Fire extinguishing compositions

{
  "publication_number": "US5055208A",
  "country": "US",
  "kind": "A",
  "title": "Fire extinguishing compositions",
  "abstract": "Fire-extinguishing compositions of low ozone depletion potential comprise dry powder extinguishing agents and bromodichloromethane or dichlorotrifluoroethane.",
  "claims": [
    "1. In a non-aqueous fire-extinguishing composition which consists essentially of; a dry powder fire-extinguishing agent dispersed in an organic liquid fire-extinguishing agent, the improvement which comprises; employing a liquid agent, selected from the group consisting of bromodichloromethane and dichlorotrifluoroethane.",
    "2. The composition of claim 1 which is a thixotropic gel.",
    "3. A non-aqueous, fire-extinguishing composition of low ozone depletion potential, which consists essentially of; a non-aqueous gelled dispersion of a dry powder fire-extinguishing agent in a liquid selected from the group consisting of bromodichloromethane and dichlorotrifluoroethane.",
    "4. The composition of claim 3 wherein the dry powder is selected from the group consisting of sodium bicarbonate, monoammonium phosphate, ammonium polyphosphate, potassium bicarbonate, sodium borate and mixtures thereof.",
    "5. The composition of claim 4 wherein the dry powder is a mixture of sodium bicarbonate and sodium borate in a weight ratio of from about 1:1 to 4:1.",
    "6. The composition of claim 3 wherein the dry powders have average particle diameters of from about 0.1 to 500 microns.",
    "7. The composition of claim 3 which further consists of a volatile organic liquid fire-extinguishing agent having a critical vapor pressure greater or less than that of bromodichloromethane.",
    "8. The composition of claim 7 wherein the additional liquid agent is 1, 1, 1-trichloromethane.",
    "9. The composition of claim 3 wherein the gelling agent is fumed silica/alumina."
  ],
  "cpc": [
    "A62D 1/0064"
  ],
  "assignees": [
    "POWSUS INC"
  ],
  "filing_date": "1991-01-02",
  "publication_date": "1991-10-08",
  "grant_date": "1991-10-08",
  "priority_date": "1991-01-02",
  "application_number": "US-63677391-A",
  "family_id": "24553262",
  "citations": [
    "US2653130A",
    "US2821257A",
    "US3106530A",
    "US3276999A",
    "US3480545A",
    "US4459213A",
    "US4908161A",
    "US4920154A"
  ]
}