{
  "$type": "site.standard.document",
  "description": "A polybenzimidazole production method for producing the polybenzimidazole including a repeating unit represented by the following formula (1): wherein Ris —SO—, —O—, —CO—, an alkylene group optionally containing a substituent, or a group represented by the following formula (a): two Xs are each…",
  "path": "/patents/1342375",
  "publishedAt": "2023-04-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C08G73/18",
    "DAIKIN INDUSTRIES, LTD."
  ],
  "textContent": "A polybenzimidazole production method for producing the polybenzimidazole including a repeating unit represented by the following formula (1): wherein Ris —SO—, —O—, —CO—, an alkylene group optionally containing a substituent, or a group represented by the following formula (a): two Xs are each individually a hydrogen atom or a monovalent organic group; and Ris a divalent organic group, the production method including a step (1-1) of polymerizing a tetramine compound and a dicarboxylic acid derivative compound to provide a polybenzimidazole precursor polyamide, and a step (1-2) of dehydrocyclizing the polybenzimidazole precursor polyamide.",
  "title": "POLYBENZIMIDAZOLE, PRECURSOR POLYAMIDE THEREOF, AND METHOD FOR PRODUCING SAME"
}