{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
      "$link": "bafkreidcsxlo32cgblzq7emqovuxpq2qdjxjks54guzkazef75kgsu3y2q"
    },
    "mimeType": "image/png",
    "size": 104171
  },
  "description": "Provided is a composite porous membrane that simultaneously provides excellent adhesion of a heat-resistant resin layer and a small rising range of air resistance. The composite porous membrane of the present invention is a composite porous membrane, wherein a porous membrane B comprising a…",
  "path": "/patents/988967",
  "publishedAt": "2013-07-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B32B27/08",
    "TORAY BATTERY SEPARATOR FILM [JP]"
  ],
  "textContent": "Provided is a composite porous membrane that simultaneously provides excellent adhesion of a heat-resistant resin layer and a small rising range of air resistance. The composite porous membrane of the present invention is a composite porous membrane, wherein a porous membrane B comprising a heat-resistant resin is laminated on the surface of a polypropylene resin of an outermost layer of a porous membrane A composed of at least one layer, wherein at least one of the outermost layers comprises the polypropylene resin. The composite porous membrane is characterized by satisfying a particular range of peeling strength at the interface between the porous membrane A and the porous membrane B and a particular range of difference between air resistance of the whole composite porous membrane and air resistance of the porous membrane A, provided that the porous membrane A satisfies a particular range of average pore size and porosity.",
  "title": "COMPOSITE POROUS FILM AND METHOD FOR PRODUCING SAME"
}