{
  "$type": "site.standard.document",
  "description": "The present invention is directed to a rubber composition comprising at least one diene based rubber; a sulfur donor; a sulfenamide accelerator; and a dithiophosphate of the formula wherein Q is divalent Zn or S, and Rmay be identical or different, and Ris hydrogen or a monovalent hydrocarbon group…",
  "path": "/patents/1003678",
  "publishedAt": "2012-04-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C1/0016",
    "GOODYEAR TIRE & RUBBER [US]"
  ],
  "textContent": "The present invention is directed to a rubber composition comprising at least one diene based rubber; a sulfur donor; a sulfenamide accelerator; and a dithiophosphate of the formula wherein Q is divalent Zn or S, and Rmay be identical or different, and Ris hydrogen or a monovalent hydrocarbon group of 1 to 18 carbon atoms; and wherein the zinc content of the rubber composition is less than 0.5 parts by weight, per 100 parts by weight of elastomer (phr) as Zn metal. [0002] The rubber composition may be used in a tread of a tire.",
  "title": "Rubber composition and pneumatic tire with tread"
}