubber (S-SBR) having a bound styrene content in a range of from 12 to 20 percent is disclosed. The rubber composition further comprises 40 to 120 phr of a filler comprising a combination of carbon black and silica, wherein the filler comprises from 2 to 50 phr of carbon black and from 38 to 118 phr of silica and wherein the silica is or comprises a bimodal aggregate size configured silica with a monomodal pore size distribution. This rubber composition may be used in a tire tread.",
  "title": "RUBBER COMPOSITION AND TIRE WITH TREAD INTENDED FOR BOTH ON AND OFF-THE-ROAD SERVICE"
}