{
  "$type": "site.standard.document",
  "description": "A method for producing a polybenzimidazole precursor polyamide including a repeating unit represented by the following formula (2): wherein Ris —SO—, —O—, —CO—, an alkylene group optionally containing a substituent, or a group represented by the following formula: two Xs are each individually a…",
  "path": "/patents/1324499",
  "publishedAt": "2022-08-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C08G73/18",
    "DAIKIN INDUSTRIES, LTD."
  ],
  "textContent": "A method for producing a polybenzimidazole precursor polyamide including a repeating unit represented by the following formula (2): wherein Ris —SO—, —O—, —CO—, an alkylene group optionally containing a substituent, or a group represented by the following formula: two Xs are each individually a monovalent organic group; and Ris a divalent organic group, the method including: a step (1-1) of polymerizing a tetramine compound (3) and a dicarboxylic acid derivative compound (4) as defined herein to provide the polybenzimidazole precursor polyamide.",
  "title": "POLYBENZIMIDAZOLE, PRECURSOR POLYAMIDE THEREOF, AND METHOD FOR PRODUCING SAME"
}