{
  "$type": "site.standard.document",
  "description": "A modified natural rubber has a branching degree of 0.40 to 0.70 and includes a linking structure represented by formula (C), the linking structure having been formed by allowing polyisoprene, having a structure represented by formula (A) and/or formula (B), to bind in the structure to an amino…",
  "path": "/patents/1293046",
  "publishedAt": "2021-06-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C08L15/00",
    "Toyo Tire Corporation"
  ],
  "textContent": "A modified natural rubber has a branching degree of 0.40 to 0.70 and includes a linking structure represented by formula (C), the linking structure having been formed by allowing polyisoprene, having a structure represented by formula (A) and/or formula (B), to bind in the structure to an amino compound having two or more primary amino groups: wherein X represents a hydrogen atom or a methyl group, and Ps, which may be the same or different from each other, represent a polyisoprene unit; W-(Q) (C) wherein W represents a residue obtained by removing amino end groups from the amino compound Q represents at least one selected from the group consisting of the following general formulae (Q-1) to (Q-4), and m represents 2 to 4; wherein *indicates binding to a carbon atom of a polyisoprene unit, and *indicates binding to a carbon atom of the residue represented by W.",
  "title": "MODIFIED NATURAL RUBBER, RUBBER COMPOSITION USING THE RUBBER, AND PNEUMATIC TIRE USING THE COMPOSITION"
}