{
  "$type": "site.standard.document",
  "description": "A method for producing a microporous membrane comprising the steps of: providing an ultrahigh molecular weight polyethylene (UHMWPE); providing a filler; providing a processing plasticizer; mixing UHMWPE, filler and the processing plasticizer together to form a mixture having a weight ratio of…",
  "path": "/patents/991436",
  "publishedAt": "2013-05-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B01D67/0027",
    "DARAMIC LLC [US]"
  ],
  "textContent": "A method for producing a microporous membrane comprising the steps of: providing an ultrahigh molecular weight polyethylene (UHMWPE); providing a filler; providing a processing plasticizer; mixing UHMWPE, filler and the processing plasticizer together to form a mixture having a weight ratio of filler to UHMWPE of from 1:9 to 15:1 by weight; extruding the mixture to form a sheet from the mixture; processing said sheet where processing is selected from the group consisting of: calendaring, casting or blowing; extracting all or part of the processing plasticizer from the sheet to produce a matrix comprising UHMWPE and the filler distributed throughout the matrix, to produce a microporous matrix sheet; and optionally calendaring the microporous matrix sheet to produce a microporous membrane.",
  "title": "A MICROPOROUS MATERIAL AND METHOD OF MAKING SAME"
}