EP0300070B2 - Foam fire-extinguishing agents - Google Patents
Foam fire-extinguishing agents Download PDFInfo
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- EP0300070B2 EP0300070B2 EP87110532A EP87110532A EP0300070B2 EP 0300070 B2 EP0300070 B2 EP 0300070B2 EP 87110532 A EP87110532 A EP 87110532A EP 87110532 A EP87110532 A EP 87110532A EP 0300070 B2 EP0300070 B2 EP 0300070B2
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- European Patent Office
- Prior art keywords
- foam
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- alkyl
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- 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.)
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- 239000006260 foam Substances 0.000 title claims description 33
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 15
- 150000002191 fatty alcohols Chemical class 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 15
- 229920001282 polysaccharide Polymers 0.000 claims description 9
- 239000005017 polysaccharide Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 150000004676 glycans Chemical class 0.000 claims description 6
- 239000007798 antifreeze agent Substances 0.000 claims description 5
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical compound CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 claims description 4
- WMDZKDKPYCNCDZ-UHFFFAOYSA-N 2-(2-butoxypropoxy)propan-1-ol Chemical compound CCCCOC(C)COC(C)CO WMDZKDKPYCNCDZ-UHFFFAOYSA-N 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 description 21
- 239000004094 surface-active agent Substances 0.000 description 13
- -1 Ethylen, Propylen Chemical class 0.000 description 7
- 230000002528 anti-freeze Effects 0.000 description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 4
- 238000005187 foaming Methods 0.000 description 4
- 125000003976 glyceryl group Chemical group [H]C([*])([H])C(O[H])([H])C(O[H])([H])[H] 0.000 description 4
- 229920006254 polymer film Polymers 0.000 description 4
- 125000006273 (C1-C3) alkyl group Chemical group 0.000 description 3
- 125000003545 alkoxy group Chemical group 0.000 description 3
- 239000004088 foaming agent Substances 0.000 description 3
- 125000001165 hydrophobic group Chemical group 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N Propene Chemical compound CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 125000005037 alkyl phenyl group Chemical group 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 150000001720 carbohydrates Chemical class 0.000 description 2
- 150000007942 carboxylates Chemical class 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000009021 linear effect Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 108010053481 Antifreeze Proteins Proteins 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- 239000005905 Hydrolysed protein Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001336 alkenes Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004872 foam stabilizing agent Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 125000000963 oxybis(methylene) group Chemical group [H]C([H])(*)OC([H])([H])* 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003495 polar organic solvent Substances 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000003531 protein hydrolysate Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 210000002023 somite Anatomy 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
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
- A62D1/0071—Foams
Definitions
- the invention relates to a fire extinguishing foam agent.
- fire extinguishing foam agents which consists of a foam-forming component, an anti-freeze component, possibly a foam stabilizer and a solvent, such as Water, and in which a highly effective shielding of the oxygen supply to the fire object is achieved on the basis of proteins or surfactants.
- Hydrolysed proteins e.g. Protein hydrolyzates, possibly combined with fluorosurfactants or surfactants at all. Wildfires can also be fought alone with water film-forming foaming agents (AFFF).
- the foaming agents are added in amounts of approximately 2% to 6% to the extinguishing water, which forms the foam mechanically when mixed with air.
- the invention is therefore based on the object to provide an improved fire extinguishing foam agent with improved fire protection properties, which has a very good compatibility with a wide variety of polymer film formers, which are otherwise not compatible with conventional surfactants, and which allows the incorporation of a wide variety of antifreeze agents, at the same time improved seawater resistance is to be achieved, so that the fire extinguishing foam agent polar even in fires Liquids and water-miscible hydrocarbons can be used at sea. Furthermore, the suction behavior at low temperatures should be achieved in addition to an improvement in the stability of the foam against acids and alkalis.
- a fire extinguishing foam agent which as an foam-forming component, an alkyl polyglycoside of the formula where n is an integer from 2 to 10 and R represents the remainder of a fatty alcohol having 6 to 12 carbon atoms, which has the advantages indicated above, it being possible to incorporate the various known antifreeze agents into the fire extinguishing foam agent without the excellent Effect of the fire extinguishing foam agent is impaired in any way, and there is also the good compatibility of this foam-forming component with water film and polymer film formers, so that foams can be formed, the stability and fine bubbles are not impaired.
- the fire extinguishing foam composition is composed as follows: Alkyl polyglycoside 8-30%, preferably 15% Polysaccharide 0.3-1.5%, preferably 0.5% Fluorosurfactant 1-7%, preferably 3% Water, replenished 100%, preferably 47.5% Antifreeze amount depending on the desired frost resistance 5-35%
- the propylene glycol n-butyl ether and / or di-propylene glycol n-butyl ether can also be added to any known fire extinguishing foam agent.
- a fire extinguishing foam agent with the foam-forming component as recipe 3 is compared with a fire extinguishing foam agent as recipes 1 and 2, recipe 1 as foaming agent containing no alkyl polyglycoside, and recipe 2 containing no ether.
- the concentrations given in% are% by weight.
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)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
Description
Die Erfindung betrifft ein Feuerlöschschaummittel.The invention relates to a fire extinguishing foam agent.
Zum Löschen von Bränden ist u.a. auch der Einsatz von Feuerlöschschaummitteln bekannt, die aus einer schaumbildenden Komponente, einer Frostschutzkomponente, ggf. einem Schaumstabilisator und einem Lösungsmittel, wie z.B. Wasser, bestehen und bei denen auf der Basis von Proteinen oder Tensiden eine höchst wirksame Abschirmung der Sauerstoffzufuhr zum Brandobjekt erreicht wird. Als Schaumbildner werden hydrolisierte Proteine, z.B. Eiweißhydrolisate, evtl. kombiniert mit Fluortensiden oder Tensiden überhaupt verwendet. Flächenbrände können auch allein mit wasserfilmbildenden Schaumbildnern (AFFF) bekämpft werden. Die Schaumbildner werden in Mengen von etwa 2% bis 6% dem Löschwasser zugesetzt, das durch Vermischung mit Luft den Schaum auf mechanischem Wege bildet.To extinguish fires the use of fire extinguishing foam agents is also known, which consists of a foam-forming component, an anti-freeze component, possibly a foam stabilizer and a solvent, such as Water, and in which a highly effective shielding of the oxygen supply to the fire object is achieved on the basis of proteins or surfactants. Hydrolysed proteins, e.g. Protein hydrolyzates, possibly combined with fluorosurfactants or surfactants at all. Wildfires can also be fought alone with water film-forming foaming agents (AFFF). The foaming agents are added in amounts of approximately 2% to 6% to the extinguishing water, which forms the foam mechanically when mixed with air.
Durch die EP-A-0120092 ist ein oberflächenaktives Agens und ein organisches Lösungsmittel enthaltendes Feuerlöschschaummittel bekannt, das
- (a) 0,3 bis 15 Gew.-% mindestens einer Verbindung der Formel
- (b) 1 bis 30 Gew.-% eines oberflächenaktiven Agens;
- (c) 0,5 bis 20 Gew.-% mindestens eines Vertreters, der ausgewählt wird aus der Gruppe aliphatischer Monohydroxyalkohol, aliphatischer Polyhydroxyalkohol, Glycolether und Ethylencarbonat und/oder 0,1 bis 5 Gew.-% eines wasserlöslichen Polymeren;
- (d) 1 bis 50 Gew.-% eines polaren organischen Lösungsmittels, das ein gutes Lösungsmittel für die Komponente (a) ist; und
- (e) mindestens 50 Gew.-% Wasser, enthält.
- (1) ein Alkylpolysaccharid-grenzflächenaktives Mittel der Formel
RO(R¹O)tZx,
worin Z ein von einem reduzierenden, 5 bis 6 Kohlenstoffatome enthaltenden Saccharid abgeleiteter Rest ist; R eine hydrophobe Gruppe, ausgewählt aus der aus Alkyl-, Alkylphenylgruppen, und Mischungen davon, bestehenden Gruppe, ist , in welcher die genannten Alkylgruppen 8 bis 18 Kohlenstoffatome enthalten, wobei die genannte Alkylgruppe entweder gesättigt oder ungesättigt ist und 0 bis 3 Hydroxygruppen enthält; R¹ Ethylen, Propylen und/oder Glyceryl ist; t 0 bis 30 ist; und x eine Zahl von 1,5 bis 10 ist; - (2) ein anionisches, co-grenzflächenaktives Mittel, ausgewählt aus der Gruppe, die aus mit einem oder mehreren kationischen Resten neutralisierten Sulfaten, Sulfonaten, Carboxylaten, und Mischungen davon, besteht, wobei das Gewichtsverhältnis von (2) zu (1) 1 : 10 bis 10 : 1 beträgt; und
- (3) 2 Gew.-% bis 10 Gew.-% eines Hilfsschaumverstärkers, ausgewählt aus der Gruppe, die aus:
- (a) Amiden der Formel
- (b) Aminoxiden der Formel
- (c) Mischungen davon, besteht, enthält.
- (a) Amiden der Formel
- (a) 0.3 to 15% by weight of at least one compound of the formula
- (b) 1 to 30% by weight of a surfactant;
- (c) 0.5 to 20% by weight of at least one representative selected from the group consisting of aliphatic monohydroxy alcohol, aliphatic polyhydroxy alcohol, glycol ether and ethylene carbonate and / or 0.1 to 5% by weight of a water-soluble polymer;
- (d) 1 to 50% by weight of a polar organic solvent which is a good solvent for component (a); and
- (e) contains at least 50% by weight of water.
- (1) an alkyl polysaccharide surfactant of the formula
RO (R¹O) t Z x ,
wherein Z is a residue derived from a reducing saccharide containing 5 to 6 carbon atoms; R is a hydrophobic group selected from the group consisting of alkyl, alkylphenyl groups, and mixtures thereof, in which said alkyl groups contain 8 to 18 carbon atoms, said alkyl group being either saturated or unsaturated and containing 0 to 3 hydroxy groups; R1 is ethylene, propylene and / or glyceryl; t is 0 to 30; and x is a number from 1.5 to 10; - (2) an anionic co-surfactant selected from the group consisting of sulfates, sulfonates, carboxylates, and mixtures thereof neutralized with one or more cationic residues, the weight ratio of (2) to (1) 1: Is 10 to 10: 1; and
- (3) 2% to 10% by weight of an auxiliary foam booster selected from the group consisting of:
- (a) Amides of the formula
- (b) Amine oxides of the formula
- (c) Mixtures thereof, contains.
- (a) Amides of the formula
Eine weitere schäumende Zusammensetzung ist durch die EP-A-0070075 bekannt. Diese schäumende Zusammensetzung enthält:
- (1) ein Alkylpolysaccharid - grenzflächenaktives Mittel der Formel
RO(R¹⁰)tZx,
worin Z ein von einem reduzierenden, 5-6 Kohlenstoffatome enthaltenden Saccharid abgeleiteter Rest ist; R eine hydrophobe Gruppe ist, die aus der aus Alkyl-, Alkylphenylgruppen, und Mischungen davon, bestehenden Gruppe ausgewählt ist, in welcher die genannten Alkylgruppen 8 bis 18 Kohlenstoffatome enthalten, wobei die Alkylgruppe entweder gesättigt oder ungesättigt ist und 0 bis 3 Hydroxygruppen enthält; R¹ Ethylen, Propylen und/oder Glyceryl ist; t 0 bis 30 ist; und x eine Zahl von 1,5 bis 10 ist; und - (2) ein Gemisch von mit einem oder mehreren kationischen Resten neutralisierten anionischen co-grenzflächenaktiven Mitteln, das im wesentlichen aus:
- (a) 1 Gew.-% bis 95 Gew.-% eines wasserlöslichen Alkylbenzolsulfonats, in welchem die Alkylgruppe 10 bis 13 Kohlenstoffatome enthält, und
- (b) 5 Gew.-% bis 99 Gew.-% eines co-grenzflächenaktiven Mittels, ausgewählt aus der Gruppe, bestehend aus einem Alkylglycerylethersulfonat, in welchem die Alkylgruppe 8 bis 18 Kohlenstoffatome enthält, einem α-Olefinsulfonat, in welchem die Olefingruppe 10 bis 18 Kohlenstoffatome enthält, einem Alkylpolyethoxylatcarboxylat, in welchem die Alkylgruppe 10 bis 18 Kohlenstoffatome enthält, und die Polyethoxylatkette 2 bis 6 Ethoxylatgruppen enthält, und Mischungen davon, besteht.
- (1) an alkyl polysaccharide surfactant of the formula
RO (R¹⁰) t Z x ,
wherein Z is a residue derived from a reducing saccharide containing 5-6 carbon atoms; R is a hydrophobic group selected from the group consisting of alkyl, alkylphenyl groups, and mixtures thereof, in which said alkyl groups contain 8 to 18 carbon atoms, the alkyl group being either saturated or unsaturated and containing 0 to 3 hydroxy groups; R1 is ethylene, propylene and / or glyceryl; t is 0 to 30; and x is a number from 1.5 to 10; and - (2) a mixture of anionic co-surfactants neutralized with one or more cationic residues, consisting essentially of:
- (a) 1% to 95% by weight of a water-soluble alkylbenzenesulfonate in which the alkyl group contains 10 to 13 carbon atoms, and
- (b) 5% to 99% by weight of a co-surfactant selected from the group consisting of an alkyl glyceryl ether sulfonate in which the alkyl group contains 8 to 18 carbon atoms, an α-olefin sulfonate in which the olefin group 10 contains up to 18 carbon atoms, an alkyl polyethoxylate carboxylate in which the alkyl group contains 10 to 18 carbon atoms and the polyethoxylate chain contains 2 to 6 ethoxylate groups, and mixtures thereof.
Diese bekannten Feuerlöschschaummittel und schäumende Zusammensetzungen, die ebenfalls für den Einsatz als Feuerlöschmittel u.a. vorgesehen sind, dienen zur Erhöhung der Stabilität des erzeugten Schaumes und dienen zur Unterstützung der Schaumbildung.These known fire extinguishing foam agents and foaming compositions, which are also suitable for use as fire extinguishing agents and others. are provided, serve to increase the stability of the foam produced and serve to support foam formation.
Der Erfindung liegt daher die Aufgabe zugrunde, ein verbessertes Feuerlöschschaummittel mit verbesserten feuerschützenden Eigenschaften zu schaffen, das eine sehr gute Verträglichkeit mit den verschiedensten Polymerfilmbildnern, die sonst mit herkömmlichen Tensiden nicht verträglich sind, hat und das das Einarbeiten der verschiedensten Frostschutzmittel ermöglicht, wobei gleichzeitig eine verbesserte Seewasserbeständigkeit erreicht werden soll, so daß das Feuerlöschschaummittel auch bei Bränden polarer Flüssigkeiten sowie sich mit Wasser mischbaren Kohlenwasserstoffen auf See einsetzbar ist. Des weiteren soll das Ansaugverhalten bei tiefen Temperaturen neben einer Stabilitätsverbesserung des Schaumes gegenüber Säuren und Alkalien erreicht werden.The invention is therefore based on the object to provide an improved fire extinguishing foam agent with improved fire protection properties, which has a very good compatibility with a wide variety of polymer film formers, which are otherwise not compatible with conventional surfactants, and which allows the incorporation of a wide variety of antifreeze agents, at the same time improved seawater resistance is to be achieved, so that the fire extinguishing foam agent polar even in fires Liquids and water-miscible hydrocarbons can be used at sea. Furthermore, the suction behavior at low temperatures should be achieved in addition to an improvement in the stability of the foam against acids and alkalis.
Diese Aufgabe wird durch ein Feuerlöschschaummittel mit den durch die im Patentanspruch 1 gekennzeichneten Merkmale gelöst.This object is achieved by a fire extinguishing foam agent with the features characterized in claim 1.
Durch die Verwendung eines Alkylpolyglycosides als schaumbildende Komponente in einem Feuerlöschschaummittel werden wesentliche Verbesserungen an Feuerlöschschaummitteln erreicht. Diese Vorteile sind gegeben durch die gute Verträglichkeit des Alkylpolyglycosides mit diversen Polymerfilmbildnern, die mit herkömmlichen Tensiden nicht verträglich sind, und ferner durch die Möglichkeit, verschiedene Frostschutzmittel mit einzuarbeiten. Gegenüber den herkömmlichen Feuerlöschschaummitteln werden noch folgende Vorteile erzielt:
- Erhöhung der Seewasserbeständigkeit und somit Verträglichkeit der schaumbildenden Komponente bei Verwendung von Seewasser im Löscheinsatz;
- wesentliche Erweiterung der Anzahl der zu löschenden, schaumzerstörenden Flüssigkeiten;
- Verbesserung des Ansaugverhaltens,insbesondere bei tiefen Temperaturen,
- a) durch Viskositätserniedrigung (Verringerung des Polymerfilmbildners)
- b) Verbesserung des pseudoplastischen (strukturviskosen) Verhaltens;
- Verbesserung der Alterungsbeständigkeit, speziell bei extremen Temperaturen sowie der Gefrier- und Aufbaustabilität;
- Verbesserung der Hitzebeständigkeit des Konzentrats;
- Verbesserung des Korrosionsverhaltens;
- Erhöhung der Stabilität des Schaumes gegenüber Säuren und Alkalien, was besonders vorteilhaft zur Emissionsminderung bei Abdeckung ausgelaufener Chemikalien ist;
- erhebliche Minderung der Fisch- und Bakterientoxizität;
- Einsparung von zusätzlichen Tensiden und Schaumstabilisatoren.
- Increase in seawater resistance and thus compatibility of the foam-forming component when using seawater in fire fighting;
- substantial expansion of the number of foam-destroying liquids to be extinguished;
- Improvement of the suction behavior, especially at low temperatures,
- a) by lowering the viscosity (reducing the polymer film former)
- b) improvement of pseudoplastic (pseudoplastic) behavior;
- Improvement of aging resistance, especially at extreme temperatures as well as freezing and building stability;
- Improving the heat resistance of the concentrate;
- Improvement of corrosion behavior;
- Increasing the stability of the foam against acids and alkalis, which is particularly advantageous for reducing emissions when covering leaking chemicals;
- significant reduction in fish and bacterial toxicity;
- Saving additional surfactants and foam stabilizers.
Es war überraschend, daß ein Feuerlöschschaummittel, welches als schaumbildende Komponente ein Alkylpolyglycosid der Formel
worin n eine ganze Zahl von 2 bis 10 und R den Rest eines Fettalkohols mit 6 bis 12 C-Atomen darstellen, enthält, die voranstehend angegebenen Vorteile besitzt, wobei die Möglichkeit besteht, in das Feuerlöschschaummittel die verschiedenen bekannten Frostschutzmittel einzuarbeiten, ohne daß die hervorragende Wirkung des Feuerlöschschaummittels in irgendeiner Weise beeinträchtigt wird, wobei auch noch hinzukommt die gute Verträglichkeit dieser schaumbildenden Komponente mit Wasserfilm- und Polymerfilmbildnern, so daß Schäume ausbildbar sind, deren Stabilität und Feinblasigkeit nicht beeinträchtigt werden.It was surprising that a fire extinguishing foam agent, which as an foam-forming component, an alkyl polyglycoside of the formula
where n is an integer from 2 to 10 and R represents the remainder of a fatty alcohol having 6 to 12 carbon atoms, which has the advantages indicated above, it being possible to incorporate the various known antifreeze agents into the fire extinguishing foam agent without the excellent Effect of the fire extinguishing foam agent is impaired in any way, and there is also the good compatibility of this foam-forming component with water film and polymer film formers, so that foams can be formed, the stability and fine bubbles are not impaired.
Das Feuerlöschschaummittel weist folgende Zusammensetzung auf:
- a) Als schaumbildende Komponente Alkylpolyglycosid der Formel
- b) Polysaccharide z.B. ein lineares Polysaccharid,
- c) ein Fluortensid, wobei es sich hierbei um Tenside handelt, die als hydrophobe Gruppe einen Perfluoralkylrest tragen, wie z.B. F₁₇C₈-SO₃K oder F₁₇C₈-CONR₂,
- d) ein bekanntes Frostschutzmittel, z.B. Glycole, Glycolether oder Harnstoff,
- e) Schaumverstärker und Frostschutzmittel, wobei Propylenglycol-n-butylether und/oder Dipropylenglycoln-butylether zur Anwendung kommen.
- a) As a foam-forming component alkyl polyglycoside of the formula
- b) polysaccharides, for example a linear polysaccharide,
- c) a fluorosurfactant, these being surfactants which carry a perfluoroalkyl radical as the hydrophobic group, such as, for example, F₁₇C₈-SO₃K or F₁₇C₈-CONR₂,
- d) a known antifreeze, for example glycols, glycol ether or urea,
- e) foam booster and antifreeze, propylene glycol n-butyl ether and / or dipropylene glycol n-butyl ether being used.
Besonders vorteilhaft ist, wenn nach einer weiteren Ausführungsform der Erfindung das Feuerlöschschaummittel sich wie folgt zusammensetzt:
Aufgrund seiner schaumverstärkenden Eigenschaften und dem Umstand, als Frostschutzmittel eingesetzt zu werden, kann der Propylenglycol-n-butylether und/oder Di-Propylenglycol-n-butylether auch jedem bekannten Feuerlöschschaummittel zugesetzt werden.Because of its foam-enhancing properties and the fact that it can be used as an antifreeze, the propylene glycol n-butyl ether and / or di-propylene glycol n-butyl ether can also be added to any known fire extinguishing foam agent.
Die Erfindung wird anhand des nachstehenden Ausführungsbeispiels erläutert, wobei ein Feuerlöschschaummittel mit der erfindungsgemäß schaumbildenden Komponente als Rezeptur 3 einem Feuerlöschschaummittel als Rezeptur 1 und 2 gegenübergestellt ist, wobei die Rezeptur 1 als Schaumbildner kein Alkylpolyglycosid enthält, und die Rezeptur 2 keinen Ether enthält.The invention is explained on the basis of the exemplary embodiment below, in which a fire extinguishing foam agent with the foam-forming component as recipe 3 is compared with a fire extinguishing foam agent as recipes 1 and 2, recipe 1 as foaming agent containing no alkyl polyglycoside, and recipe 2 containing no ether.
Bei den in % angegebenen Konzentrationen handelt es sich um Gewichts-%.The concentrations given in% are% by weight.
Claims (2)
- Foam fire-extinguishing agents with a foam-producing component from an alkylpolyglycoside having the formula
- Foam fore-extinguishing agent according to Claim 1, characterized in that the foam fire-extinguishing agent has the following composition:
Alkylpolyglycoside having the formula stated in Claim 1 8 - 30% preferably 15% Polysaccharide 0.3 -1 .5% preferably 0.5% Fluorotenside 1 - 7% preferably 3% Volume of antifreeze agent depending on desired freeze resistance 5 - 35% Water, filled to 100% 100% preferably 47.5%.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES198787110532T ES2031094T3 (en) | 1987-07-21 | 1987-07-21 | FOAMING AGENT FOR FIRE FIGHTING. |
| AT87110532T ATE75960T1 (en) | 1987-07-21 | 1987-07-21 | FIRE EXTINGUISHING FOAM AGENT. |
| DE8787110532T DE3779121D1 (en) | 1987-07-21 | 1987-07-21 | FIRE-FIGHTING FOAM. |
| EP87110532A EP0300070B2 (en) | 1987-07-21 | 1987-07-21 | Foam fire-extinguishing agents |
| GR920400803T GR3004598T3 (en) | 1987-07-21 | 1992-05-14 | Foam fire-extinguishing agents. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP87110532A EP0300070B2 (en) | 1987-07-21 | 1987-07-21 | Foam fire-extinguishing agents |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0300070A1 EP0300070A1 (en) | 1989-01-25 |
| EP0300070B1 EP0300070B1 (en) | 1992-05-13 |
| EP0300070B2 true EP0300070B2 (en) | 1995-12-06 |
Family
ID=8197143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP87110532A Expired - Lifetime EP0300070B2 (en) | 1987-07-21 | 1987-07-21 | Foam fire-extinguishing agents |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0300070B2 (en) |
| AT (1) | ATE75960T1 (en) |
| DE (1) | DE3779121D1 (en) |
| ES (1) | ES2031094T3 (en) |
| GR (1) | GR3004598T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19708733B4 (en) * | 1997-03-04 | 2007-05-31 | Cognis Ip Management Gmbh | Liquid foam extinguishing agent based on water |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4999119A (en) * | 1989-07-20 | 1991-03-12 | Chubb National Foam, Inc. | Alcohol resistant aqueous film forming firefighting foam |
| DE4011487A1 (en) * | 1990-04-09 | 1991-10-10 | Henkel Kgaa | TENSID MIXTURE FOR USE IN WASHING AND CLEANING AGENTS |
| IT1264588B1 (en) * | 1993-06-11 | 1996-10-04 | Silvani Antincendi Spa Ora San | FOAMING COMPOSITION TO REDUCE THE PRESSURE ASSOCIATED WITH THE SHOCK WAVE GENERATED BY EXPLOSIONS |
| US5981452A (en) * | 1995-12-04 | 1999-11-09 | Henkel Kommanditgesellschaft Auf Aktien | Syndet soaps comprising alkyl and/or alkenyl oligoglycosides |
| DE19545136C1 (en) * | 1995-12-04 | 1997-04-10 | Henkel Kgaa | Syndet soap bars with little or no free fatty acid content |
| US5882541A (en) * | 1996-11-04 | 1999-03-16 | Hans Achtmann | Biodegradable foam compositions for extinguishing fires |
| US6814880B1 (en) | 1999-02-25 | 2004-11-09 | Cognis Deutschland Gmbh & Co. Kg | Water based liquid foam extinguishing formulation |
| CN104117176A (en) * | 2014-07-23 | 2014-10-29 | 安徽天元消防科技有限公司 | Aqueous film-forming foam extinguishing agent special for fire extinguishing bullet and throwing type fire extinguisher |
| CN116948750B (en) * | 2023-09-20 | 2023-12-15 | 广州洁宜日化用品有限公司 | Preparation method of floor water for sweeping robot |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1431789A (en) * | 1921-09-01 | 1922-10-10 | Samuel H Hamilton | Fire-extinguishing liquid and method of using same |
| DE686645C (en) * | 1936-04-18 | 1940-01-13 | Burckhardt Helferich Dr | Detergents, cleaning agents, wetting agents, emulsifying agents and foaming agents |
| US3422011A (en) * | 1966-05-03 | 1969-01-14 | Kidde & Co Walter | Foam producing material |
| GB1435200A (en) * | 1973-06-21 | 1976-05-12 | Ici Ltd | Fire-fighting foam compositions and method of fire-fighting |
| EP0049958B1 (en) * | 1980-09-30 | 1986-11-05 | Angus Fire Armour Limited | Fire-fighting compositions |
| DE3275201D1 (en) * | 1981-07-13 | 1987-02-26 | Procter & Gamble | Foaming surfactant compositions |
| ATE15498T1 (en) * | 1981-10-08 | 1985-09-15 | Rohm & Haas France | PROCESSES FOR THE PRODUCTION OF SURFACE-ACTIVE GLYCOSIDES AND THEIR USE IN COSMETIC, PHARMACEUTICAL AND HOUSEHOLD PRODUCTS. |
| WO1984001302A1 (en) * | 1982-09-27 | 1984-04-12 | New Japan Chem Co Ltd | Foam fire-extinguishing composition |
| LU84753A1 (en) * | 1983-04-15 | 1984-11-28 | Oreal | CLEANSING AND FOAMING COMPOSITION BASED ON NON-IONIC SURFACTANTS AND ANIONIC POLYMERS |
| US4488981A (en) * | 1983-09-06 | 1984-12-18 | A. E. Staley Manufacturing Company | Lower alkyl glycosides to reduce viscosity in aqueous liquid detergents |
| GB2166153A (en) * | 1984-10-25 | 1986-04-30 | Procter & Gamble | No-rinse hard surface cleaning composition |
-
1987
- 1987-07-21 EP EP87110532A patent/EP0300070B2/en not_active Expired - Lifetime
- 1987-07-21 ES ES198787110532T patent/ES2031094T3/en not_active Expired - Lifetime
- 1987-07-21 DE DE8787110532T patent/DE3779121D1/en not_active Expired - Lifetime
- 1987-07-21 AT AT87110532T patent/ATE75960T1/en not_active IP Right Cessation
-
1992
- 1992-05-14 GR GR920400803T patent/GR3004598T3/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19708733B4 (en) * | 1997-03-04 | 2007-05-31 | Cognis Ip Management Gmbh | Liquid foam extinguishing agent based on water |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE75960T1 (en) | 1992-05-15 |
| EP0300070B1 (en) | 1992-05-13 |
| DE3779121D1 (en) | 1992-06-17 |
| GR3004598T3 (en) | 1993-04-28 |
| ES2031094T3 (en) | 1992-12-01 |
| EP0300070A1 (en) | 1989-01-25 |
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