{
  "$type": "site.standard.document",
  "description": "A method of production of conjugated diene rubber comprising a first step of polymerizing a compound represented by a following formula (1) by using a polymerization initiator to obtain a polymer block of the compound represented by the formula (1) having an active end, and a second step of…",
  "path": "/patents/931013",
  "publishedAt": "2017-02-08T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C1/00",
    "ZEON CORP [JP]"
  ],
  "textContent": "A method of production of conjugated diene rubber comprising a first step of polymerizing a compound represented by a following formula (1) by using a polymerization initiator to obtain a polymer block of the compound represented by the formula (1) having an active end, and a second step of polymerizing a monomer containing at least a conjugated diene compound by using the active end of the polymer block: wherein, in the formula (1), R 1 is a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms, R 2 is a hydrocarbon group having 3 to 20 carbon atoms and containing a ring structure, each of R 3 and R 4 independently is a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms which is substitueted or unsubstitueted, and X is arbitrary monovalent group.",
  "title": "PRODUCTION METHOD FOR CONJUGATED DIENE RUBBER"
}