{
  "$type": "site.standard.document",
  "description": "A porous membrane that simultaneously achieves excellent electric performance and excellent mechanical strength, and has skin layers on the opposite sides thereof, the skin layers having same pore characteristics, and a method for manufacturing the same are provided. A porous membrane contains a…",
  "path": "/patents/978628",
  "publishedAt": "2014-02-12T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B01D67/0027",
    "SCOPE CORP W [JP]"
  ],
  "textContent": "A porous membrane that simultaneously achieves excellent electric performance and excellent mechanical strength, and has skin layers on the opposite sides thereof, the skin layers having same pore characteristics, and a method for manufacturing the same are provided. A porous membrane contains a polyethylene resin having a weight-average molecular weight of no less than 300,000 and less than 500,000, micro pores are oriented in a multilayered structure, pores of sizes that are relatively larger than those of pores in each of skin layers on the opposite sides are distributed in a core layer and skin layers on the opposite sides have same pore characteristics. A porous membrane manufacturing method includes: a process of obtaining a mixture of a liquid-type paraffin wax and a solid-type paraffin wax; a process of adding the wax mixture into a polyethylene resin; and a process of immersing the resulting resin mixture into an organic solvent to extract the wax mixture.",
  "title": "METHOD FOR MANUFACTURING A POROUS MEMBRANE"
}