EP0277116B1 - Produit, notamment de lutte contre les incendies et d'impregnation ignifuge - Google Patents

Produit, notamment de lutte contre les incendies et d'impregnation ignifuge Download PDF

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Publication number
EP0277116B1
EP0277116B1 EP19860904174 EP86904174A EP0277116B1 EP 0277116 B1 EP0277116 B1 EP 0277116B1 EP 19860904174 EP19860904174 EP 19860904174 EP 86904174 A EP86904174 A EP 86904174A EP 0277116 B1 EP0277116 B1 EP 0277116B1
Authority
EP
European Patent Office
Prior art keywords
vol
impregnation
fire control
fireproofing
fire
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 - Lifetime
Application number
EP19860904174
Other languages
German (de)
English (en)
Other versions
EP0277116A1 (fr
Inventor
Edmund Pennartz
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.)
DOEKA FEUERLOESCHGERAETEBAU GmbH
Original Assignee
DOEKA FEUERLOESCHGERAETEBAU GmbH
Doeka Feuerloschgeratebau GmbH
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 DOEKA FEUERLOESCHGERAETEBAU GmbH, Doeka Feuerloschgeratebau GmbH filed Critical DOEKA FEUERLOESCHGERAETEBAU GmbH
Publication of EP0277116A1 publication Critical patent/EP0277116A1/fr
Application granted granted Critical
Publication of EP0277116B1 publication Critical patent/EP0277116B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
    • A62D1/0028—Liquid extinguishing substances
    • A62D1/0035—Aqueous solutions

Definitions

  • the invention relates to a means of fighting fire and preventing fire by impregnation.
  • Fire-fighting solutions in the form of aqueous solutions which contain one or more surfactants in a concentration of 0.02 to 0.2 percent by volume are known from DE-A1-3100158. According to this known prior art, however, only nonionic surfactants are used as surfactants, specifically those obtained by condensation of ethylene oxide or propylene oxide with various hydroxyl-containing base compounds.
  • nonionic surfactants in certain amounts is done to avoid excessive foaming when extinguishing.
  • alkylarylsulfonates as surface-active agents to aqueous fire-fighting solutions based on a mixture of potassium carbonate and potassium hydrogen carbonate. After a certain time in which a blowing agent pressure has built up from the constituents, agents of this type exhibit an alkaline pH which requires the use of surfactants which are effective in alkaline.
  • FR-A-1338454 From FR-A-1338454 it is known to be neutral to very strong to use weakly basic reacting fire-fighting agents which contain potassium acetate as a main component, optionally in addition to potassium pyrophosphate.
  • Non-ionic surfactants are expressly recommended as surfactants for such agents.
  • the present invention has for its object to provide a sprayable in fine form for fire fighting and fire prevention by impregnation, which has high impregnation and excellent fire extinguishing properties and at the same time is easily biodegradable and non-toxic.
  • an agent for fire fighting and fire prevention by impregnation which is characterized in that it is an aqueous solution containing alkali metal citrate or sulfate up to at most the saturation concentration, which is 0.02 to 0.2 percent by volume alkyl aryl sulfonate and optionally contains a glycol and optionally up to 1 volume percent 30% acetic acid.
  • the concentration of the alkylarylsulfonate is 0.09 percent by volume, and the glycol is 1.2 ethanediol and is present in an amount of 2.1 percent by volume.
  • Alkylarylsulfonates (R-Ar-SO3 ⁇ Me+) have been used mainly in synthetic detergents. They have good emulsifying, degreasing and wetting properties as well as a high chemical resistance. Since they usually contain unbranched radicals R, they are readily biodegradable. Their toxicity to fish is based solely on the fact that they greatly reduce the surface tension of the water.
  • the agent according to the invention can be used advantageously for fire extinguishing or prevention, since the distribution of the individual extinguishing drops at the spray nozzle of the extinguishing device becomes much finer due to the substantial reduction in the surface tension caused by alkylarylsufonate. At the same time, the surface of the extinguishing agent to be sprayed magnified many times over.
  • alkylarylsufonate as a wetting agent to the extinguishing agent, fire-extinguishing substances that are difficult to extinguish, such as straw, hay, bales of wool, finished textiles, powder, etc., which often have a complex, structured surface, are wetted, so to speak, thoroughly, soaked in the air. This makes deletion considerably easier and faster.
  • the proportion of alkylralyl sulfonate in the extinguishing agent is preferably limited to about 0.09 percent by volume.
  • the surface tension can be reduced by approx. 60%, without precipitation of the inert substances occurring even after a long standing time (eg 3 weeks).
  • an aqueous solution with alkali metal citrate and / or sulfates is used up to the saturation concentration.
  • This solution is colorless, clear, neutral smelling and viscous.
  • alkali metal citrate With alkali metal citrate, a prophylactic impregnation of the fire environment and / or a general impregnation of various, highly flammable materials can be achieved, which thereby become largely fire-resistant.
  • the impregnation effect is then further optimized by adding or combining with alkylarylsulfonate.
  • Another basic requirement for fire extinguishing agents is the protection against freezing at temperatures down to at least -30 ° C. Since the extinguishing agent, which essentially consists of alkali metal citrate, has a high degree of saturation due to the concentrated solution of aliphatic salts, it is inherently frost-resistant down to -15 ° C. However, the one according to the invention is preferred Mixture of 1,2-ethanediol added.
  • the use of the agent according to the invention in firefighting leads to a reduction in the extinguishing agent requirement, a widening of the spray mist and a compression of the spray curtain when it emerges from the spray nozzle of the extinguishing device, which above all enables it to fight class A and B fires.
  • the agent according to the invention can in particular contain fires with a strong formation of embers.
  • alkali metal citrate in aqueous solution for the agent according to the invention. This is admixed with 1.2% by volume of ethanediol with 4.2% by volume of distilled water.
  • CH3-COOH As a buffer solution to create a slightly acidic environment with a pH of 6.5, CH3-COOH (30%) is added to 0.2 volume percent along with distilled water to 2.0 volume percent.
  • 0.09 percent by volume of alkyarylsufonate is added as a wetting agent.

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

Un mélange spécialement utile pour combattre des incendies et pour rendre des objets ignifuges par imprégnation est composé de 91,4 % en volume de citrate de métaux alcalins comme substance ignifuge, de 2,1 % en volume d'éthandiol comme substance antigel, de 0,09 % en volume de sulfonate d'alkylaryle comme agent mouillant, de 0,2 % en volume d'acide acétique à 30 % afin de former un environnement légèrement acide et de 6,2 % en volume d'eau distillée.

Claims (4)

1. Produit pour la lutte contre l'incendie et pour la protection contre l'incendie par imprégnation, caractérisé en ce que ce produit est une solution aqueuse ayant une teneur en citrate de métal alcalin ou en sulfate de métal alcalin allant tout au plus jusqu'à la concentration de saturation, laquelle solution contient 0,02 à 0,2% en volume de sulfonate alkylarylique,ainsi qu'éventuellement un glycol,et éventuellement jusqu'à 1% en volume d'acide acétique à 30%.
2. Produit selon la revendication 1, caractérisé en ce que la concentration du sulfonate alkylarylique est de 0,09% en volume.
3. Produit selon la revendication 1 ou 2, caractérisé en ce que le glycol est le 1,2-éthanediol et qu'il est présent en une quantité correspondant à 2,1% en volume.
4. Procédé pour la lutte contre l'incendie et la protection contre l'incendie par l'imprégnation de matériaux facilement inflammables, caractérisé en ce qu'on pulvérise comme produit extincteur ou comme produit d'imprégnation un produit selon l'une des revendications 1 à 3.
EP19860904174 1986-07-18 1986-07-18 Produit, notamment de lutte contre les incendies et d'impregnation ignifuge Expired - Lifetime EP0277116B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1986/000425 WO1988000482A1 (fr) 1986-07-18 1986-07-18 Produit, notamment de lutte contre les incendies et d'impregnation ignifuge

Publications (2)

Publication Number Publication Date
EP0277116A1 EP0277116A1 (fr) 1988-08-10
EP0277116B1 true EP0277116B1 (fr) 1991-09-11

Family

ID=8165128

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860904174 Expired - Lifetime EP0277116B1 (fr) 1986-07-18 1986-07-18 Produit, notamment de lutte contre les incendies et d'impregnation ignifuge

Country Status (3)

Country Link
EP (1) EP0277116B1 (fr)
DE (1) DE3681455D1 (fr)
WO (1) WO1988000482A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8914458D0 (en) * 1989-06-23 1989-08-09 Graviner Ltd Methods,apparatus and substances for extinguishing fires
FR2702963A1 (fr) * 1993-03-22 1994-09-30 Landrieau Michel Equipement de surveillance et de protection d'un immeuble en cas d'incendie périphérique.
GB2301122A (en) * 1995-05-24 1996-11-27 Cyril Glass Flame retardant compositions
GB2331457B (en) * 1997-11-12 2001-07-04 Graviner Ltd Kidde Fire or explosion suppressants and methods
NL1020162C2 (nl) * 2002-03-13 2003-09-16 Plyboo Bambooflooring Internat Werkwijze voor het vervaardigen van bamboedelen, bamboestrip en samenstel van bamboestrips te vervaardigen door zo een werkwijze.
DE102004056830A1 (de) 2004-11-24 2006-06-08 Basf Ag Brandlöschende und/oder brandhemmende Zusammensetzungen
US8080186B1 (en) 2010-11-16 2011-12-20 Pennartz Edmund R J Fire mitigation and moderating agents
US11865394B2 (en) 2017-12-03 2024-01-09 Mighty Fire Breaker Llc Environmentally-clean biodegradable water-based concentrates for producing fire inhibiting and fire extinguishing liquids for fighting class A and class B fires
US11865390B2 (en) 2017-12-03 2024-01-09 Mighty Fire Breaker Llc Environmentally-clean water-based fire inhibiting biochemical compositions, and methods of and apparatus for applying the same to protect property against wildfire
US11826592B2 (en) 2018-01-09 2023-11-28 Mighty Fire Breaker Llc Process of forming strategic chemical-type wildfire breaks on ground surfaces to proactively prevent fire ignition and flame spread, and reduce the production of smoke in the presence of a wild fire
WO2019173234A1 (fr) 2018-03-05 2019-09-12 Fire Mitigation Technologies, LLC Compositions et agents ignifuges et d'atténuation d'incendie
US11911643B2 (en) 2021-02-04 2024-02-27 Mighty Fire Breaker Llc Environmentally-clean fire inhibiting and extinguishing compositions and products for sorbing flammable liquids while inhibiting ignition and extinguishing fire

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE634504A (fr) * 1962-08-03
FR1444056A (fr) * 1965-05-13 1966-07-01 Soc Etu Chimiques Ind Et Agri Compositions pour solutions extinctrices
JPS56130167A (en) * 1980-03-12 1981-10-12 Fuaiaa Auto Entaapuraisezu Co Composition for fire extinguishing and fire extinguishing method
AT369995B (de) * 1981-02-12 1983-02-25 Ragailler Franz Mittel zum loeschen von feuer und zum gleichzeitigen flammfestmachen der umgebung des brandherdes

Also Published As

Publication number Publication date
EP0277116A1 (fr) 1988-08-10
WO1988000482A1 (fr) 1988-01-28
DE3681455D1 (de) 1991-10-17

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