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GB1422438A - Fire-fighting - Google Patents

Fire-fighting

Info

Publication number
GB1422438A
GB1422438A GB5336973A GB5336973A GB1422438A GB 1422438 A GB1422438 A GB 1422438A GB 5336973 A GB5336973 A GB 5336973A GB 5336973 A GB5336973 A GB 5336973A GB 1422438 A GB1422438 A GB 1422438A
Authority
GB
United Kingdom
Prior art keywords
concentrate
foam
water
fire
fighting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5336973A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philadelphia Suburban Corp
Original Assignee
Philadelphia Suburban Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philadelphia Suburban Corp filed Critical Philadelphia Suburban Corp
Publication of GB1422438A publication Critical patent/GB1422438A/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62DCHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D1/00Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
    • A62D1/0071Foams

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing Compositions (AREA)

Abstract

1422438 Fire-fighting composition PHILADELPHIA SUBURBAN CORP 16 Nov 1973 [17 Nov 1972] 53369/73 Heading ASA An aqueous pumpable concentrate for dilution with at least about ten times its volume of water and foaming with air to produce a fire-fighting foam, comprises (a) a water-soluble thixotropic polysaccharide in an amount to cause the diluted concentrate to gel when applied to non-aqueous polar solvents, and (b) foaming agent for causing the diluted concentrate to form a foam having an expansion of at least about 3. Polysaccharides having at least 100 glucose units, or a molecular weight of at least about 18000 may be used e.g. sclerogluten which may be present from 1 to 3% by wt of the concentrate, xanthan gum. The concentrate may contain 25 to 60% by wt. N-methyl pyrrolidone-2, or a solvent a major proportion of which is N-methyl pyrrolidone-2 in which the other components are dissolved. The solvent may also include water and sufficient ethylene glycol to keep the water from freezing at -20‹C, or the concentrate may contain sufficient ethylene glycol or other antifreeze agent to reduce its freezing point to -20‹C or below. The concentrate may contain (1) film-forming material to cause the foam to form an aqueous film over liquid hydrocarbons e.g. a mixture of fluorocarbon and silicone surfactants examples of which are given, that reduces the surface tension of the diluted concentrate to 19 dynes or less cm; (2) a foam-stabilizing hydrophilic resin e.g. a polymeric material having repeating hydrocarbon groups and repeating groups of a halfamide of succinic acid, wherein the hydrocarbon groups are phenyl ethylene groups and the half-amide is the half-amide of 3-dimethylamino propylamine, examples being given. In fighting a fire of burning combustible liquid e.g. a hydrophilic liquid such as ethanol or acetone, an aqueous solution formed by diluting the concentrate with at least about ten times its volume of water is foamed with air and the foam applied to the burning liquid.
GB5336973A 1972-11-17 1973-11-16 Fire-fighting Expired GB1422438A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30747972A 1972-11-17 1972-11-17

Publications (1)

Publication Number Publication Date
GB1422438A true GB1422438A (en) 1976-01-28

Family

ID=23189951

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5336973A Expired GB1422438A (en) 1972-11-17 1973-11-16 Fire-fighting

Country Status (7)

Country Link
JP (1) JPS5424240B2 (en)
BE (1) BE807399A (en)
CA (1) CA989155A (en)
DE (1) DE2357281C3 (en)
FR (1) FR2206958B1 (en)
GB (1) GB1422438A (en)
HK (1) HK14081A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0276912A1 (en) * 1987-01-09 1988-08-03 Freeman Chemicals Limited Polymers Division Foams for fire-fighting, blanketing or vapour suppression
US5496475A (en) * 1992-10-30 1996-03-05 Ciba-Geigy Corporation Low viscosity polar-solvent fire-fighting foam compositions
US6518345B2 (en) 2000-01-17 2003-02-11 Dainippon Ink And Chemicals, Inc. Fire extinguishing composition
CN103170087A (en) * 2011-12-20 2013-06-26 陕西坚瑞消防股份有限公司 Fire-extinguishing composition containing sugars and sugar derivatives
CN117643709A (en) * 2023-11-28 2024-03-05 陕西交通控股集团有限公司宜富分公司 Antifreezing fire water evaporation-proof crystallization inhibitor and preparation method thereof

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU520410B2 (en) * 1977-06-21 1982-01-28 National Foam System, Inc. Fighting fire
FR2475926B1 (en) * 1980-02-14 1985-06-14 Rhone Poulenc Spec Chim CONCENTRATED AQUEOUS COMPOSITIONS GENERATING FOAMS AND THEIR APPLICATION TO EXTINGUISHING FIRES
FR2737126B1 (en) * 1995-07-27 1998-02-06 Atochem Elf Sa FLUOROPROTEINIC EMULSERS FORMING VERSATILE FILMS
DE102007016965A1 (en) 2007-04-10 2008-10-16 Evonik Goldschmidt Gmbh Use of anionic silicone surfactants to produce foam
DE102007016966A1 (en) 2007-04-10 2008-10-16 Evonik Goldschmidt Gmbh Silicone surfactant compositions and their use for producing foam
DE102008000845A1 (en) 2008-03-27 2009-10-01 Evonik Goldschmidt Gmbh Use of a composition containing silicon organic compounds and optionally surfactant active compounds with perfluorinated units, to produce fire-extinguishing foam, which is useful to clean device or apparatus, and reduce evaporation loss
DE102008054712A1 (en) 2008-12-16 2010-06-17 Evonik Goldschmidt Gmbh Use of amphoteric surfactants to produce foam
DE102011053304A1 (en) 2011-09-06 2013-03-07 Universität Zu Köln Siloxane-containing fire-extinguishing foam
CN115554644A (en) * 2022-08-26 2023-01-03 中国科学技术大学 High-stability fluoride-free foam extinguishing agent and preparation method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1424243A (en) * 1964-02-28 1966-01-07 Dow Chemical Co Gelled aqueous foam, usable for fire fighting, and method of preparing this foam

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0276912A1 (en) * 1987-01-09 1988-08-03 Freeman Chemicals Limited Polymers Division Foams for fire-fighting, blanketing or vapour suppression
US5496475A (en) * 1992-10-30 1996-03-05 Ciba-Geigy Corporation Low viscosity polar-solvent fire-fighting foam compositions
US6518345B2 (en) 2000-01-17 2003-02-11 Dainippon Ink And Chemicals, Inc. Fire extinguishing composition
CN103170087A (en) * 2011-12-20 2013-06-26 陕西坚瑞消防股份有限公司 Fire-extinguishing composition containing sugars and sugar derivatives
CN103170087B (en) * 2011-12-20 2015-12-09 西安坚瑞安全应急设备有限责任公司 A kind of fire-extinguishing composite containing carbohydrate and carbohydrate derivative
CN117643709A (en) * 2023-11-28 2024-03-05 陕西交通控股集团有限公司宜富分公司 Antifreezing fire water evaporation-proof crystallization inhibitor and preparation method thereof

Also Published As

Publication number Publication date
FR2206958A1 (en) 1974-06-14
DE2357281A1 (en) 1974-06-06
FR2206958B1 (en) 1978-02-24
JPS49135492A (en) 1974-12-26
BE807399A (en) 1974-05-16
AU6234873A (en) 1975-05-15
CA989155A (en) 1976-05-18
DE2357281B2 (en) 1979-09-06
JPS5424240B2 (en) 1979-08-20
DE2357281C3 (en) 1980-05-29
HK14081A (en) 1981-04-24

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
746 Register noted 'licences of right' (sect. 46/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee