EP1966363B1 - Inhibition des proprietes corrosives d'agents de nettoyage liquides contenant de l'hypochlorite - Google Patents

Inhibition des proprietes corrosives d'agents de nettoyage liquides contenant de l'hypochlorite Download PDF

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Publication number
EP1966363B1
EP1966363B1 EP06819024A EP06819024A EP1966363B1 EP 1966363 B1 EP1966363 B1 EP 1966363B1 EP 06819024 A EP06819024 A EP 06819024A EP 06819024 A EP06819024 A EP 06819024A EP 1966363 B1 EP1966363 B1 EP 1966363B1
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EP
European Patent Office
Prior art keywords
alkali metal
cleaning agent
use according
hypochlorite
alkyl
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.)
Active
Application number
EP06819024A
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German (de)
English (en)
Other versions
EP1966363A1 (fr
Inventor
Carlos Malet
Xavier Closa Cruxens
Miguel Osset
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 AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
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Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Priority to PL06819024T priority Critical patent/PL1966363T3/pl
Publication of EP1966363A1 publication Critical patent/EP1966363A1/fr
Application granted granted Critical
Publication of EP1966363B1 publication Critical patent/EP1966363B1/fr
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    • 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
    • C11D3/395—Bleaching agents
    • C11D3/3956—Liquid 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/29—Sulfates of polyoxyalkylene ethers
    • 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
    • C11D3/0073—Anticorrosion 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
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0084—Antioxidants; Free-radical scavengers
    • 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/08—Silicates
    • 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
    • C11D2111/16—Metals

Definitions

  • the present invention relates to the reduction of corrosivity of hypochlorite on metal surfaces when using hypochlorite-containing liquid detergents for cleaning metal surfaces.
  • Hard surface cleaners such as kitchen and bathroom cleaners, have historically been highly abrasive powders, optionally containing low levels of surfactants and properly referred to as scouring powders. They were aggressive not only to the user's hand, but also to the surface with which they were brought into contact for cleaning purposes. In some cases, a bleaching agent has been incorporated into such scrubbing powders to oxidatively break up soils and thereby facilitate their removability. Although modern abrasive cleaners are now much more skin-friendly in their composition, these cleaners still rely essentially on the action of Abrasivstoffs to remove stains, which in particular soap deposits, which are usually derived mainly from personal hygiene, from hard Remove surfaces such as bathroom tiles or sinks.
  • hypochlorite is known to be a highly effective bleaching agent and has been used for a long time, optionally with soaps and / or synthetic surfactants, to remove stains and all sorts of soils from laundry to textiles as well as hard surface cleaning. It is normally sold in concentrations of about 2 to 10% by weight in water for household use. While the use of hypochlorite agents an excellent disinfecting performance and very good Cleaning results achieved on hard surfaces, observed in sensitive cleaning in some cases, a change in the surface. This can range from a slight impairment of the visual impression to the appearance of pits in the surface or even pitting, with severe cases usually occurring only with improper use of the agent.
  • the sensitive surfaces mentioned here include, in particular, those made of metal, for example steel surfaces, such as those found in kitchen sinks, as housing surfaces of domestic appliances or linings of kitchen or bathroom cabinets.
  • metal for example steel surfaces, such as those found in kitchen sinks, as housing surfaces of domestic appliances or linings of kitchen or bathroom cabinets.
  • Hypochlorite-containing detergents are biespielweise EP 311 175 . DE 19700799 unnd EP903403 known.
  • hypochlorite detergent positively influences the corrosion behavior.
  • the metal surface is a steel surface, since then the improvement effect of the combination used in the invention is particularly pronounced.
  • the combination used according to the invention is preferably a constituent of the hypochlorite-containing cleaning agent.
  • the cleaning agent contains 0.5 wt .-% to 10 wt .-%, in particular 2 wt .-% to 5.5 wt .-% alkali metal hypochlorite.
  • alkali metal hypochlorites such as potassium hypochlorite
  • sodium hypochlorite it is still preferable to use sodium hypochlorite in the present invention.
  • aqueous sodium hypochlorite solutions often contain considerable amounts of chloride salts. These can readily be used for the production of corrosion-enhanced agents according to the invention, so that it is not necessarily dependent on the use of high-purity NaOCl.
  • hypochlorite-containing agents are alkaline, it being preferred according to the invention, when the cleaning agent contains more than 0 wt .-% up to 5 wt .-%, in particular 0.1 wt .-% to 2 wt .-% alkali metal hydroxide.
  • more than 0 wt .-% up to 5 wt .-%, in particular 0.1 wt .-% to 2.5 wt .-% alkali metal silicate in the agent is preferably, more than 0 wt .-% up to 5 wt .-%, in particular 0.1 wt .-% to 2.5 wt .-% alkali metal silicate in the agent. This not only improves the corrosion behavior but also increases the storage stability of the hypochlorite.
  • alkyl (alkoxy) n- sulfate which may also be referred to as alkyl ether sulfate and by reacting alcohols (preferably having 6 to 22 carbon atoms) with alkylene oxides, in particular ethylene oxide, and subsequent Sulfation and neutralization, especially with alkaline alkali metal salts such as alkali metal hydroxides, is available.
  • alcohols preferably having 6 to 22 carbon atoms
  • alkylene oxides in particular ethylene oxide
  • alkaline alkali metal salts such as alkali metal hydroxides
  • the alkyl (alkoxy) n- sulphate preferably has a C 8-18 , in particular C 12-16 -alkyl group, -OCH 2 CH 2 - and / or -OCHCH 3 CH 2 -alkoxy group (s), where n is preferably is a number from 1 to 6, especially 2 to 5.
  • the preferred alkali hydroxide is sodium hydroxide, and also the alkali salts mentioned in connection with the other ingredients of the compositions are preferably the sodium salts.
  • the alkali metal silicate sodium silicate and / or the alkali metal counterion of the ether sulfate is the sodium ion.
  • the cleaning agent may contain up to 5% by weight of additional bleach-stable surfactant.
  • betaines in particular those of the general formula I, wherein R 1 is an alkyl or alkenyl group having 6 to 22 carbon atoms or a group R 4 is CO-NH- (CH 2 ) n -, R 2 is hydrogen or an alkyl group having 1 to 4 carbon atoms, R 3 is hydrogen or an alkyl group with 1 to 4 carbon atoms, R 4 is an alkyl or alkenyl group having 6 to 22 carbon atoms, m is a number from 1 to 6 and n is a number from 1 to 3.
  • particularly suitable members of this class of surfactants include C 12-18 alkyl dimethyl betaine, commercially available as coconut betaine, and C 10-16 alkyl dimethyl betaine, commercially available as lauryl betaine.
  • the preparations may additionally contain sequestering agents, preferably phosphates, alkyl phosphates, alkylphosphonic acids and among these in particular those having at least one amine oxide substituent on the alkyl group, referred to herein as Aminoxidphosphonklaren, polyacrylic acids and / or phosphono-containing polyacrylic acids, which are also present in the form of their alkali metal salts can.
  • sequestering agents preferably phosphates, alkyl phosphates, alkylphosphonic acids and among these in particular those having at least one amine oxide substituent on the alkyl group
  • Aminoxidphosphonklaren phosphates, alkyl phosphates, alkylphosphonic acids and among these in particular those having at least one amine oxide substituent on the alkyl group
  • Aminoxidphosphonklaren phosphates, alkyl phosphates, alkylphosphonic acids and among these in particular those having at least one amine oxide substituent on the alkyl group
  • Amine oxide phosphonic acids are the amine oxide based on aminotrimethylene phosphonic acid. Preferably, from 0.01% to 2% by weight of such sequestering agents are present.
  • the agents contain 0.1% by weight to 2% by weight of carbonate, in particular alkali carbonate.
  • the corrosion-improved preparations according to the invention may contain small amounts of one or more pale-stable dyes or fragrances.
  • the optional perfume component is preferably of higher relative volatility than the ingredients optionally responsible for a bleaching odor.
  • the stabilized compositions according to the invention can be prepared in a simple manner by mixing the above-mentioned ingredients in the indicated amounts. They are applied after dilution with water or, if desired, also undiluted.

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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)
  • Biochemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Claims (11)

  1. Utilisation d'une combinaison d'un hydroxyde de métal alcalin, d'un silicate de métal alcalin, d'un sulfate d'alkyl-(alcoxy)n où n = 0,5 à 10, et d'un phosphate d'alkyle dans un agent de nettoyage liquide aqueux contenant de l'hypochlorite, afin de diminuer la corrosivité de l'hypochlorite sur des surfaces métalliques.
  2. Utilisation selon la revendication 1, caractérisée en ce que la surface métallique est une surface en acier.
  3. Utilisation selon la revendication 1 ou 2, caractérisée en ce que l'agent de nettoyage contient de 0,5 % en poids à 10 % en poids, en particulier de 2 % en poids à 5,5 % en poids d'un hypochlorite de métal alcalin en particulier l'hypochlorite de sodium.
  4. Utilisation selon l'une quelconque des revendications 1 à 3, caractérisée en ce que l'agent de nettoyage contient de plus de 0 % en poids jusqu'à 5 % en poids, en particulier de 0,1 % en poids à 2 % en poids d'un hydroxyde de métal alcalin.
  5. Utilisation selon l'une quelconque des revendications 1 à 4, caractérisée en ce que l'agent de nettoyage contient de plus de 0 % en poids jusqu'à 5 % en poids, en particulier de 0,1 % en poids à 2,5 % en poids d'un silicate de métal alcalin.
  6. Utilisation selon l'une quelconque des revendications 1 à 5, caractérisée en ce que l'agent de nettoyage contient de plus de 0 % en poids jusqu'à 5 % en poids d'un sulfate d'alkyl-(alcoxy)n.
  7. Utilisation selon l'une quelconque des revendications 1 à 6, caractérisée en ce que l'agent de nettoyage contient un sulfate d'alkyl-(alcoxy)n comprenant un groupe alkyle en C8-C18, en particulier un groupe alkyle en C12-C16, un groupe -OCH2CH2- et/ou un groupe -OCHCH3CH2- à titre de groupes alcoxy, où n représente un nombre de 1 à 6, en particulier de 2 à 5, et présente un ion antagoniste de métal alcalin pour le groupe sulfate.
  8. Utilisation selon l'une quelconque des revendications 1 à 7, caractérisée en ce que l'hydroxyde de métal alcalin est l'hydroxyde de sodium, le silicate de métal alcalin est le silicate de sodium et/ou l'ion antagoniste du métal alcalin est un ion de sodium.
  9. Utilisation selon l'une quelconque des revendications 1 à 8, caractérisée en ce que l'agent de nettoyage contient, jusqu'à 5 % en poids, un agent tensioactif stable au blanchiment, en particulier de la bétaïne.
  10. Utilisation selon l'une quelconque des revendications 1 à 9, caractérisée en ce que l'agent de nettoyage contient en outre, de 0,01 % en poids à 2 % en poids, d'un acide alkylphosphonique et/ou d'un phosphonate, en particulier d'un acide aminoxyde-phosphonique, d'un acide polyacrylique présentant des groupes phosphono et/ou d'un sel de métal alcalin d'un de ces acides ou des deux, et/ou de 0,1 % en poids à 2 % en poids d'un carbonate, en particulier d'un carbonate de métal alcalin.
  11. Procédé pour le nettoyage de surfaces métalliques, en particulier de surfaces en acier, caractérisé par la mise en oeuvre d'un agent de nettoyage liquide aqueux contenant de l'hypochlorite, qui contient une combinaison d'un hydroxyde de métal alcalin, d'un silicate de métal alcalin, d'un sulfate d'alkyl-(alcoxy)n où n = 0,5 à 10, et d'un phosphate d'alkyle.
EP06819024A 2005-12-29 2006-12-13 Inhibition des proprietes corrosives d'agents de nettoyage liquides contenant de l'hypochlorite Active EP1966363B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06819024T PL1966363T3 (pl) 2005-12-29 2006-12-13 Hamowanie korozji ciekłych, zawierających podchloryn środków czyszczących

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005063065A DE102005063065A1 (de) 2005-12-29 2005-12-29 Korrosionsinhibierung flüssiger hypochlorithaltiger Reinigungsmittel
PCT/EP2006/011960 WO2007079881A1 (fr) 2005-12-29 2006-12-13 Inhibition des proprietes corrosives d'agents de nettoyage liquides contenant de l'hypochlorite

Publications (2)

Publication Number Publication Date
EP1966363A1 EP1966363A1 (fr) 2008-09-10
EP1966363B1 true EP1966363B1 (fr) 2012-10-24

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ID=37836934

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06819024A Active EP1966363B1 (fr) 2005-12-29 2006-12-13 Inhibition des proprietes corrosives d'agents de nettoyage liquides contenant de l'hypochlorite

Country Status (6)

Country Link
US (1) US20080274934A1 (fr)
EP (1) EP1966363B1 (fr)
DE (1) DE102005063065A1 (fr)
ES (1) ES2394363T3 (fr)
PL (1) PL1966363T3 (fr)
WO (1) WO2007079881A1 (fr)

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ITMI20021693A1 (it) * 2002-07-30 2004-01-30 3V Sigma Spa Composizioni liquide stabilizzate contenenti cloro attivo

Also Published As

Publication number Publication date
ES2394363T3 (es) 2013-01-31
WO2007079881A1 (fr) 2007-07-19
PL1966363T3 (pl) 2013-03-29
US20080274934A1 (en) 2008-11-06
DE102005063065A1 (de) 2007-07-12
EP1966363A1 (fr) 2008-09-10

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