{
  "$type": "site.standard.document",
  "description": "A method for producing a modified conjugated diene-based polymer includes a polymerization step of polymerizing a monomer including a conjugated diene compound in the presence of an alkali metal compound or an alkali earth metal compound to obtain a polymer having an active terminal; a modification…",
  "path": "/patents/1406699",
  "publishedAt": "2025-08-13T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C1/0016",
    "JSR CORP [JP]"
  ],
  "textContent": "A method for producing a modified conjugated diene-based polymer includes a polymerization step of polymerizing a monomer including a conjugated diene compound in the presence of an alkali metal compound or an alkali earth metal compound to obtain a polymer having an active terminal; a modification step of reacting the polymer having an active terminal with a compound [M] having a plurality of hydrocarbyloxysilyl groups to obtain a modified polymer; and a mixing step of mixing the modified polymer with at least one compound [C] selected from the group consisting of a compound [N] having one hydrocarbyloxysilyl group and an alcohol having 6 to 20 carbon atoms.",
  "title": "METHOD FOR PRODUCING MODIFIED CONJUGATED-DIENE-BASED POLYMER, POLYMER COMPOSITION, CROSSLINKED OBJECT, AND TIRE"
}