Non-electrification polymeric composite material

{
  "publication_number": "US5106539A",
  "country": "US",
  "kind": "A",
  "title": "Non-electrification polymeric composite material",
  "abstract": "A non-electrification polymeric composite material composed of a tetrafluoroethylene/fluoro(alkyl vinyl ether) copolymer containing 4% by weight or more fluoro(alkyl vinyl ether) and an electrically conductive material. This non-electrification polymeric composite material is suitably used in a holder for holding a semiconductor substrate, or the like.",
  "claims": [
    "1. A non-electrification polymeric composite material, comprising a tetrafluoroethylene/fluoro(alkyl vinyl ether) copolymer containing 4 to 15% by weight of said fluoro(alkyl vinyl ether) and 1 to 15% by weight of a single electrically conductive material selected from the group consisting of carbon blacks, carbonaceous fiber, graphite, a metal and a metal oxide, said fluoro(alkyl vinyl ether) being represented by the formula ##STR3## wherein x is an integer from 0-4, y is an integer from 0-7, and Z is hydrogen or fluorine, and said tetrafluoroethylene/fluoro(alkyl vinyl ether) copolymer having a melt index of 20 g/10 min. to 50 g/10 min.",
    "2. A non-electrification polymeric composite material according to claim 1, wherein said tetrafluoroethylene/fluoro(alkyl vinyl ether) copolymer contains 4 to 10% by weight of said fluoro(alkyl vinyl ether).",
    "3. A non-electrification polymeric composite material according to claims 1, or 2, wherein said electrically conductive material is acetylene black.",
    "4. A non-electrification polymeric composite material according to claim 1, which contains 1 to 10% by weight of the electrically conductive material.",
    "5. A non-electrification polymeric composite material according to claim 1, wherein x is an integer from 0 to 2.",
    "6. A non-electrification polymeric composite material according to claim 1, wherein y is an integer from 0 to 3.",
    "7. A non-electrification polymeric composite material according to claim 1, wherein Z is fluorine.",
    "8. A non-electrification polymeric composite material according to claim 1 or 3, wherein said electrically conductive material is a white electrically conductive material of fibrous potassium titanate or titanium oxide covered with tin oxide and antimony oxide."
  ],
  "cpc": [
    "H01B 1/24",
    "C08K 3/04",
    "C08L 27/18",
    "H01B 1/20",
    "H01B 1/22",
    "Y10T 428/254"
  ],
  "assignees": [
    "DAIKIN IND LTD"
  ],
  "filing_date": "1989-08-16",
  "publication_date": "1992-04-21",
  "grant_date": "1992-04-21",
  "priority_date": "1988-08-29",
  "application_number": "US-39441789-A",
  "family_id": "16656776",
  "citations": [
    "EP0085413B1",
    "EP0197781A2",
    "EP0312077A1",
    "JPS58207651A",
    "US4664846A",
    "WO8807063A1"
  ]
}