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EP1655362A1 - Soot cleaner - Google Patents

Soot cleaner Download PDF

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Publication number
EP1655362A1
EP1655362A1 EP05023233A EP05023233A EP1655362A1 EP 1655362 A1 EP1655362 A1 EP 1655362A1 EP 05023233 A EP05023233 A EP 05023233A EP 05023233 A EP05023233 A EP 05023233A EP 1655362 A1 EP1655362 A1 EP 1655362A1
Authority
EP
European Patent Office
Prior art keywords
weight
soot
cleaning
water
soluble polymeric
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.)
Withdrawn
Application number
EP05023233A
Other languages
German (de)
French (fr)
Inventor
Thomas Dr. Klein
Harry-Guenther Dr. Müller
Fred Ebert
Ralf Dr. Moritz
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.)
Lanxess Deutschland GmbH
Original Assignee
Lanxess Deutschland 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 Lanxess Deutschland GmbH filed Critical Lanxess Deutschland GmbH
Publication of EP1655362A1 publication Critical patent/EP1655362A1/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3719—Polyamides or polyimides
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0057—Oven-cleaning compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/33—Amino carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces

Definitions

  • the present invention relates to cleaning agents, preferably as powders, pastes or as an aqueous formulation, based on a water-soluble polymeric polycarboxylate as a dispersant for cleaning sooty surfaces.
  • Carbon black is a black powder consisting of 80-99.5% carbon, which is made up of tiny, spherical particles that grow together to form chain-like aggregates.
  • the specific surface area is about 10-1000 m 2 / g.
  • Soot is an important technical product resulting from the incomplete combustion or pyrolysis of hydrocarbons. The most important manufacturing process is the Furnace process. In this process, aromatic-rich soot oils (coal tar and petroleum products) are injected into a gas flame of 1200-1800 ° C.
  • Carbon black is more than 90% used as a filler in the rubber industry and also as a pigment for printing inks, inks, paints and in the electrical industry. Carbon black also occurs as the most undesirable product in uncontrolled combustion processes and then usually contains adsorbed on its surface oily components and pyrolysis. This soot has shown in animal experiments a potential for the production of cancer, reinforced by the frequently present polycyclic aromatics.
  • soot is also produced on a daily basis by combustion of fuels, preferably of heating oils, diesel fuels, gasolines, fats or the like.
  • water-soluble polymeric polycarboxylates preferably polyaspartic acids
  • EP-A 1 149 143 describes hard surface cleaning compositions containing a combination of alkaline medium soluble polymer compounds and nonionic surfactants for machine cleaning of floors.
  • the object of the present invention was therefore to provide a cleaning agent for removing soot from surfaces.
  • Surfaces in the sense of the present invention may be solid but also soft surfaces.
  • Polyaspartic acids are preferably polyaspartic acid homopolymers and their salts, as described in WO 96/31 554. However, it is also possible to use polyaspartic acids which are prepared by other processes of the prior art, for example EP-A 0 677 080.
  • the sodium salt and the ammonium salt of the polyaspartic acids are used as biodegradable and ecologically harmless substances.
  • all other salts and all water-soluble copolymers of polyaspartic acids and their salts can be used.
  • the anhydride of polyaspartic acids polysuccinimide (PSI) can be used.
  • the aforementioned polyaspartic acids and / or their derivatives are contained individually or in admixture in amounts of at least 1% by weight and at most 50% by weight in the soot cleaner.
  • the sodium salt of polyaspartic acid can be used in amounts of between 2 and 12% by weight in the cleansing compositions according to the invention.
  • the inventive carbon black cleaners additionally contain at least one surfactant or emulsifier and / or at least one chelating agent.
  • Suitable surfactants for the compositions according to the invention in addition to conventional soaps, in particular synthetic surfactants from the classes of anionic and nonionic surfactants.
  • particularly suitable surfactants are sodium alkanesulfonates and ethoxylated fatty alcohols.
  • the agents according to the invention contain as a characterizing constituent at least one water-soluble polymeric polycarboxylate, preferably polyaspartic acids.
  • compositions according to the invention may contain cosurfactants, alkalizing agents, alkaline complexing agents, water-miscible organic solvents, cleaning-active salts, stabilizers and other customary additives.
  • Suitable anionic co-surfactants in particular C 8 -C 22 -Alkalisulfonate, C 8 -C 22 alkylbenzenesulfonates, C 8 -C 22 alkyl sulfates, C 8 -C 22 -Fettklareestersulfonate, C 8 -C 22 fatty alcohol ether sulfates, fatty acid soaps or mixtures thereof can be used become.
  • Anionic cosurfactants can be added in an amount of up to 3% by weight, preferably from 0.5 to 1% by weight, based on the finished agent.
  • nonionic cosurfactants examples include the adducts of 13 to 40 moles of ethylene oxide with C 8 -C 22 -alcohols or with from 1 to 40 moles of ethylene oxide with C 8 -C 22 -alkylphenols and the alkylpolyglycosides.
  • the nonionic cosurfactants can be used in an amount of up to 8% by weight, in particular up to 6% by weight and more preferably up to 2% by weight, based on the finished carbon black cleaner.
  • the soot cleaners according to the invention can be present as so-called normal products, as concentrates and as pastes, it being known to the person skilled in the art that the transitions between these products are fluid.
  • Normal products are usually liquid and are solutions of their ingredients.
  • the so-called concentrates are solutions or emulsions of the ingredients and have a liquid to viscous consistency.
  • surfactants may usually be present in an amount of up to 35% by weight, in concentrates up to 65% by weight, and in pastes in an amount of up to 90% by weight.
  • the third possible embodiment represents the pastes, which can be dosed via suitable equipment.
  • the pastes contain the active ingredients in an amount of up to 95% by weight. Additives and solvents are preferably omitted in pastes.
  • the soot scavengers contain complexing agents capable of counteracting extreme water hardness impairments upon registration of the agents.
  • complexing agents are pentasodium triphosphate, trisodium citrate, sodium gluconate, tetrasodium ethylenediaminetetraacetate (EDTA-Na), pentasodium diethylenetriamine pentaacetate (DTPA-Na), tetrasodium 1,3-propylenediaminetetraacetate (1,3-PDTA-Na).
  • IDS imidodisuccinic acid
  • NTA nitrilotriacetic acid
  • beta-ADA beta-alaninediacetic acid
  • MGDA methylglycine diacetic acid
  • EDDS ethylenediamine disuccinic acid
  • HEIDA 2-hydroxyethyleneiminodiacetic acid
  • IDS, NTA-Na and / or sodium gluconate are used.
  • the complexing agents can be used in an amount of up to 15% by weight, preferably 0.5 to 12 wt .-%, based on the finished composition, are used. If the agent contains phosphates, the amount of complexing agents may be lower.
  • water-miscible organic solvents may be present, with good fat-soluble solvents being preferred.
  • suitable solvents are mono- and dialcohols, ether alcohols and polyethers.
  • Typical representatives may be called isopropanol, butyl glycol, ethylene glycol monophenyl ether, dimethyl diglycol and methyl pyrrolidone.
  • lower ether alcohols for example mono- or Diethylenmonoalkylether be used with 1 to 4 carbon atoms in the alkyl group.
  • the content of organic solvents is not more than 30 wt .-%, preferably not more than 20 wt .-% and in particular between 0.5 and 10 wt .-%, based on the finished composition.
  • the performance of the soot cleaners according to the invention can be increased by adding further alkaline salts, e.g. Polyphosphates and pyrophosphates, especially sodium tripolyphosphate or tetrapotassium pyrophosphate.
  • alkali metal hydroxides such as potassium hydroxide or sodium hydroxide can be used.
  • These salts are preferably used in an amount of 2 to 8 wt .-%, but at most 15 wt .-%, based on the finished composition.
  • solubilizers such as e.g. Cumene sulfonate, octyl sulfate, toluenesulfonate, xylenesulfonate or urea included.
  • the solubilizers may be present in the inventive carbon black cleaner in amounts of up to 10% by weight, in particular from 1 to 6% by weight, based in each case on the finished carbon black cleaning agent.
  • fatty acid soaps have solubilizing properties. If the soot cleaning agent contains soap, therefore, the amount of solubilizer can usually be very low.
  • the carbon black cleaning agents according to the invention may also contain inorganic neutral salts, dyes and fragrances, thickeners and corrosion inhibitors and optionally disinfectants.
  • the amount of the additives is preferably not more than 5 wt .-%, preferably not more than 2 wt .-% and in particular from 0.05 to 1 wt .-%, based on the finished soot cleaning agent.
  • Other auxiliaries customary in detergents for industrial purposes may likewise be present, provided they do not impair the effect according to the invention.
  • the composition contains 5 to 30% by weight of polyaspartic acid, 2 to 45% by weight of complexing agent, 0.1 to 10% by weight of further nonionic emulsifiers or surfactants, 0.1 to 10% by weight % anionic surfactants, 0.1 to 10% by weight of alkalizing agent, 0.1 to 5% by weight of alkaline-reacting complexing agents, 0.1 to 30% by weight of water-miscible organic solvents and 0.1 to 8% by weight of further additives, such as dissolving agents Thickeners, dyes and fragrances.
  • the Russrillian invention also showed very good effect on soiling, which in addition to soot also contained additional ash, as they occur for example in oil or coal combustion boilers.
  • Another object of the present invention relates to the use of the above-described soot cleaner for cleaning hard surfaces, in particular of tunnel cladding, street signs, signal systems, heating systems, engines, glass panes, bodies, particulate filters or house facades.
  • Yet another object of the present invention relates to a method for machine cleaning of surfaces by cleaning the surfaces in a manner known per se with cleaning machines using the soot cleaner according to the invention.
  • Baypure® DS 100/40% (polyaspartic acid) 30% by weight Baypure® CX 100/34% (iminodisuccinic acid) 3% by weight Emulsifier L30 2% by weight butyglycol 1% by weight Water (deionized) 64% by weight
  • Baypure® DS 100/40 2.5% by weight Baypure® CX 100/34% 12% by weight Potassium hydroxide (50%) 0.6% by weight Metasilicate 9 hydrate 4.9% by weight Sulfetal 4105 (fatty alcohol sulfate) 4.0% by weight Complete 1008/85 (alkyl polyethylene glycol ether) 2.0% by weight Phosfetal 201 (phosphoric acid ester) 2.0% by weight butyglycol 5.0% by weight Water (deionized) 67.0% by weight
  • the detergent formulations of the invention surprisingly show excellent cleaning power on sooted surfaces.
  • carbon black is charged neutrally and forms accompanying components with so-called lubricating films. But just here convince the soot cleaner according to the present invention.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

Use of water-soluble polymer polycarboxylate (I) for the cleaning of sooted surfaces. Independent claims are also included for: (1) the method for the cleaning of sooted surfaces comprising using (I); and (2) a soot cleaner comprising (I) (preferably polyasparaginic acid).

Description

Die vorliegende Erfindung betrifft Reinigungsmittel, bevorzugt als Pulver, Pasten oder als wässrige Formulierung, auf Basis eines wasserlöslichen polymeren Polycarboxylats als Dispergiermittel zur Reinigung verrußter Oberflächen.The present invention relates to cleaning agents, preferably as powders, pastes or as an aqueous formulation, based on a water-soluble polymeric polycarboxylate as a dispersant for cleaning sooty surfaces.

Ruß, ist ein schwarzes, zu 80-99,5 % aus Kohlenstoff bestehendes Pulver, das aus kleinsten, kugelförmigen Teilchen aufgebaut ist, die zu kettenförmigen Aggregaten zusammenwachsen. Die spezifische Oberfläche beträgt etwa 10-1000 m2/g. Ruß ist ein wichtiges technisches Produkt, das bei der unvollständigen Verbrennung oder Pyrolyse von Kohlenwasserstoffen entsteht. Das wichtigste Herstellverfahren ist der Furnace-Prozess. Bei diesem Verfahren werden aromatenreiche Rußöle (Steinkohlenteer- und Erdölprodukte) in eine Gasflamme von 1200-1800°C eingedüst. Ruß wird zu über 90 % als Füllstoff in der Gummiindustrie, außerdem als Pigment für Druckfarben, Tuschen, Lacke und in der Elektroindustrie verwendet. Ruß tritt auch als meist unerwünschtes Produkt bei unkontrollierten Verbrennungsvorgängen auf und enthält dann meist an seiner Oberfläche adsorbierte ölige Bestandteile und Pyrolyseprodukte. Dieser Ruß hat im Tierversuch ein Krebs erzeugendes Potenzial gezeigt, verstärkt durch die häufig anwesenden polyzyklischen Aromaten.Carbon black is a black powder consisting of 80-99.5% carbon, which is made up of tiny, spherical particles that grow together to form chain-like aggregates. The specific surface area is about 10-1000 m 2 / g. Soot is an important technical product resulting from the incomplete combustion or pyrolysis of hydrocarbons. The most important manufacturing process is the Furnace process. In this process, aromatic-rich soot oils (coal tar and petroleum products) are injected into a gas flame of 1200-1800 ° C. Carbon black is more than 90% used as a filler in the rubber industry and also as a pigment for printing inks, inks, paints and in the electrical industry. Carbon black also occurs as the most undesirable product in uncontrolled combustion processes and then usually contains adsorbed on its surface oily components and pyrolysis. This soot has shown in animal experiments a potential for the production of cancer, reinforced by the frequently present polycyclic aromatics.

Ruß entsteht aber auch tagtäglich durch Abbrand von Kraftstoffen, bevorzugt von Heizölen, Dieselkraftstoffen, Benzinen, Fetten oder ähnlichem.However, soot is also produced on a daily basis by combustion of fuels, preferably of heating oils, diesel fuels, gasolines, fats or the like.

So führen gerade diese Abbrände von Kraftstoffen und Fetten zu einem oftmals festhaftenden Schmierfilm auf Oberflächen wie sie im Straßenverkehr beispielsweise auf Tunnelverkleidungen, Straßenschilder, Signalanlagen aber auch auf Heizungsanlagen, Motoren, in Rußfiltern, auf Windschutzscheiben oder auf Hausfassaden und im Haushalt vorkommen.Thus, just these burns of fuels and fats lead to an often sticky film on surfaces such as in road traffic, for example, on tunnel cladding, street signs, signal systems but also on heating systems, engines, soot filters, on windshields or on house facades and in the household.

Aus dem Stand der Technik ist der Einsatz von wasserlöslichen polymeren Polycarboxylaten, bevorzugt Polyasparaginsäuren, als Reinigungsmittel bekannt.The use of water-soluble polymeric polycarboxylates, preferably polyaspartic acids, as cleaning agents is known from the prior art.

EP-A 0 987 316 und EP-A 0 987 318 beschreiben die Verwendung von Polyasparaginsäuren in Reinigerformulierungen mit abrasiver Wirkung, wobei diese ähnlich dem Sandstrahlverfahren im Rahmen einer Wasser-Druckstrahl-Reinigung auf die zu reinigende feste Oberfläche aufgebracht werden.EP-A 0 987 316 and EP-A 0 987 318 describe the use of polyaspartic acids in detergent formulations having an abrasive action, which are applied to the solid surface to be cleaned in a manner similar to the sandblasting process in the context of a water-pressure jet cleaning.

EP-A 1 149 143 beschreibt Mittel zum Reinigen harter Oberflächen, die eine Kombination aus im alkalischen Medium löslichen Polymerverbindungen und nichtionischen Tensiden enthalten, zur maschinellen Reinigung von Fußböden.EP-A 1 149 143 describes hard surface cleaning compositions containing a combination of alkaline medium soluble polymer compounds and nonionic surfactants for machine cleaning of floors.

Die Reinigung verrußter Oberflächen, insbesondere wenn diese mit einem Schmierfilm aus Ruß und den beim Abbrand von Kraftstoffen zwangsläufig anfallenden polycyclischen Aromaten verschmutzt sind, wurde bisher nicht berücksichtigt.The cleaning of sooted surfaces, especially if they are soiled with a lubricating film of soot and inevitably resulting in the combustion of fuels polycyclic aromatics, has not been considered.

Aufgabe der vorliegenden Erfindung war es deshalb, ein Reinigungsmittel zur Rußentfernung von Oberflächen zur Verfügung zu stellen. Oberflächen im Sinne der vorliegenden Erfindung können feste aber auch weiche Oberflächen sein.The object of the present invention was therefore to provide a cleaning agent for removing soot from surfaces. Surfaces in the sense of the present invention may be solid but also soft surfaces.

Erfindungsgemäß wird die Aufgabe durch den Einsatz wasserlöslicher polymerer Polycarboxylate, bevorzugt Polyasparaginsäure und/oder deren Salze gelöst.According to the invention, the object is achieved by the use of water-soluble polymeric polycarboxylates, preferably polyaspartic acid and / or salts thereof.

Als Polyasparaginsäuren kommen bevorzugt Polyasparaginsäure-Homopolymere und ihre Salze in Betracht, wie sie in der WO 96/31 554 beschrieben werden. Es können aber auch Polyasparaginsäuren eingesetzt werden, die nach anderen Verfahren des Standes der Technik hergestellt werden, beispielsweise EP-A 0 677 080. Vorzugsweise werden das Natriumsalz und das Ammoniumsalz der Polyasparaginsäuren als biologisch abbaubare und ökologisch unbedenkliche Stoffe verwendet. Selbstverständlich können auch alle anderen Salze und alle wasserlöslichen Copolymere der Polyasparaginsäuren und ihrer Salze eingesetzt werden. Ebenso kann das Anhydrid der Polyasparaginsäuren, Polysuccinimid (PSI) verwendet werden.Polyaspartic acids are preferably polyaspartic acid homopolymers and their salts, as described in WO 96/31 554. However, it is also possible to use polyaspartic acids which are prepared by other processes of the prior art, for example EP-A 0 677 080. Preferably, the sodium salt and the ammonium salt of the polyaspartic acids are used as biodegradable and ecologically harmless substances. Of course, all other salts and all water-soluble copolymers of polyaspartic acids and their salts can be used. Likewise, the anhydride of polyaspartic acids, polysuccinimide (PSI) can be used.

Die vorstehend genannten Polyasparaginsäuren und/oder ihre Derivate sind einzeln oder in Mischung in Mengen von wenigstens 1 Gew.-% und höchstens 50 Gew.-% im Rußreiniger enthalten.The aforementioned polyaspartic acids and / or their derivatives are contained individually or in admixture in amounts of at least 1% by weight and at most 50% by weight in the soot cleaner.

Das Natriumsalz der Polyasparaginsäure kann in Mengen zwischen 2 und 12 Gew.-% in den erfindungsgemäßen Reinigungsmitteln verwendet werden.The sodium salt of polyaspartic acid can be used in amounts of between 2 and 12% by weight in the cleansing compositions according to the invention.

In einer bevorzugten Ausführungsform enthalten die erfindungsgemäßen Rußreiniger zusätzlich noch wenigstens ein Tensid bzw. Emulgator und/oder wenigstens einen Chelatbildner.In a preferred embodiment, the inventive carbon black cleaners additionally contain at least one surfactant or emulsifier and / or at least one chelating agent.

Als Tenside eignen sich für die erfindungsgemäßen Mittel neben üblichen Seifen insbesondere synthetische Tenside aus den Klassen der anionischen und der nichtionischen Tenside. Beispiele besonders geeigneter Tenside sind Natriumalkansulfonate und ethoxylierte Fettalkohole.Suitable surfactants for the compositions according to the invention in addition to conventional soaps, in particular synthetic surfactants from the classes of anionic and nonionic surfactants. Examples of particularly suitable surfactants are sodium alkanesulfonates and ethoxylated fatty alcohols.

Die vorstehend genannten Dispergiermittel, Chelatbildner und Tenside sind einzeln oder in Mischung in Mengen von wenigstens 1 Gew.-% enthalten. In jedem Fall enthalten die erfindungsgemäßen Mittel als kennzeichnenden Bestandteil wenigstens ein wasserlösliches polymeres Polycarboxylat, bevorzugt Polyasparaginsäuren.The aforesaid dispersants, chelating agents and surfactants are contained singly or in admixture in amounts of at least 1% by weight. In any case, the agents according to the invention contain as a characterizing constituent at least one water-soluble polymeric polycarboxylate, preferably polyaspartic acids.

Neben den Tensiden können die erfindungsgemäßen Mittel Cotenside, Alkalisierungsmittel, alkalisch reagierende Komplexbildner, mit Wasser mischbare organische Lösungsmittel, reinigungsaktive Salze, Stabilisierungsmittel sowie weitere übliche Zusatzstoffe enthalten.In addition to the surfactants, the compositions according to the invention may contain cosurfactants, alkalizing agents, alkaline complexing agents, water-miscible organic solvents, cleaning-active salts, stabilizers and other customary additives.

Als anionische Cotenside können insbesondere C8-C22-Alkalisulfonate, C8-C22-Alkylbenzolsulfonate, C8-C22-Alkylsulfate, C8-C22-Fettsäureestersulfonate, C8-C22-Fettalkoholethersulfate, Fettsäureseifen oder deren Mischungen eingesetzt werden. Anionische Cotenside können in einer Menge bis zu 3 Gew.-%, vorzugsweise von 0,5 bis 1 Gew.-%, bezogen auf das fertige Mittel, zugesetzt werden.Suitable anionic co-surfactants, in particular C 8 -C 22 -Alkalisulfonate, C 8 -C 22 alkylbenzenesulfonates, C 8 -C 22 alkyl sulfates, C 8 -C 22 -Fettsäureestersulfonate, C 8 -C 22 fatty alcohol ether sulfates, fatty acid soaps or mixtures thereof can be used become. Anionic cosurfactants can be added in an amount of up to 3% by weight, preferably from 0.5 to 1% by weight, based on the finished agent.

Als nichtionische Cotenside können beispielsweise die Addukte von 13 bis 40 Mol Ethylenoxid an C8-C22-Alkohole oder von 1 bis 40 Mol Ethylenoxid an C8-C22-Alkylphenole und die Alkylpolyglycoside genannt werden. Die nichtionischen Cotenside können in einer Menge bis zu 8 Gew.-%, insbesondere bis zu 6 Gew.-% und besonders bevorzugt bis zu 2 Gew.-%, bezogen auf den fertigen Rußreiniger, eingesetzt werden.Examples of nonionic cosurfactants which may be mentioned are the adducts of 13 to 40 moles of ethylene oxide with C 8 -C 22 -alcohols or with from 1 to 40 moles of ethylene oxide with C 8 -C 22 -alkylphenols and the alkylpolyglycosides. The nonionic cosurfactants can be used in an amount of up to 8% by weight, in particular up to 6% by weight and more preferably up to 2% by weight, based on the finished carbon black cleaner.

Die erfindungsgemäßen Rußreiniger können als sogenannte Normalprodukte, als Konzentrate und als Pasten vorliegen, wobei dem Fachmann bekannt ist, dass die Übergänge zwischen diesen Produkten fließend sind. Normalprodukte sind in der Regel flüssig und stellen Lösungen ihrer Inhaltsstoffe dar. Die sogenannten Konzentrate sind Lösungen oder Emulsionen der Inhaltsstoffe und weisen eine flüssige bis dickflüssige Konsistenz auf. In Normalprodukten können Tenside üblicherweise in einer Menge bis zu 35 Gew.-%, in Konzentraten bis zu 65 Gew.-% und in Pasten in einer Menge bis zu 90 Gew.-% enthalten sein. Die dritte mögliche Ausführungsform stellen die Pasten dar, die über geeignete Geräte dosiert werden können. Die Pasten enthalten die aktiven Inhaltsstoffe in einer Menge bis zu 95 Gew.-%. Auf Zusatzstoffe und Lösungsmittel wird in Pasten vorzugsweise verzichtet.The soot cleaners according to the invention can be present as so-called normal products, as concentrates and as pastes, it being known to the person skilled in the art that the transitions between these products are fluid. Normal products are usually liquid and are solutions of their ingredients. The so-called concentrates are solutions or emulsions of the ingredients and have a liquid to viscous consistency. In normal products, surfactants may usually be present in an amount of up to 35% by weight, in concentrates up to 65% by weight, and in pastes in an amount of up to 90% by weight. The third possible embodiment represents the pastes, which can be dosed via suitable equipment. The pastes contain the active ingredients in an amount of up to 95% by weight. Additives and solvents are preferably omitted in pastes.

In einer bevorzugten Ausführungsform enthalten die Rußreiniger Komplexbildner, die in der Lage sind, Beeinträchtigungen durch eine extreme Wasserhärte bei der Anmeldung der Mittel auszugleichen. Geeignete Komplexbildner sind insbesondere Pentanatriumtriphosphat, Trinatriumcitrat, Natriumgluconat, Tetranatriumethylendiamintetraacetat (EDTA-Na), Pentanatriumdiethylentriaminpentaacetat (DTPA-Na), Tetranatrium-1,3-Proylendiamintetraacetat (1,3-PDTA-Na). Aufgrund ihrer guten biologischen Abbaubarkeit finden auch Produkte auf Basis von Iminodibernsteinsäure (IDS), Nitrilotriessigsäure (NTA-), oder beta-Alanindiessigsäure (beta-ADA), Methylglycindiessigsäure (MGDA), Ethylendiamindibernsteinsäure (EDDS) und 2-Hydroxyethyleniminodiessigsäure (HEIDA) in Form ihrer freien Säuren, als entsprechende Natriumsalze oder als Ammoniumsalze Verwendung. Vorzugsweise werden IDS, NTA-Na und/oder Natriumgluconat verwendet. Die Komplexbildner können in einer Menge bis zu 15 Gew.-%, vorzugsweise 0,5 bis 12 Gew.-%, bezogen auf das fertige Mittel, eingesetzt werden. Enthält das Mittel Phosphate, so kann die Menge an Komplexbildnern geringer sein.In a preferred embodiment, the soot scavengers contain complexing agents capable of counteracting extreme water hardness impairments upon registration of the agents. Particularly suitable complexing agents are pentasodium triphosphate, trisodium citrate, sodium gluconate, tetrasodium ethylenediaminetetraacetate (EDTA-Na), pentasodium diethylenetriamine pentaacetate (DTPA-Na), tetrasodium 1,3-propylenediaminetetraacetate (1,3-PDTA-Na). Due to their good biodegradability, products based on imidodisuccinic acid (IDS), nitrilotriacetic acid (NTA), or beta-alaninediacetic acid (beta-ADA), methylglycine diacetic acid (MGDA), ethylenediamine disuccinic acid (EDDS) and 2-hydroxyethyleneiminodiacetic acid (HEIDA) are also in the form their free acids, as corresponding sodium salts or as ammonium salts use. Preferably, IDS, NTA-Na and / or sodium gluconate are used. The complexing agents can be used in an amount of up to 15% by weight, preferably 0.5 to 12 wt .-%, based on the finished composition, are used. If the agent contains phosphates, the amount of complexing agents may be lower.

Zur Verstärkung der Reinigungskraft können mit Wasser mischbare organische Lösungsmittel enthalten sein, wobei gut fettlösliche Lösungsmittel bevorzugt werden. Beispiele für geeignete Lösungsmittel sind Mono- und Dialkohole, Etheralkohole und Polyether.To enhance the cleaning power, water-miscible organic solvents may be present, with good fat-soluble solvents being preferred. Examples of suitable solvents are mono- and dialcohols, ether alcohols and polyethers.

Typische Vertreter können Isopropanol, Butylglykol, Ethylenglykolmonophenylether, Dimethyldiglykol und Methylpyrrolidon genannt werden. Vorzugsweise werden niedere Etheralkohole, beispielsweise Mono- oder Diethylenmonoalkylether mit 1 bis 4 Kohlenstoffatomen in der Alkylgruppe eingesetzt. Der Gehalt organischer Lösungsmittel liegt nicht über 30 Gew.-%, vorzugsweise nicht über 20 Gew.-% und insbesondere zwischen 0,5 und 10 Gew.-%, bezogen auf das fertige Mittel.Typical representatives may be called isopropanol, butyl glycol, ethylene glycol monophenyl ether, dimethyl diglycol and methyl pyrrolidone. Preferably, lower ether alcohols, for example mono- or Diethylenmonoalkylether be used with 1 to 4 carbon atoms in the alkyl group. The content of organic solvents is not more than 30 wt .-%, preferably not more than 20 wt .-% and in particular between 0.5 and 10 wt .-%, based on the finished composition.

Neben den als Alkalisierungsmitteln genannten Verbindungen kann die Leistung der erfindungsgemäßen Rußreiniger durch Zusatz von weiteren alkalisch reagierenden Salzen gesteigert werden, wie z.B. Polyphosphate und Pyrophosphaten, insbesondere Natriumtripolyphosphat oder Tetrakaliumpyrophosphat. Aber auch Alkalihydroxide wie Kaliumhydroxid oder Natriumhydroxid können eingesetzt werden. Diese Salze werden vorzugsweise in einer Menge von 2 bis 8 Gew.-%, höchstens jedoch 15 Gew.-%, bezogen auf das fertige Mittel, eingesetzt.In addition to the compounds mentioned as alkalizing agents, the performance of the soot cleaners according to the invention can be increased by adding further alkaline salts, e.g. Polyphosphates and pyrophosphates, especially sodium tripolyphosphate or tetrapotassium pyrophosphate. But also alkali metal hydroxides such as potassium hydroxide or sodium hydroxide can be used. These salts are preferably used in an amount of 2 to 8 wt .-%, but at most 15 wt .-%, based on the finished composition.

Zur Stabilisierung der einzelnen Komponenten in den erfindungsgemäßen Rußreinigern können diese Lösevermittler, wie z.B. Cumolsulfonat, Octylsulfat, Toluolsulfonat, Xylolsulfonat oder Harnstoff enthalten. Die Lösevermittler können im erfindungsgemäßen Rußreiniger in Mengen bis zu 10 Gew.-%, insbesondere 1 bis 6 Gew.-%, jeweils bezogen auf das fertige Rußreinigungsmittel, enthalten sein. Auch Fettsäureseifen haben lösevermittelnde Eigenschaften. Enthält das Rußreinigungsmittel Seife, kann deshalb die Menge an Lösevermittler meist sehr gering sein.To stabilize the individual components in the novel carbon black cleaners, these solubilizers, such as e.g. Cumene sulfonate, octyl sulfate, toluenesulfonate, xylenesulfonate or urea included. The solubilizers may be present in the inventive carbon black cleaner in amounts of up to 10% by weight, in particular from 1 to 6% by weight, based in each case on the finished carbon black cleaning agent. Also, fatty acid soaps have solubilizing properties. If the soot cleaning agent contains soap, therefore, the amount of solubilizer can usually be very low.

Als weitere fakultative Bestandteile können die erfindungsgemäßen Rußreinigungsmittel auch anorganische Neutralsalze, Farb- und Duftstoffe, Verdicker und Korrosionsinhibitoren sowie gegebenenfalls Desinfektionsmittel enthalten sein. Die Menge der Zusatzstoffe beträgt vorzugsweise nicht mehr als 5 Gew.-%, vorzugsweise nicht mehr als 2 Gew.-% und insbesondere von 0,05 bis 1 Gew.-%, bezogen auf das fertige Rußreinigungsmittel. Weitere, in Reinigungsmitteln für gewerbliche Zwecke übliche Hilfsstoffe können ebenfalls enthalten sein, sofern sie die erfindungsgemäße Wirkung nicht beeinträchtigen.As further optional constituents, the carbon black cleaning agents according to the invention may also contain inorganic neutral salts, dyes and fragrances, thickeners and corrosion inhibitors and optionally disinfectants. The amount of the additives is preferably not more than 5 wt .-%, preferably not more than 2 wt .-% and in particular from 0.05 to 1 wt .-%, based on the finished soot cleaning agent. Other auxiliaries customary in detergents for industrial purposes may likewise be present, provided they do not impair the effect according to the invention.

In einer möglichen Ausführungsform der vorliegenden Erfindung enthält das Mittel 5 bis 30 Gew.-% Polyasparaginsäure, 2 bis 45 Gew.-% Komplexbildner, 0,1 bis 10 Gew.-% weitere nichtionische Emulgatoren bzw. Tenside, 0,1 bis 10 Gew.-% anionische Tenside, 0,1 bis 10 Gew.-% Alkalisierungsmittel, 0,1 bis zu 5 Gew.-% alkalisch reagierende Komplexbildner, 0,1 bis 30 Gew.-% mit Wasser mischbare organische Lösungsmittel und 0,1 bis 8 Gew.-% weitere Zusatzstoffe, wie Lösevermittler, Verdicker, Farb- und Duftstoffe.In one possible embodiment of the present invention, the composition contains 5 to 30% by weight of polyaspartic acid, 2 to 45% by weight of complexing agent, 0.1 to 10% by weight of further nonionic emulsifiers or surfactants, 0.1 to 10% by weight % anionic surfactants, 0.1 to 10% by weight of alkalizing agent, 0.1 to 5% by weight of alkaline-reacting complexing agents, 0.1 to 30% by weight of water-miscible organic solvents and 0.1 to 8% by weight of further additives, such as dissolving agents Thickeners, dyes and fragrances.

In Reinigungsversuchen zeigten die erfindungsgemäßen Russreiniger ebenfalls sehr gute Wirkung an Verschmutzungen, die neben Ruß noch zusätzlich Asche enthielten, wie sie beispielsweise in Öl- oder Kohle-Verbrennungskesseln auftreten.In cleaning tests, the Russreiniger invention also showed very good effect on soiling, which in addition to soot also contained additional ash, as they occur for example in oil or coal combustion boilers.

Ein weiterer Gegenstand der vorliegenden Erfindung betrifft die Verwendung der voranstehend beschriebenen Rußreiniger zur Reinigung von harten Oberflächen, insbesondere von Tunnelverkleidungen, Straßenschildern, Signalanlagen, Heizungsanlagen, Motoren, Glasscheiben, Karosserien, Rußpartikelfiltern oder Hausfassaden.Another object of the present invention relates to the use of the above-described soot cleaner for cleaning hard surfaces, in particular of tunnel cladding, street signs, signal systems, heating systems, engines, glass panes, bodies, particulate filters or house facades.

Noch ein weiterer Gegenstand der vorliegenden Erfindung betrifft ein Verfahren zur maschinellen Reinigung von Oberflächen, indem die Oberflächen in an sich bekannter Weise mit Reinigungsmaschinen unter Verwendung der erfindungsgemäßen Rußreiniger gereinigt werden.Yet another object of the present invention relates to a method for machine cleaning of surfaces by cleaning the surfaces in a manner known per se with cleaning machines using the soot cleaner according to the invention.

BeispieleExamples Beispiel 1example 1

Reinigung gegen Ruß an Fassasen und auf Tunnelverkleidungen Baypure® DS 100/40 % (Polyasparaginsäure) 30 Gew.-% Baypure® CX 100/34 % (Iminodibernsteinsäure) 3 Gew.-% Emulgator L30 2 Gew.-% Butylglycol 1 Gew.-% Wasser (entionisiert) 64 Gew.-% Cleaning against soot on barrels and on tunnel linings Baypure® DS 100/40% (polyaspartic acid) 30% by weight Baypure® CX 100/34% (iminodisuccinic acid) 3% by weight Emulsifier L30 2% by weight butyglycol 1% by weight Water (deionized) 64% by weight

Beispiel 2Example 2

Reinigung gegen Ruß am Motorblock Baypure® DS 100/40 2,5 Gew.-% Baypure® CX 100/34 % 12 Gew.-% Kaliumhydroxid (50 %) 0,6 Gew.-% Natriummetasilikat-9-hydrat 4,9 Gew.-% Sulfetal 4105 (Fettalkoholsulfat) 4,0 Gew.-% Zusolat 1008/85 (Alkylpolyethylenglycolether) 2,0 Gew.-% Phosfetal 201 (Phosphorsäureester) 2,0 Gew.-% Butylglycol 5,0 Gew.-% Wasser (entionsiert) 67,0 Gew.-% Cleaning against soot on the engine block Baypure® DS 100/40 2.5% by weight Baypure® CX 100/34% 12% by weight Potassium hydroxide (50%) 0.6% by weight Metasilicate 9 hydrate 4.9% by weight Sulfetal 4105 (fatty alcohol sulfate) 4.0% by weight Complete 1008/85 (alkyl polyethylene glycol ether) 2.0% by weight Phosfetal 201 (phosphoric acid ester) 2.0% by weight butyglycol 5.0% by weight Water (deionized) 67.0% by weight

Beispiel 3Example 3

Glasreiniger für Rußbeläge auf Glasscheiben Baypure® CX 100 5 Gew.-% Bayhibit® AM 3 Gew.-% Tegotens® B810 (Degussa AG, kationisches Tensid) 6,6 Gew.-% Tegotens® DO (Degussa AG, kationisches Tensid) 25 Gew.-% Monoethanolamin) 3 Gew.-% Wasser (entionisiert) 57,4 Gew.-% Glass cleaner for soot deposits on glass panes Baypure® CX 100 5% by weight Bayhibit® AM 3% by weight Tegotens® B810 (Degussa AG, cationic surfactant) 6.6% by weight Tegotens® DO (Degussa AG, cationic surfactant) 25% by weight Monoethanolamine) 3% by weight Water (deionized) 57.4% by weight

Beispiel 4Example 4

Ölkesselreiniger zur Anwendung gegen Ruß und Asche Baypure® DS 100/40 % 10 Gew.-% Baypure® CX 100/34 % 5 Gew.-% Emulgator L 30 5 Gew.-% Mersolat H 30 5 Gew.-% Wasser (entionisiert) 75 Gew.-% Oil boiler cleaner for use against soot and ash Baypure® DS 100/40% 10% by weight Baypure® CX 100/34% 5% by weight Emulsifier L 30 5% by weight Mersolat H 30 5% by weight Water (deionized) 75% by weight

Die erfindungsgemäßen Reinigerformulierungen zeigen überraschenderweise eine ausgezeichnete Reinigungskraft an verrußten Oberflächen. Im Gegensatz zu den Verschmutzungen die im Stand der Technik mittels wasserlöslicher polymerer Polycarboxylate gereinigt werden, ist Ruß neutral geladen und bildet mit Begleitkomponenten sogenannte Schmierfilme aus. Gerade aber hier überzeugen die Rußreiniger gemäß der vorliegenden Erfindung.The detergent formulations of the invention surprisingly show excellent cleaning power on sooted surfaces. In contrast to the soils which are purified in the prior art by means of water-soluble polymeric polycarboxylates, carbon black is charged neutrally and forms accompanying components with so-called lubricating films. But just here convince the soot cleaner according to the present invention.

Claims (10)

Verwendung von wasserlöslichen polymeren Polycarboxylaten zur Reinigung verrußter Oberflächen.Use of water-soluble polymeric polycarboxylates for cleaning sooted surfaces. Verwendung gemäß Anspruch 1, dadurch gekennzeichnet, dass als wasserlösliches polymeres Polycarboxylat Polyasparaginsäure eingesetzt wird.Use according to claim 1, characterized in that polyaspartic acid is used as the water-soluble polymeric polycarboxylate. Verwendung gemäß Anspruch 1, dadurch gekennzeichnet, dass zusätzlich ein Komplexiermittel, bevorzugt Produkte auf Basis von Iminodibernsteinsäure, eingesetzt wird.Use according to claim 1, characterized in that in addition a complexing agent, preferably products based on iminodisuccinic acid, is used. Verwendung gemäß den Ansprüchen 1 bis 3, dadurch gekennzeichnet, dass zusätzlich ein Emulgator bzw. Tensid eingesetzt wird.Use according to claims 1 to 3, characterized in that in addition an emulsifier or surfactant is used. Verfahren zur Reinigung verrußter Oberflächen, dadurch gekennzeichnet, dass wasserlösliche polymere Polycarboxylate eingesetzt werden.Process for cleaning sooted surfaces, characterized in that water-soluble polymeric polycarboxylates are used. Verfahren gemäß Anspruch 5, dadurch gekennzeichnet, dass die verrußten Oberflächen Tunnelverkleidungen, Straßenschilder, Signalanlagen, Heizungsanlagen, Motoren, Rußpartikelfilter, Glasscheiben, Karosserien oder Hausfassaden sind.A method according to claim 5, characterized in that the sooted surfaces are tunnel linings, street signs, signal systems, heating systems, engines, particulate filters, glass panes, bodies or house facades. Rußreiniger, dadurch gekennzeichnet, dass diese wasserlösliche polymere Polycarboxylate, bevorzugt Polyasparaginsäuren, enthalten.Soot cleaner, characterized in that it contains water-soluble polymeric polycarboxylates, preferably polyaspartic acids. Rußreiniger gemäß Anspruch 7, dadurch gekennzeichnet, dass diese zusätzlich Tenside bzw. Emulgatoren und/oder Komplexierungsmittel enthalten.Soot cleaner according to claim 7, characterized in that they additionally contain surfactants or emulsifiers and / or complexing agents. Rußreiniger gemäß Anspruch 8, dadurch gekennzeichnet, dass als Komplexierungsmittel Produkte auf Basis von Iminodibernsteinsäure eingesetzt werden.A soot cleaner according to claim 8, characterized in that products based on iminodisuccinic acid are used as the complexing agent. Rußreiniger gemäß der Ansprüche 7 bis 8, dadurch gekennzeichnet, dass diese auf Verschmutzungen aus Ruß und Asche angewendet werden.Soot cleaner according to claims 7 to 8, characterized in that they are applied to soiling of soot and ash.
EP05023233A 2004-11-03 2005-10-25 Soot cleaner Withdrawn EP1655362A1 (en)

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AU2005225021A1 (en) 2006-05-18
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