{
  "$type": "site.standard.document",
  "description": "A heat resistant microporous membrane containing a thermoplastic resin having a crystalline melting point of 140-300 DEG C and having a layer structure formed in the direction of membrane thickness, said layer structure containing 5-100% of a layer defined by the following (A) and 95-0% of a layer…",
  "path": "/patents/1102587",
  "publishedAt": "2002-08-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B01D67/003",
    "ASAHI CHEMICAL IND [JP]"
  ],
  "textContent": "A heat resistant microporous membrane containing a thermoplastic resin having a crystalline melting point of 140-300 DEG C and having a layer structure formed in the direction of membrane thickness, said layer structure containing 5-100% of a layer defined by the following (A) and 95-0% of a layer defined by the following (B): (A) a layer in which the micropores are intra-spherulitic voids, and (B) a layer in which the micropores are intra-spherulitic voids and inter-spherulitic voids.",
  "title": "HEAT-RESISTANT MICROPOROUS FILM"
}