EP0206222A2 - Alkaline detergent - Google Patents

Alkaline detergent Download PDF

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Publication number
EP0206222A2
EP0206222A2 EP86108247A EP86108247A EP0206222A2 EP 0206222 A2 EP0206222 A2 EP 0206222A2 EP 86108247 A EP86108247 A EP 86108247A EP 86108247 A EP86108247 A EP 86108247A EP 0206222 A2 EP0206222 A2 EP 0206222A2
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EP
European Patent Office
Prior art keywords
weight
parts
component
cleaner according
alkali
Prior art date
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EP86108247A
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German (de)
French (fr)
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EP0206222A3 (en
Inventor
Peter F. King
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.)
Henkel Corp
Original Assignee
Henkel Corp
Parker Chemical Co
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Filing date
Publication date
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Publication of EP0206222A2 publication Critical patent/EP0206222A2/en
Publication of EP0206222A3 publication Critical patent/EP0206222A3/en
Withdrawn legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/14Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
    • C23G1/19Iron or steel
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66Non-ionic compounds
    • C11D1/72Ethers of polyoxyalkylene glycols
    • C11D1/721End blocked ethers
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66Non-ionic compounds
    • C11D1/825Mixtures of compounds all of which are non-ionic
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/04Water-soluble compounds
    • C11D3/06Phosphates, including polyphosphates
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/04Water-soluble compounds
    • C11D3/08Silicates
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/14Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
    • C23G1/20Other heavy metals
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66Non-ionic compounds
    • C11D1/72Ethers of polyoxyalkylene glycols

Definitions

  • the invention relates to an alkaline cleaner with a content of silicate, phosphate, complexing agent and surfactant and its application to the cleaning of metal surfaces.
  • Sheets made of iron materials black plate or tinned iron materials (tin plate) are used, among other things. used for the production of containers such as cans, etc. Such materials are usually provided with a protective oil to protect them from wear and / or corrosion. There may also be lubricants on the sheet to facilitate deformation, which are advantageous for protecting the surfaces but must be removed before the container is used.
  • Such protective or lubricant layers are usually removed using cleaners.
  • cleaners for example, US Pat. No. 4,382,825 describes an alkaline cleaner for containers drawn and smoothed from black plate, which contains alkali metal silicate, orthosilicate or mixtures thereof, and optionally alkali metal carbonate, alkali metal phosphate, a surfactant such as nonylphenol polyethoxyethanol and oxyethylated secondary alcohols.
  • Another example of an alkaline cleaner is described in U.S. Patent 4,349,448. Its subject is a low-foaming, low-foaming cleaner containing alkaline components, ethoxylated alkylphenol and ethoxylated / propoxylated alkylphenol.
  • cleaners Despite the existence of cleaners, there is still a need for improved, highly effective low-foaming cleaners, which can also be used in particular on continuously operating conveyor systems. In addition, they should lead to surfaces that are appealing on the outside and - in the form of containers - suitable for packaging food.
  • the object of the invention is to provide a cleaner that meets the above requirements.
  • it should be suitable for cleaning surfaces made of iron materials or tin-plated iron materials.
  • the alkali silicate component of the cleaner according to the invention is preferably an alkali metasilicate, in particular sodium metasilicate.
  • alkali silicates such as potassium orthosilicate, can be used.
  • the alkali phosphate component is preferably polyphosphate, especially sodium tripolyphosphate. Suitable compounds are also other condensed phosphates, such as sodium or potassium pyrophosphate.
  • Alkali metal gluconate in particular sodium gluconate, is preferably used as the complexing agent.
  • other complexing agents such as sodium citrate, ethylenediaminetetraacetic acid or the sodium salt thereof, can also be used.
  • the ethoxylated straight-chain alcohol should preferably have 8 to 18 carbon atoms in the alcohol group and 7 to 11 ethylene oxide groups.
  • a particularly suitable product is Tergitol 15-S-9 from Union Carbide.
  • the chloride derivative of the nonionic surfactant according to component e) is preferably represented by the following formula:
  • R is an alkyl group with 8 to 18 C atoms, a phenyl or naphthyl group optionally substituted with 1 or 2 alkyl groups with 8 to 18 C atoms
  • R 1 is hydrogen or a methyl or ethyl group.
  • n is other alkali silicates, such as potassium orthosilicate, can be used.
  • the alkali phosphate component is preferably polyphosphate, especially sodium tripolyphosphate. Suitable compounds are also other condensed phosphates, such as sodium or potassium pyrophosphate.
  • Alkali metal gluconate in particular sodium gluconate, is preferably used as the complexing agent.
  • other complexing agents such as sodium citrate, ethylenediaminetetraacetic acid or the sodium salt thereof, can also be used.
  • the ethoxylated straight-chain alcohol should preferably have 8 to 18 carbon atoms in the alcohol group and 7 to 11 ethylene oxide groups.
  • a particularly suitable product is Tergitol 15-S-9 from Union Carbide.
  • the chloride derivative of the nonionic surfactant according to component e) is preferably represented by the following formula:
  • R is an alkyl group with 8 to 18 C atoms, a phenyl or naphthyl group optionally substituted with 1 or 2 alkyl groups with 8 to 18 C atoms
  • R 1 is hydrogen or a methyl or ethyl group.
  • n is an integer between 2 and 100.
  • a particularly suitable surfactant of this type is Antarox LF 330 from General Aniline and Film Corp.
  • an advantageous development of the invention provides to add a defoamer to the cleaner.
  • Defoamers based on hydrocarbons, such as microcrystalline wax, are particularly suitable.
  • Another easy-to-use defoamer is Pluronic L-61 from BASF-Wyandotte.
  • the cleaner can be in the form of a single dry or aqueous concentrate containing all components or in the form of several concentrates.
  • one concentrate contains the components alkali silicate, alkali phosphate and complexing agent, the other the surfactants and, if applicable, additives which adjust the pH. If the concentrate is manufactured dry and with all components, the addition of sodium carbonate, bicarbonate or sesquicarbonate is recommended in order to obtain a free-flowing product.
  • the cleaner is preferably used in a concentration of 1 to 30 g / l, in particular 1 to 15 g / 1 (based on components a - e). A concentration of 3.5 to 7.5 g / 1 is particularly favorable.
  • the pH of the cleaner used should be 10.5 to 13, preferably 11.5 to 12.5. If necessary, this value can be achieved by appropriate dosage of the concentrate or by pH-regulating additives.
  • the cleaner according to the invention is also suitable for cleaning other substrates.
  • the cleaner should be used at a temperature of 45 to 80 ° C, preferably 55 to 70 ° C.
  • the contact time is 15 seconds to 5 minutes, preferably 30 seconds to 2 minutes. After cleaning, as usual, should be rinsed with water. The known follow-up treatments can then follow.
  • the cleaner can contain other common additives, e.g. Have corrosion inhibitors such as amines, borates, nitrates and the like.
  • the cleaner is suitable for removing a large number of substances, especially for removing oils and soaps.
  • oils can e.g. be sulfurized paraffin oils and chlorinated sulfonates.
  • the cleaner is made in the form of two concentrates.
  • cleaning solutions are produced by dilution with water, which have the concentrations in g / 1 given in the table below.
  • the cleaning solutions are sprayed onto tinplate cans at a pressure of 2.1 to 2.5 bar at the temperatures given in the table for a period of 40 seconds.
  • the surfaces of these cans are covered with various types of lubricant residues.
  • the cans of Examples 2-9 were with a lubricant from EH Mack & Co., type 628B, those of Examples 10 and 11 with a lubricant from the same company, but types 623A and 544A and those of Examples 12 and 13 with one Lubricant in turn from the same company, type 544A.
  • the cans were then rinsed with water and deionized water and then evaluated. The results are shown in the table.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

Die Erfindung betrifft einen alkalischen Reiniger, insbesondere für Metalloberflächen, wie Schwarzblech oder Weißblech, mit a) 0,5 bis 25 Gew.-Teilen Alkalisilikat b) 0,1 bis 3 Gew.-Teilen Alkaliphosphat c) 0,1 bis 3 Gew.-Teilen Komplexbildner d) 0,05 bis 1,5 Gew.-Teilen äthoxiliertem, geradkettigem Alkohol e) 0,05 bis 1,5 Gew.-Teilen Chloridderivat eines nichtionogenen Tensids der Gruppe polyäthoxilierter Phenole, polyäthoxilierte aliphatische Alkohole und Mischungen hiervon. Er enthält vorzugsweise als Komponente a) Alkalimetasilikat, als Komponente b) Alkalipolyphosphate, als Komponente c) Alkaligluconat, als Komponente d) einen Alkohol mit 8 bis 18 C-Atomen in der alkoholischen Gruppierung und 7 bis 11 Mol Äthylenoxid und als Komponente e) eine Verbindung der Formel <IMAGE>The invention relates to an alkaline cleaner, in particular for metal surfaces, such as black plate or tinplate, with a) 0.5 to 25 parts by weight of alkali silicate b) 0.1 to 3 parts by weight of alkali metal phosphate c) 0.1 to 3 parts by weight. Parts of complexing agent d) 0.05 to 1.5 parts by weight of ethoxylated, straight-chain alcohol e) 0.05 to 1.5 parts by weight of chloride derivative of a nonionic surfactant from the group of polyethoxylated phenols, polyethoxylated aliphatic alcohols and mixtures thereof. It preferably contains as component a) alkali metal silicate, as component b) alkali polyphosphates, as component c) alkali metal gluconate, as component d) an alcohol having 8 to 18 carbon atoms in the alcoholic grouping and 7 to 11 mol ethylene oxide and as component e) one Connection of the formula <IMAGE>

Description

Die Erfindung betrifft einen alkalischen Reiniger mit einem Gehalt an Silikat, Phosphat, Komplexbildner und Tensid sowie dessen Anwendung auf die Reinigung von Metalloberflächen.The invention relates to an alkaline cleaner with a content of silicate, phosphate, complexing agent and surfactant and its application to the cleaning of metal surfaces.

Bleche aus Eisenwerkstoffen (Schwarzblech) oder verzinnten Eisenwerkstoffen (Weißblech) werden u.a. zur Herstellung von Behältern, wie Dosen etc., verwendet. Derartige Werkstoffe sind üblicherweise mit einem Schutzöl versehen, um sie vor Verschleiß und/oder Korrosion zu schützen. Auch können sich auf dem Blech Schmiermittel zur Erleichterung der Verformung befinden, die für den Schutz der Oberflächen von Vorteil sind, aber vor Verwendung des Behälters entfernt werden müssen.Sheets made of iron materials (black plate) or tinned iron materials (tin plate) are used, among other things. used for the production of containers such as cans, etc. Such materials are usually provided with a protective oil to protect them from wear and / or corrosion. There may also be lubricants on the sheet to facilitate deformation, which are advantageous for protecting the surfaces but must be removed before the container is used.

Üblicherweise erfolgt die Entfernung derartiger Schutz- oder Schmiermittelschichten mit Reinigern. So beschreibt die US-PS 4 382 825 einen alkalischen Reiniger für aus Schwarzblech gezogene und geglättete Behälter, der Alkalimetasilikat, -orthosilikat oder Mischungen hiervon, sowie ggf. Alkalicarbonat, Alkaliphosphat, ein Tensid, wie Nonylphenolpolyethoxyethanol und oxäthylierte sekundäre Alkohole enthält. Ein anderes Beispiel für einen alkalischen Reiniger ist in der US-PS 4 349 448 beschrieben. Ihr Gegenstand ist ein bei niedrigen Temperaturen arbeitender, schwach schäumender Reiniger mit einem Gehalt an alkalisch reagierenden Bestandteilen, äthoxyliertem Alkylphenol und äthoxyliertem/propoxyliertem Alkylphenol.Such protective or lubricant layers are usually removed using cleaners. For example, US Pat. No. 4,382,825 describes an alkaline cleaner for containers drawn and smoothed from black plate, which contains alkali metal silicate, orthosilicate or mixtures thereof, and optionally alkali metal carbonate, alkali metal phosphate, a surfactant such as nonylphenol polyethoxyethanol and oxyethylated secondary alcohols. Another example of an alkaline cleaner is described in U.S. Patent 4,349,448. Its subject is a low-foaming, low-foaming cleaner containing alkaline components, ethoxylated alkylphenol and ethoxylated / propoxylated alkylphenol.

Trotz der Existenz von Reinigern besteht weiterhin ein Bedarf für verbesserte, hochwirksame schaumarme Reiniger, die insbesondere auch an kontinuierlich arbeitenden Bandanlagen einsetzbar sind. Sie sollen darüberhinaus zu Oberflächen führen, die ein ansprechendes Äußeres und - in Form von Behältern - zur Verpackung von Nahrungsmitteln geeignet sind.Despite the existence of cleaners, there is still a need for improved, highly effective low-foaming cleaners, which can also be used in particular on continuously operating conveyor systems. In addition, they should lead to surfaces that are appealing on the outside and - in the form of containers - suitable for packaging food.

Aufgabe der Erfindung ist es, einen Reiniger, der die vorstehend genannten Anforderungen erfüllt, bereitzustellen. Insbesondere soll er für die Reinigung von Oberflächen aus Eisenwerkstoffen oder verzinnten Eisenwerkstoffen geeignet sein.The object of the invention is to provide a cleaner that meets the above requirements. In particular, it should be suitable for cleaning surfaces made of iron materials or tin-plated iron materials.

Die Aufgabe wird gelöst, indem der Reiniger der eingangs genannten Art entsprechend der Erfindung derart formuliert wird, daß er

  • a) 0,5 bis 25 Gew.-Teile Alkalisilikat
  • b) 0,1 bis 3 Gew.-Teile Alkaliphosphat
  • c) 0,1 bis 3 Gew.-Teile Komplexbildner
  • d) 0,05 bis 1,5 Gew.-Teile äthoxylierten geradkettigen Alkohol sowie
  • e) 0,05 bis 1,5 Gew.-Teile Chloridderivat eines nichtionogenen Tensids der Gruppe polyäthoxylierter Phenole, polyäthoxylierter aliphatischer Alkohole und Mischungen hiervon

enthält.The object is achieved by formulating the cleaner of the type mentioned in accordance with the invention in such a way that it
  • a) 0.5 to 25 parts by weight of alkali silicate
  • b) 0.1 to 3 parts by weight of alkali phosphate
  • c) 0.1 to 3 parts by weight of complexing agent
  • d) 0.05 to 1.5 parts by weight of ethoxylated straight-chain alcohol and
  • e) 0.05 to 1.5 parts by weight of chloride derivative of a nonionic surfactant from the group of polyethoxylated phenols, polyethoxylated aliphatic alcohols and mixtures thereof

contains.

Die Alkalisilikat-Komponente des erfindungsgemäßen Reinigers ist vorzugsweise ein Alkalimetasilikat, insbesondere Natriummetasilikat. Es sind jedoch auch andere Alkalisilikate, wie z.B. Kaliumorthosilikat, einsetzbar.The alkali silicate component of the cleaner according to the invention is preferably an alkali metasilicate, in particular sodium metasilicate. However, there are also other alkali silicates, such as potassium orthosilicate, can be used.

Die Alkaliphosphat-Komponente ist vorzugsweise Polyphosphat, insbesondere Natriumtripolyphosphat. Geeignete Verbindungen sind auch andere kondensierte Phosphate, wie Natrium- oder Kaliumpyrophosphat.The alkali phosphate component is preferably polyphosphate, especially sodium tripolyphosphate. Suitable compounds are also other condensed phosphates, such as sodium or potassium pyrophosphate.

Als Komplexbildner findet vorzugsweise Alkaligluconat, insbesondere Natriumgluconat, Verwendung. Es können aber auch andere Komplexbildner, wie Natriumzitrat, Äthylendiamintetraessigsäure bzw. das Natriumsalz hiervon, eingesetzt werden.Alkali metal gluconate, in particular sodium gluconate, is preferably used as the complexing agent. However, other complexing agents, such as sodium citrate, ethylenediaminetetraacetic acid or the sodium salt thereof, can also be used.

Der äthoxylierte geradkettige Alkohol sollte vorzugsweise 8 bis 18 C-Atome in der Alkoholgruppe und 7 bis 11 Äthylenoxid-Gruppen aufweisen. Ein besonders geeignetes Produkt ist Tergitol 15-S-9 der Fa. Union Carbide.The ethoxylated straight-chain alcohol should preferably have 8 to 18 carbon atoms in the alcohol group and 7 to 11 ethylene oxide groups. A particularly suitable product is Tergitol 15-S-9 from Union Carbide.

Das Chloridderivat des nichtionogenen Tensids gemäß Komponente e) wird vorzugsweise durch die folgende Formel wiedergegeben:

Figure imgb0001
The chloride derivative of the nonionic surfactant according to component e) is preferably represented by the following formula:
Figure imgb0001

Hierin bedeuten R eine Alkylgruppe mit 8 bis 18 C-Atomen, eine ggf. mit 1 oder 2 Alkylgruppen mit 8 bis 18 C-Atomen substituierte Phenyl- oder Naphthylgruppe, R1 Wasserstoff oder eine Methyl- oder Aethylgruppe. n ist andere Alkalisilikate, wie z.B. Kaliumorthosilikat, einsetzbar.Herein, R is an alkyl group with 8 to 18 C atoms, a phenyl or naphthyl group optionally substituted with 1 or 2 alkyl groups with 8 to 18 C atoms, R 1 is hydrogen or a methyl or ethyl group. n is other alkali silicates, such as potassium orthosilicate, can be used.

Die Alkaliphosphat-Komponente ist vorzugsweise Polyphosphat, insbesondere Natriumtripolyphosphat. Geeignete Verbindungen sind auch andere kondensierte Phosphate, wie Natrium- oder Kaliumpyrophosphat.The alkali phosphate component is preferably polyphosphate, especially sodium tripolyphosphate. Suitable compounds are also other condensed phosphates, such as sodium or potassium pyrophosphate.

Als Komplexbildner findet vorzugsweise Alkaligluconat, insbesondere Natriumgluconat, Verwendung. Es können aber auch andere Komplexbildner, wie Natriumzitrat, Äthylendiamintetraessigsäure bzw. das Natriumsalz hiervon, eingesetzt werden.Alkali metal gluconate, in particular sodium gluconate, is preferably used as the complexing agent. However, other complexing agents, such as sodium citrate, ethylenediaminetetraacetic acid or the sodium salt thereof, can also be used.

Der äthoxylierte geradkettige Alkohol sollte vorzugsweise 8 bis 18 C-Atome in der Alkoholgruppe und 7 bis 11 Äthylenoxid-Gruppen aufweisen. Ein besonders geeignetes Produkt ist Tergitol 15-S-9 der Fa. Union Carbide.The ethoxylated straight-chain alcohol should preferably have 8 to 18 carbon atoms in the alcohol group and 7 to 11 ethylene oxide groups. A particularly suitable product is Tergitol 15-S-9 from Union Carbide.

Das Chloridderivat des nichtionogenen Tensids gemäß Komponente e) wird vorzugsweise durch die folgende Formel wiedergegeben:

Figure imgb0002
The chloride derivative of the nonionic surfactant according to component e) is preferably represented by the following formula:
Figure imgb0002

Hierin bedeuten R eine Alkylgruppe mit 8 bis 18 C-Atomen, eine ggf. mit 1 oder 2 Alkylgruppen mit 8 bis 18 C-Atomen substituierte Phenyl- oder Naphthylgruppe, R1 Wasserstoff oder eine Methyl- oder Aethylgruppe. n ist eine ganze Zahl zwischen 2 und 100. Ein besonders geeignetes Tensid dieser Art ist Antarox LF 330 der Fa. General Aniline and Film Corp.Herein, R is an alkyl group with 8 to 18 C atoms, a phenyl or naphthyl group optionally substituted with 1 or 2 alkyl groups with 8 to 18 C atoms, R 1 is hydrogen or a methyl or ethyl group. n is an integer between 2 and 100. A particularly suitable surfactant of this type is Antarox LF 330 from General Aniline and Film Corp.

Sofern eine starke Schaumbildung, z.B. bei hohen Spritzdrücken, auftritt, sieht eine vorteilhafte Weiterbildung der Erfindung vor, dem Reiniger einen Entschäumer zuzugeben. Besonders geeignet sind Entschäumer auf Kohlenwasserstoffbasis, wie mikrokristallines Wachs. Ein weiterer gut einsetzbarer Entschäumer ist Pluronic L-61 der Fa. BASF-Wyandotte.If there is strong foaming, e.g. occurs at high spray pressures, an advantageous development of the invention provides to add a defoamer to the cleaner. Defoamers based on hydrocarbons, such as microcrystalline wax, are particularly suitable. Another easy-to-use defoamer is Pluronic L-61 from BASF-Wyandotte.

Eine bevorzugte Ausgestaltung der Erfindung sieht vor, einen Reiniger einzusetzen, der die Komponenten

  • a) in einer Menge von 0,5 bis 12,5 Gew.-Teile, vorzugsweise von 1,5 bis 6,0 Gew.-Teile,
  • b) in einer Menge von 0,1 bis 1,5 Gew.-Teile, vorzugsweise von 0,15 bis 0,75 Gew.-Teile,
  • c) in einer Menge von 0,1 bis 1,5 Gew.-Teile, vorzugsweise von 0,15 bis 0,75 Gew.-Teile,
  • d) in einer Menge von 0,05 bis 0,75 Gew.-Teile, vorzugsweise von 0,05 bis 0,50 Gew.-Teile,
  • e) in einer Menge von 0,05 bis 0,75 Gew.-Teile, vorzugsweise von 0,05 bis 0,50 Gew.-Teile,

enthält.A preferred embodiment of the invention provides for the use of a cleaner which contains the components
  • a) in an amount of 0.5 to 12.5 parts by weight, preferably 1.5 to 6.0 parts by weight,
  • b) in an amount of 0.1 to 1.5 parts by weight, preferably 0.15 to 0.75 parts by weight,
  • c) in an amount of 0.1 to 1.5 parts by weight, preferably 0.15 to 0.75 parts by weight,
  • d) in an amount of 0.05 to 0.75 parts by weight, preferably 0.05 to 0.50 parts by weight,
  • e) in an amount of 0.05 to 0.75 parts by weight, preferably 0.05 to 0.50 parts by weight,

contains.

Der Reiniger kann in Form eines einzigen trockenen oder wäßrigen Konzentrates, das sämtliche Komponenten enthält, oder in Form von mehreren Konzentraten hergestellt werden. Im letztgenannten Fall enthält z.B. das eine Konzentrat die Komponenten Alkalisilikat, Alkaliphosphat und Komplexbildner, das andere die Tenside sowie ggf. pH-Wert einstellende Zusätze. Sofern das Konzentrat trocken und mit sämtlichen Komponenten hergestellt wird, empfiehlt sich die Zugabe von Natriumkarbonat, -bikarbonat oder -sesquikarbonat, um ein freifließendes Produkt zu erhalten.The cleaner can be in the form of a single dry or aqueous concentrate containing all components or in the form of several concentrates. In the latter case, for example, one concentrate contains the components alkali silicate, alkali phosphate and complexing agent, the other the surfactants and, if applicable, additives which adjust the pH. If the concentrate is manufactured dry and with all components, the addition of sodium carbonate, bicarbonate or sesquicarbonate is recommended in order to obtain a free-flowing product.

Falls die Reinigung von Oberflächen aus Eisenwerkstoffen oder verzinnten Eisenwerkstoffen vorgesehen ist, erfolgt die Anwendung des Reinigers vorzugsweise in einer Konzentration von 1 bis 30 g/l, insbesondere 1 bis 15 g/1 (bezogen auf die Komponenten a - e). Eine Konzentration von 3,5 bis 7,5 g/1 ist besonders günstig. Der pH-Wert des eingesetzten Reinigers sollte 10,5 bis 13, vorzugsweise 11,5 bis 12,5 betragen. Sofern erforderlich, kann dieser Wert durch entsprechende Dosierung des Konzentrates oder durch pH-Wert regulierende Zusätze erfolgen.If the cleaning of surfaces made of iron materials or tin-plated iron materials is intended, the cleaner is preferably used in a concentration of 1 to 30 g / l, in particular 1 to 15 g / 1 (based on components a - e). A concentration of 3.5 to 7.5 g / 1 is particularly favorable. The pH of the cleaner used should be 10.5 to 13, preferably 11.5 to 12.5. If necessary, this value can be achieved by appropriate dosage of the concentrate or by pH-regulating additives.

Der arbeitende Reiniger kann auf jede übliche Weise eingesetzt werden. Falls die vorgenannten Metalloberflächen behandelt werden sollen, empfiehlt sich als Verfahrensgang

  • 1. Vorreinigung
  • 2. Reinigung mit dem erfindungsgemäßen Reiniger durch Spritzen bei 65° C während einer Zeitdauer von 30 bis 60 sec.
  • 3. Spülen mit Wasser von Raumtemperatur während 15 bis 30 sec.
The working cleaner can be used in any usual way. If the aforementioned metal surfaces are to be treated, it is recommended as a process step
  • 1. Pre-cleaning
  • 2. Cleaning with the cleaner according to the invention by spraying at 65 ° C for a period of 30 to 60 seconds.
  • 3. Rinse with water at room temperature for 15 to 30 seconds.

Obgleich die Behandlung von Eisenwerkstoffen und verzinnten Eisenwerkstoffen bzw. Behälter aus diesen Materialien besonders herausgestellt ist, ist der erfindungsgemäße Reiniger auch für die Reinigung anderer Substrate geeignet. Der Reiniger sollte bei einer Temperatur von 45 bis 80° C, vorzugsweise von 55 bis 70° C, eingesetzt werden. Als Kontaktdauer ist 15 sec. bis 5 min., vorzugsweise 30 sec. bis 2 min., zweckmäßig. Nach der Reinigung sollte - wie generell üblich - mit Wasser gespült werden. Es können sich dann die bekannten Folgebehandlungen anschließen.Although the treatment of iron materials and tinned iron materials or containers made of these materials is particularly emphasized, the cleaner according to the invention is also suitable for cleaning other substrates. The cleaner should be used at a temperature of 45 to 80 ° C, preferably 55 to 70 ° C. The contact time is 15 seconds to 5 minutes, preferably 30 seconds to 2 minutes. After cleaning, as usual, should be rinsed with water. The known follow-up treatments can then follow.

Neben den bereits genannten Bestandteilen kann der Reiniger andere übliche Zusätze, z.B. Korrosionsinhibitoren, wie Amine, Borate, Nitrate und dgl. aufweisen. Der Reiniger eignet sich zur Entfernung einer Vielzahl von Stoffen, insbesondere zur Entfernung von Ölen und Seifen. Derartige Öle können z.B. sulfurierte Paraffinöle und chlorierte Sulfonate sein.In addition to the components already mentioned, the cleaner can contain other common additives, e.g. Have corrosion inhibitors such as amines, borates, nitrates and the like. The cleaner is suitable for removing a large number of substances, especially for removing oils and soaps. Such oils can e.g. be sulfurized paraffin oils and chlorinated sulfonates.

Die Erfindung wird anhand der folgenden Beispiele beispielsweise und näher erläutert.The invention is illustrated by the following examples, for example and in more detail.

Beispiel 1example 1

Der Reiniger wird in Form zweier Konzentrate hergestellt.The cleaner is made in the form of two concentrates.

Das erste Konzentrat enthält:

  • 1 Gew.-Teil Natriumtripolyphosphat
  • 8 Gew.-Teile Natriummetasilicat
  • 1 Gew.-Teil Natriumgluconat
The first concentrate contains:
  • 1 part by weight of sodium tripolyphosphate
  • 8 parts by weight of sodium metasilicate
  • 1 part by weight of sodium gluconate

Das zweite Konzentrat enthält:

  • 1 Gew.-Teil Antarox LF330
  • 1 Gew.-Teil Tergitol 15-S-9
  • 1 Gew.-Teil Wasser
The second concentrate contains:
  • 1 part by weight of Antarox LF330
  • 1 part by weight of Tergitol 15-S-9
  • 1 part by weight of water

Amoniak nur Einstellung auf pH 10,5Amoniak only adjustment to pH 10.5

Zur Herstellung von 1 1 Reinigerlösung werden 3,74 g des Konzentrates 1 und 0,524 g des Konzentrates 2 mit Wasser verdünnt. Der Reiniger wird auf Schwarzblechdosen im Spritzverfahren bei einer Temperatur von ca. 65° C während einer Dauer von 1 min. eingesetzt. Danach werden die Dosen mit Wasser und mit vollentsalztem Wasser gespült. Bei einer Benetzungsprüfung vor und nach der Trocknung ergibt sich, daß einwandfreie Benetzung erfolgt bzw. kein Bruch des Wasserfilmes auftritt.To prepare 1 l of cleaning solution, 3.74 g of concentrate 1 and 0.524 g of concentrate 2 are diluted with water. The cleaner is sprayed on black tin cans at a temperature of approx. 65 ° C for a period of 1 min. used. Then the cans are rinsed with water and deionized water. A wetting test before and after drying shows that the wetting is flawless and the water film does not break.

Beispiele 2 - 13Examples 2-13

Aus verschiedenen Konzentraten werden durch Verdünnung mit Wasser Reinigerlösungen erzeugt, die die in der nachfolgenden Tabelle angegebenen Konzentrationen in g/1 aufweisen. Die Reinigerlösungen werden während einer Zeitdauer von 40 sec. mit einem Druck von 2,1 bis 2,5 bar mit den in der Tabelle angegebenen Temperaturen auf Weißblechdosen aufgespritzt. Die Oberflächen dieser Dosen sind mit verschiedenartigen Schmiermittelresten versehen. Die Dosen der Beispiele 2 - 9 waren mit einem Schmiermittel der Firma E. H. Mack & Co., Typ 628B, die der Beispiele 10 und 11 mit einem Schmiermittel der gleichen Firma, jedoch der Typen 623A und 544A und die der Beispiele 12 und 13 mit einem Schmiermittel wiederum der gleichen Firma, Typ 544A, behaftet.From various concentrates, cleaning solutions are produced by dilution with water, which have the concentrations in g / 1 given in the table below. The cleaning solutions are sprayed onto tinplate cans at a pressure of 2.1 to 2.5 bar at the temperatures given in the table for a period of 40 seconds. The surfaces of these cans are covered with various types of lubricant residues. The cans of Examples 2-9 were with a lubricant from EH Mack & Co., type 628B, those of Examples 10 and 11 with a lubricant from the same company, but types 623A and 544A and those of Examples 12 and 13 with one Lubricant in turn from the same company, type 544A.

Danach wurden die Dosen mit Wasser und mit vollentsalztem Wasser gespült und anschließend bewertet. Die Ergebnisse sind in der Tabelle aufgeführt.

Figure imgb0003
The cans were then rinsed with water and deionized water and then evaluated. The results are shown in the table.
Figure imgb0003

Claims (9)

1.) Alkalischer Reiniger mit einem Gehalt an Silicat, Phosphat, Komplexbildner und Tensid dadurch gekennzeichnet, daß er a) 0,5 bis 25 Gew.-Teile Alkalisilikat b) 0,1 bis 3 Gew.-Teile Alkaliphosphat c) 0,1 bis 3 Gew.-Teile Komplexbildner d) 0,05 bis 1,5 Gew.-Teile äthoxilierten, geradkettigen Alkohol e) 0,05 bis 1,5 Gew.-Teile Chloridderivat eines nichtionogenen Tensids der Gruppe polyäthoxilierter Phenole, polyäthoxilierte aliphatische Alkohole und Mischungen hiervon
enthält.
1.) Alkaline cleaner containing silicate, phosphate, complexing agent and surfactant, characterized in that it a) 0.5 to 25 parts by weight of alkali silicate b) 0.1 to 3 parts by weight of alkali phosphate c) 0.1 to 3 parts by weight of complexing agent d) 0.05 to 1.5 parts by weight of ethoxylated, straight-chain alcohol e) 0.05 to 1.5 parts by weight of chloride derivative of a nonionic surfactant from the group of polyethoxylated phenols, polyethoxylated aliphatic alcohols and mixtures thereof
contains.
2. Reiniger nach Anspruch 1, dadurch gekennzeichnet, daß er als Komponente a) Alkalimetasilikat enthält.2. Cleaner according to claim 1, characterized in that it contains as component a) alkali metal silicate. 3. Reiniger nach Anpruch 1 oder 2, dadurch gekennzeichnet, daß er als Komponente b) Alkalipolyphosphate enthält.3. Cleaner according to claim 1 or 2, characterized in that it contains alkali metal polyphosphates as component b). 4. Reiniger nach Anspruch l, 2 oder 3, dadurch gekennzeichnet, daß er als Komponente c) Alkaligluconat enthält.4. Cleaner according to claim 1, 2 or 3, characterized in that it contains alkali metal gluconate as component c). 5. Reiniger nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß er eine Komponente d) enthält, die 8 bis 18 C-Atome in der alkoholischen Gruppierung und 7 bis 11 Mol Äthylenoxid aufweist.5. Cleaner according to one or more of claims 1 to 4, characterized in that it contains a component d) which has 8 to 18 carbon atoms in the alcoholic grouping and 7 to 11 moles of ethylene oxide. 6. Reiniger nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß seine Komponente e) die Formel
Figure imgb0004
besitzt, wobei R eine Alkylgruppe mit 8 bis 18 C-Atomen, eine ggf. mit 1 oder 2 Alkylgruppen mit 8 bis 18 C-Atomen substituierte Phenyl- der Naphthylgruppe, R1 Wasserstoff oder eine Methyl- oder Aethylgruppe ist und n eine ganze Zahl zwischen 2 und 100 darstellt.
6. Cleaner according to one or more of claims 1 to 5, characterized in that its component e) has the formula
Figure imgb0004
has, where R is an alkyl group having 8 to 18 carbon atoms, a phenyl or naphthyl group which is optionally substituted by 1 or 2 alkyl groups having 8 to 18 carbon atoms, R 1 is hydrogen or a methyl or ethyl group and n is an integer represents between 2 and 100.
7. Reiniger nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß er zusätzlich Entschäumer, vorzugsweise microkristallines Wachs, enthält.7. Cleaner according to one or more of claims 1 to 6, characterized in that it additionally contains defoamers, preferably microcrystalline wax. 8. Reiniger nach einem oder mehreren der Ansprüche 1 - 7, dadurch gekennzeichnet, daß er die Komponenten a) in einer Menge von 0,5 bis 12,5 Gew.-Teile, vorzugsweise von 1,5 bis 6,0 Gew.-Teile, b) in einer Menge von 0,1 bis 1,5 Gew.-Teile, vorzugsweise von 0,15 bis 0,75 Gew.-Teile, c) in einer Menge von 0,1 bis 1,5 Gew.-Teile, vorzugsweise von 0,15 bis 0,75 Gew.-Teile, d) in einer Menge von 0,05 bis 0,75 Gew.-Teile, vorzugsweise von 0,05 bis 0,50 Gew.-Teile, e) in einer Menge von 0,05 bis 0,75 Gew.-Teile, vorzugsweise von 0,05 bis 0,50 Gew.-Teile,
enthält.
8. Cleaner according to one or more of claims 1-7, characterized in that it contains the components a) in an amount of 0.5 to 12.5 parts by weight, preferably 1.5 to 6.0 parts by weight, b) in an amount of 0.1 to 1.5 parts by weight, preferably 0.15 to 0.75 parts by weight, c) in an amount of 0.1 to 1.5 parts by weight, preferably 0.15 to 0.75 parts by weight, d) in an amount of 0.05 to 0.75 parts by weight, preferably 0.05 to 0.50 parts by weight, e) in an amount of 0.05 to 0.75 parts by weight, preferably 0.05 to 0.50 parts by weight,
contains.
9. Anwendung des Reinigers nach einem oder mehreren der Ansprüche 1 bis 8 in einer Konzentration von 1 bis 30 g/l, vorzugsweise 1 bis 15 g/1, bei einem pH-Wert von 10,5 bis 13, vorzugsweise 11,5 bis 12,5, auf die Reinigung von Metalloberflächen, insbesondere Stahl- oder Weißblech-Oberflächen.9. Use of the cleaner according to one or more of claims 1 to 8 in a concentration of 1 to 30 g / l, preferably 1 to 15 g / 1, at a pH of 10.5 to 13, preferably 11.5 to 12.5, on the cleaning of metal surfaces, especially steel or tinplate surfaces.
EP86108247A 1985-06-19 1986-06-17 Alkaline detergent Withdrawn EP0206222A3 (en)

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US06/746,430 US4597888A (en) 1985-06-19 1985-06-19 Cleaner for steel cans
US746430 1991-08-16

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EP0206222A3 EP0206222A3 (en) 1988-10-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993018205A1 (en) * 1992-03-13 1993-09-16 Henkel Corporation Composition and process for cleaning tinplate stock

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3246080A1 (en) * 1982-12-13 1984-06-14 Henkel KGaA, 4000 Düsseldorf CLEANING PROCEDURE
DE3504172A1 (en) * 1985-02-07 1986-08-07 Henkel KGaA, 4000 Düsseldorf ACTIVE CONCENTRATES FOR ALKALINE TWO-COMPONENT CLEANERS, METHOD FOR THEIR PRODUCTION AND THEIR USE
US4746453A (en) * 1986-11-07 1988-05-24 China Steel Corporation Cleaning composition for electrocleaning cold-rolled steel
KR960002629B1 (en) * 1987-06-25 1996-02-24 가오 가부시끼가이샤 Additive for alkaline detergent and the composition containing the same
US5536452A (en) * 1993-12-07 1996-07-16 Black; Robert H. Aqueous shower rinsing composition and a method for keeping showers clean
US5910474A (en) * 1995-05-11 1999-06-08 Black; Robert H. Method of rinsing showers clean
US5837664A (en) * 1996-07-16 1998-11-17 Black; Robert H. Aqueous shower rinsing composition and a method for keeping showers clean
US5840772A (en) * 1996-09-18 1998-11-24 Ppg Industries, Inc. Methods of recycling and compositions used therein
US5968370A (en) * 1998-01-14 1999-10-19 Prowler Environmental Technology, Inc. Method of removing hydrocarbons from contaminated sludge
FR2780732B1 (en) 1998-07-06 2000-09-08 Ceca Sa NON-FOAMING DETERGENT COMPOSITIONS FOR CONCENTRATED ALKALINE MEDIA
US20020164426A1 (en) * 1999-09-23 2002-11-07 Ennis Thomas James Method of adhering coatings to substrates
KR100689296B1 (en) * 2006-01-25 2007-03-02 정승철 Snow remaval agent and preparation method thereof
JP2013075971A (en) * 2011-09-30 2013-04-25 Yuken Industry Co Ltd Detergent composition and production method therefor
CN107513715A (en) * 2017-06-01 2017-12-26 东莞市达诚显示材料有限公司 A kind of cleaning agent for engine compression casting oil

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB869870A (en) * 1959-07-30 1961-06-07 Reddish Chemical Company Ltd Improvements in the cleaning of heat exchangers of the plate type
GB929590A (en) * 1960-03-31 1963-06-26 Gen Aniline & Film Corp Non-discoloring nonionic surfactant compositions
US3437697A (en) * 1965-09-10 1969-04-08 Gaf Corp Low-foaming surfactant compositions
US3888783A (en) * 1973-10-10 1975-06-10 Amchem Prod Cleaner for tin plated ferrous metal surfaces, comprising phosphate, silicate and borax
GB1445716A (en) * 1973-04-24 1976-08-11 Diversey Ltd Cleaning compositions
DE2758629A1 (en) * 1976-12-30 1978-07-06 Amchem Prod METHOD OF CLEANING METAL SURFACES
US4382825A (en) * 1981-07-08 1983-05-10 Amchem Products, Inc. Alkaline cleaner for ferrous-based metal surfaces
US4390465A (en) * 1981-06-22 1983-06-28 Fremont Industries, Inc. Low temperature composition for plating pretreatment of ferrous metals
US4602963A (en) * 1985-01-07 1986-07-29 Surface Treatments, Inc. Method for metal cleaning

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255118A (en) * 1961-12-29 1966-06-07 Pennsalt Chemicals Corp Aluminum cleaning compositions
US4349448A (en) * 1980-08-25 1982-09-14 Hooker Chemicals & Plastics Corp. Low temperature low foaming alkaline cleaner and method
US4497667A (en) * 1983-07-11 1985-02-05 Amchem Products, Inc. Pretreatment compositions for metals
EP0201864B1 (en) * 1985-05-13 1992-04-15 HENKEL CORPORATION (a Delaware corp.) Alkaline cleaner for aluminum

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB869870A (en) * 1959-07-30 1961-06-07 Reddish Chemical Company Ltd Improvements in the cleaning of heat exchangers of the plate type
GB929590A (en) * 1960-03-31 1963-06-26 Gen Aniline & Film Corp Non-discoloring nonionic surfactant compositions
US3437697A (en) * 1965-09-10 1969-04-08 Gaf Corp Low-foaming surfactant compositions
GB1445716A (en) * 1973-04-24 1976-08-11 Diversey Ltd Cleaning compositions
US3888783A (en) * 1973-10-10 1975-06-10 Amchem Prod Cleaner for tin plated ferrous metal surfaces, comprising phosphate, silicate and borax
DE2758629A1 (en) * 1976-12-30 1978-07-06 Amchem Prod METHOD OF CLEANING METAL SURFACES
US4390465A (en) * 1981-06-22 1983-06-28 Fremont Industries, Inc. Low temperature composition for plating pretreatment of ferrous metals
US4382825A (en) * 1981-07-08 1983-05-10 Amchem Products, Inc. Alkaline cleaner for ferrous-based metal surfaces
US4602963A (en) * 1985-01-07 1986-07-29 Surface Treatments, Inc. Method for metal cleaning

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993018205A1 (en) * 1992-03-13 1993-09-16 Henkel Corporation Composition and process for cleaning tinplate stock

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DE3620314A1 (en) 1987-01-02
GB8614792D0 (en) 1986-07-23
EP0206222A3 (en) 1988-10-05
GB2176798A (en) 1987-01-07
US4597888A (en) 1986-07-01
GB2176798B (en) 1989-02-08
AU580171B2 (en) 1989-01-05
JPS61291699A (en) 1986-12-22
AU5871786A (en) 1986-12-24

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