Method for reducing the dynamic drag of a turbulent aqueous stream

{
  "publication_number": "US3720216A",
  "country": "US",
  "kind": "A",
  "title": "Method for reducing the dynamic drag of a turbulent aqueous stream",
  "abstract": "A method for reducing the dynamic drag of a turbulent aqueous stream which comprises contacting said aqueous stream with a solid mass of finely divided material containing an ethylene oxide polymer and a water-soluble organic or inorganic material.",
  "claims": [
    "1. A method for reducing the dynamic drag of a turbulent aqueous stream which comprises contacting said aqueous stream with a solid mass of finely divided material containing an ethylene oxide polymer having an average molecular weight greater than 1 X 106 and a water-soluble organic or inorganic material.",
    "2. A method according to claim 1 wherein said ethylene oxide polymer is present in said solid mass of material in an amount within the range of about 10 to about 90 percent by weight based on the weight of the solid mass of material.",
    "3. A method according to claim 1 wherein said ethylene oxide polymer is present in said solid mass of material in an amount within the range of about 15 to about 60 percent by weight based on the weight of the solid mass of material.",
    "4. A method according to claim 1 wherein said ethylene oxide polymer is poly(ethylene oxide).",
    "5. A method according to claim 1 wherein said water-soluble material is an ethylene oxide polymer of less than 20,000 molecular weight.",
    "6. A method according to claim 1 wherein said water-soluble material is potassium carbonate.",
    "7. A method according to claim 1 wherein said water-soluble material is confectioners sugar.",
    "8. A method according to claim 1 wherein said solid mass of finely divided material includes a binder.",
    "9. A method according to claim 8 wherein said binder is starch.",
    "10. A method according to claim 1 wherein said solid mass of finely divided material is in the form of tablets.",
    "11. A method for reducing the dynamic drag of a turbulent aqueous stream which comprises contacting said aqueous stream with a solid, inert mass of finely divided material containing poly(ethylene oxide) having an average molecular weight greater than 1 X 106, and a water-soluble organic or inorganic material having a greater rate of water solubility than said poly(ethylene oxide).",
    "12. A method according to claim 11 wherein said poly(ethylene oxide) is present in said solid mass of material in an amount within the range of about 10 to about 90 percent by weight based on the weight of the solid mass of material.",
    "13. A method according to claim 11, wherein said poly(ethylene oxide) is present in said solid mass of material in an amount within the range of about 15 to about 60 percent by weight based upon the weight of the solid mass of material.",
    "14. A method according to claim 12 wherein said water-soluble material is an ethylene oxide polymer of less than 20,000 molecular weight.",
    "15. A method according to claim 12 wherein said water-soluble material is starch."
  ],
  "cpc": [
    "C09K 3/00",
    "Y10T 137/0391"
  ],
  "assignees": [
    "UNION CARBIDE CORP"
  ],
  "filing_date": "1971-09-27",
  "publication_date": "1973-03-13",
  "grant_date": "1973-03-13",
  "priority_date": "1971-09-27",
  "application_number": "US-3720216D-A",
  "family_id": "22676120",
  "citations": [
    "US3368004A",
    "US3520313A"
  ]
}