Process of reducing friction loss in flowing hydrocarbon liquids and compositions thereof

{
  "publication_number": "US3687148A",
  "country": "US",
  "kind": "A",
  "title": "Process of reducing friction loss in flowing hydrocarbon liquids and compositions thereof",
  "abstract": "The disclosure describes a method of reducing friction during turbulent flow of non-aqueous liquids through conduits by addition to the fluids of from 1 to 2,000 ppm of a novel block polymer comprising chains of a block polymer having the formula A-B wherein A is a high molecular weight polymer block soluble in the hydrocarbon liquid and B is a low molecular weight polymer block substantially less soluble in the fluid.",
  "claims": [
    "2. A process according to claim 1 wherein the transfer occurs in an essentially horizontal pipe.",
    "3. A process according to claim 1 wherein the transfer occurs in an essentially vertical pipe.",
    "4. A process according to claim 1 wherein the fluid is a hydrocarbon and the block B predominates in polymerized monovinyl arene units and the block A predominates in polymerized conjugated diene units.",
    "5. A process according to claim 1 wherein the fluid is a hydrocarbon and the block B comprises an alpha olefin homopolymer block and the block A comprises a copolymer block of at least two alpha olefins.",
    "6. A process according to claim 1 wherein the fluid is a hydrocarbon and the block A is a hydrogenated polyisoprene block and block B is a hydrogenated polybutadiene block.",
    "7. A process according to claim 1 wherein the fluid is a hydrocarbon and the block B is a polystyrene block and block A is a polybutadiene block.",
    "8. A process according to claim 1 wherein the block B is substantially insoluble in the non-aqueous liquid medium.",
    "9. A process according to claim 1 wherein block B is a polymaleic acid block and block A is a polybutadiene block.",
    "10. A process according to claim 1 wherein block B is a vinylpyridine block and block A is a polybutadiene block."
  ],
  "cpc": [
    "C10L 10/08",
    "B65G 53/30",
    "C09K 8/82",
    "C10L 1/146",
    "C10L 1/1633",
    "C10L 1/195",
    "C10L 1/236",
    "F17D 1/16",
    "Y10T 137/0391"
  ],
  "ipc": [
    "B65G 53/30",
    "C09K 8/82",
    "C10L 1/14",
    "C10L 1/16",
    "C10L 1/18",
    "C10L 1/22",
    "F17D 1/16"
  ],
  "inventors": [
    "Vitold Kruka",
    "Dale J Meier"
  ],
  "filing_date": "1971-06-25",
  "publication_date": "1972-08-29",
  "grant_date": "1972-08-29",
  "priority_date": "1971-06-25",
  "application_number": "US-3687148D-A",
  "family_id": "22561664",
  "cited_by_count": 18,
  "citations": [
    "US2492173A",
    "US3215154A",
    "US3238173A"
  ]
}