ES2394363T3 - Inhibition of the corrosive properties of liquid detergents containing hypochlorite - Google Patents
Inhibition of the corrosive properties of liquid detergents containing hypochlorite Download PDFInfo
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- ES2394363T3 ES2394363T3 ES06819024T ES06819024T ES2394363T3 ES 2394363 T3 ES2394363 T3 ES 2394363T3 ES 06819024 T ES06819024 T ES 06819024T ES 06819024 T ES06819024 T ES 06819024T ES 2394363 T3 ES2394363 T3 ES 2394363T3
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- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 239000003599 detergent Substances 0.000 title claims abstract description 27
- 239000007788 liquid Substances 0.000 title claims abstract description 7
- 230000005764 inhibitory process Effects 0.000 title description 2
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 125000003545 alkoxy group Chemical group 0.000 claims abstract description 9
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims abstract description 8
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims abstract description 8
- 229910001854 alkali hydroxide Inorganic materials 0.000 claims abstract description 7
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 6
- -1 alkyl phosphate Chemical compound 0.000 claims abstract description 6
- 239000010452 phosphate Substances 0.000 claims abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 8
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 7
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 150000001412 amines Chemical class 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000004094 surface-active agent Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 4
- 229910052783 alkali metal Inorganic materials 0.000 claims description 4
- 150000001340 alkali metals Chemical class 0.000 claims description 4
- 238000004061 bleaching Methods 0.000 claims description 4
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 159000000011 group IA salts Chemical class 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 claims description 2
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 claims description 2
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 claims description 2
- 150000007513 acids Chemical class 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 229960003237 betaine Drugs 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 229910001415 sodium ion Inorganic materials 0.000 claims description 2
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims 1
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 claims 1
- 239000004584 polyacrylic acid Substances 0.000 claims 1
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 239000002609 medium Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
- 235000021317 phosphate Nutrition 0.000 description 3
- 150000003009 phosphonic acids Chemical class 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- 125000003342 alkenyl group Chemical group 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 239000000645 desinfectant Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- UUFQTNFCRMXOAE-UHFFFAOYSA-N 1-methylmethylene Chemical compound C[CH] UUFQTNFCRMXOAE-UHFFFAOYSA-N 0.000 description 1
- CIEZZGWIJBXOTE-UHFFFAOYSA-N 2-[bis(carboxymethyl)amino]propanoic acid Chemical compound OC(=O)C(C)N(CC(O)=O)CC(O)=O CIEZZGWIJBXOTE-UHFFFAOYSA-N 0.000 description 1
- 125000006539 C12 alkyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 101100167062 Caenorhabditis elegans chch-3 gene Proteins 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 240000007049 Juglans regia Species 0.000 description 1
- 235000009496 Juglans regia Nutrition 0.000 description 1
- 229910019093 NaOCl Inorganic materials 0.000 description 1
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 229940094506 lauryl betaine Drugs 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- DVEKCXOJTLDBFE-UHFFFAOYSA-N n-dodecyl-n,n-dimethylglycinate Chemical compound CCCCCCCCCCCC[N+](C)(C)CC([O-])=O DVEKCXOJTLDBFE-UHFFFAOYSA-N 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- SATVIFGJTRRDQU-UHFFFAOYSA-N potassium hypochlorite Chemical compound [K+].Cl[O-] SATVIFGJTRRDQU-UHFFFAOYSA-N 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 230000019635 sulfation Effects 0.000 description 1
- 238000005670 sulfation reaction Methods 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1
- 235000020234 walnut Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- C11D3/395—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
Landscapes
- 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)
Abstract
Utilización de una combinación de hidróxido alcalino, silicato alcalino, sulfato de alquilo-(alcoxi)n con n>=0,5hasta 10 y fosfato de alquilo en un detergente líquido acuoso que contiene hipoclorito, para reducir la corrosividaddel hipoclorito en las superficies metálicas.Use of a combination of alkali hydroxide, alkali metal silicate, alkyl sulfate- (alkoxy) n with n> = 0.5 to 10 and alkyl phosphate in an aqueous liquid detergent containing hypochlorite, to reduce the corrosivity of hypochlorite on metal surfaces.
Description
Inhibición de las propiedades corrosivas de los detergentes líquidos que contienen hipoclorito Inhibition of the corrosive properties of liquid detergents containing hypochlorite
La presente invención se refiere a la disminución de la corrosividad del hipoclorito en las superficies metálicas al emplear detergentes líquidos que contengan hipoclorito para la limpieza de superficies metálicas. The present invention relates to the decrease in corrosivity of hypochlorite on metal surfaces by using liquid detergents containing hypochlorite for cleaning metal surfaces.
Los detergentes para superficies duras, por ejemplo, detergentes para cuartos de baño y cocinas, han sido siempre polvos muy abrasivos, que contenían pequeñas cantidades de tensoactivos y se conocían como polvos abrasivos o para restregar. Eran agresivos no solo para las manos del usuario sino también con la superficie, con la cual entraban en contacto con el objetivo de limpiarla. En algunos casos se incorporaba un blanqueante a este tipo de polvo, para romper las impurezas por oxidación y de ese modo facilitar su eliminación. Incluso los detergentes abrasivos modernos que tienen una composición claramente más agradable para la piel, estos detergentes cuentan con el efecto de la sustancia abrasiva para eliminar las impurezas, entre las cuales se tienen que eliminar residuos de jabón, que proceden en general básicamente de la higiene personal, de las superficies duras como por ejemplo de las baldosas de los cuartos de baño o del lavamanos. Detergents for hard surfaces, for example, detergents for bathrooms and kitchens, have always been very abrasive powders, which contained small amounts of surfactants and were known as abrasive or scrubbing powders. They were aggressive not only for the user's hands but also with the surface, with which they came into contact with the objective of cleaning it. In some cases a bleach was incorporated into this type of powder, to break down the impurities by oxidation and thereby facilitate their removal. Even modern abrasive detergents that have a clearly more pleasant composition for the skin, these detergents have the effect of the abrasive substance to eliminate impurities, among which you have to remove soap residues, which generally come basically from hygiene personal, hard surfaces such as bathroom tiles or sink.
Para eliminar las impurezas, habitualmente se requiere tras el empleo del detergente, el uso de un trapo seco o húmedo para restregar la suciedad. Además se desea que el detergente penetre en la suciedad que se encuentra en la superficie y facilite así la eliminación de la suciedad de la superficie. El hipoclorito sódico es conocido como blanqueante muy eficaz y se utiliza desde hace tiempo en el lavado de tejidos, junto con jabones y/o tensoactivos sintéticos, para eliminar manchas y todo tipo de impurezas. Normalmente, se vende en concentraciones de un 2 hasta un 10% en peso en agua y se utiliza para los quehaceres domésticos. Mientras que al emplear sustancias que contienen hipoclorito se obtiene una potencia desinfectante importante y muy buenos resultados en la limpieza de las superficies duras, se observa que en algunos casos la superficie más sensible sufre una alteración. Esta puede oscilar entre un ligero impacto en la impresión óptica hasta la aparición de cavidades o agujeros en la superficie o incluso la formación de picaduras, que en los casos graves normalmente solo aparecen al emplear el medio desinfectante de forma desproporcionada. To remove impurities, the use of a dry or damp cloth to scrub dirt is usually required after the use of the detergent. Furthermore, it is desired that the detergent penetrates the dirt that is on the surface and thus facilitates the removal of dirt from the surface. Sodium hypochlorite is known as a very effective bleach and has been used for a long time in the washing of tissues, together with soaps and / or synthetic surfactants, to remove stains and all kinds of impurities. Normally, it is sold in concentrations of 2 to 10% by weight in water and is used for household chores. While when using substances that contain hypochlorite an important disinfectant power is obtained and very good results in the cleaning of hard surfaces, it is observed that in some cases the most sensitive surface undergoes an alteration. This can range from a slight impact on the optical impression to the appearance of cavities or holes in the surface or even the formation of pitting, which in severe cases usually only appears when disinfectant means are used disproportionately.
En lo que se refiere a superficies sensibles se trata de superficies de metal, por ejemplo, de acero, como las de los fregaderos, como las superficies exteriores de los lavaplatos o bien los revestimientos de armarios de cocina o de cuarto de baño. Al limpiar dichas superficies existe el peligro de que debido a la corrosividad metálica del hipoclorito se pueda dañar la superficie, en particular cuando el medio que se va a emplear tras su dilución en agua se aplica no diluido y se deja que actúe largo tiempo. Los detergentes que contienen hipoclorito se conocen, por ejemplo, de la EP 311 175, DE 19700799 y EP903403. With regard to sensitive surfaces, these are metal surfaces, for example, steel, such as those in the sinks, such as the exterior surfaces of the dishwashers or the coverings of kitchen cabinets or bathroom cabinets. When cleaning these surfaces there is a danger that due to the metallic corrosivity of the hypochlorite, the surface may be damaged, particularly when the medium to be used after dilution in water is applied undiluted and allowed to act for a long time. Detergents containing hypochlorite are known, for example, from EP 311 175, DE 19700799 and EP903403.
Sorprendentemente se ha averiguado que la adaptación o bien la selección de algunas sustancias del detergente que contiene hipoclorito influye positivamente en el comportamiento de la corrosión. Surprisingly, it has been found that the adaptation or selection of some substances of the hypochlorite-containing detergent positively influences the corrosion behavior.
El objeto de la presente invención es la utilización de una combinación de hidróxido alcalino, silicato alcalino, sulfato de alquilo-(alcoxi)n con n=0,5 hasta 10 y fosfato de alquilo en un detergente líquido acuoso que contiene hipoclorito, para reducir la corrosividad del hipoclorito en las superficies metálicas. Preferiblemente la superficie metálica es una superficie de acero, puesto que entonces el efecto de mejora de la combinación empleada conforme a la invención es claramente pronunciado. La combinación empleada conforme a la invención es preferiblemente un componente del detergente que contiene hipoclorito. The object of the present invention is the use of a combination of alkali hydroxide, alkali silicate, alkyl sulfate- (alkoxy) n with n = 0.5 to 10 and alkyl phosphate in an aqueous liquid detergent containing hypochlorite, to reduce the corrosivity of hypochlorite on metal surfaces. Preferably the metal surface is a steel surface, since then the effect of improving the combination used according to the invention is clearly pronounced. The combination used according to the invention is preferably a component of the hypochlorite-containing detergent.
En una configuración preferida de la invención el detergente contiene un 0,5 hasta 10% en peso, en particular un 2 hasta 5,5% en peso de hipoclorito alcalino. Aunque existen otros hipocloritos alcalinos como el hipoclorito potásico, el que más se emplea es el hipoclorito sódico. En las soluciones comerciales a base de hipoclorito sódico a menudo existen cantidades considerables de sales de cloruro. Estas se pueden emplear sin problemas para fabricar un medio que mejore la corrosión conforme a la invención, de manera que no dependa necesariamente del empleo de NaOCl altamente puro. In a preferred configuration of the invention the detergent contains 0.5 to 10% by weight, in particular 2 to 5.5% by weight of alkaline hypochlorite. Although there are other alkaline hypochlorites such as potassium hypochlorite, the most commonly used is sodium hypochlorite. In commercial solutions based on sodium hypochlorite there are often considerable amounts of chloride salts. These can be used without problems to manufacture a medium that improves corrosion according to the invention, so that it does not necessarily depend on the use of highly pure NaOCl.
Los medios que contienen hipoclorito son alcalinos, por lo que es preferible conforme a la invención, que el detergente contenga más de un 0% en peso hasta un 5% en peso, en particular un 0,1% en peso hasta un 2% en peso de hidróxido alcalino. The hypochlorite-containing media is alkaline, so it is preferable according to the invention that the detergent contains more than 0% by weight to 5% by weight, in particular 0.1% by weight up to 2% by weight. alkali hydroxide weight.
Preferiblemente el medio contiene más de un 0% en peso hasta un 5% en peso, en particular un 0,1% en peso hasta un 2,5% en peso de silicato alcalino. De esta forma no solo mejora el comportamiento de la corrosión, sino que también la estabilidad del hipoclorito durante su almacenamiento. Preferably the medium contains more than 0% by weight up to 5% by weight, in particular 0.1% by weight up to 2.5% by weight of alkali metal silicate. In this way not only improves the behavior of corrosion, but also the stability of hypochlorite during storage.
Otro componente de la combinación empleada conforme a la invención es un tensoactivo en forma de un sulfato de alquilo-(alcoxi)n, que se puede definir también como un sulfato de un éter alquílico, y que se obtiene por reacción de los alcoholes (preferiblemente con 6 hasta 22 átomos de carbono) con los óxidos de alquileno, en particular el óxido de etileno, y posterior sulfatación y neutralización, en particular con sales alcalinas como los hidróxidos alcalinos. En particular hablamos de un sulfato de éter de alcohol graso-C12-14 alcoxilado con 2 equivalentes de óxido de etileno. El sulfato de alquilo-(alcoxi)n se encuentra preferiblemente en el detergente en un porcentaje entre un 0 y un 5% en peso. El sulfato de alquilo-(alcoxi)n presenta preferiblemente un grupo alquilo-C8-18, en especial un grupo alquilo-C12Another component of the combination used according to the invention is a surfactant in the form of an alkyl- (alkoxy) n sulfate, which can also be defined as a sulfate of an alkyl ether, and which is obtained by reaction of the alcohols (preferably with 6 to 22 carbon atoms) with alkylene oxides, in particular ethylene oxide, and subsequent sulfation and neutralization, in particular with alkaline salts such as alkaline hydroxides. In particular, we are talking about an alkoxylated C12-14 fatty alcohol ether sulfate with 2 equivalents of ethylene oxide. The alkyl- (alkoxy) n sulfate is preferably found in the detergent in a percentage between 0 and 5% by weight. The alkyl- (alkoxy) n sulfate preferably has a C8-18 alkyl group, especially a C12 alkyl group
5 16, grupos alcoxi-OCH2CH2 y/o –OCHCH3CH2-, donde n es preferiblemente una cifra del 1 al 6, en particular del 2 al 5 16, alkoxy-OCH2CH2 and / or -OCHCH3CH2- groups, where n is preferably a figure from 1 to 6, in particular from 2 to
5. 5.
El hidróxido alcalino preferido es el hidróxido sódico, y las sales alcalinas que se mencionan en combinación con el resto de sustancias del medio, son preferiblemente sales sódicas. Así el silicato alcalino es el silicato sódico y/o el The preferred alkali hydroxide is sodium hydroxide, and the alkali salts mentioned in combination with the rest of the substances in the medium are preferably sodium salts. Thus the alkali silicate is sodium silicate and / or the
10 contraión del metal alcalino del sulfato de éter es el ión de sodio. The alkali metal counterion of the ether sulfate is the sodium ion.
El detergente puede contener si se desea hasta un 5% en peso de tensoactivo adicional estable al blanqueo. Se prefieren las betainas, en particular las de la fórmula general I, The detergent may contain up to 5% by weight of additional surfactant stable to bleaching if desired. Betaines are preferred, in particular those of the general formula I,
20 en las que R1 es un grupo alquilo o alquenilo con 6 hasta 22 átomos de carbono o un grupo R4CO-NH-(CH2)n, R2 es hidrógeno o bien un grupo alquilo con 1 hasta 4 átomos de carbono, R3 es hidrógeno o bien un grupo alquilo con 1 hasta 4 átomos de carbono, R4 es un grupo alquilo o alquenilo con 6 hasta 22 átomos de carbono, m es una cifra del 1 al 6 y n una cifra de 1 hasta 3. Los ejemplos de los representantes especialmente adecuados de esta clase de tensoactivos comprenden la C12-18-alquil-dimetilbetaina, que se obtiene en el comercio como la betaina de nuez de In which R1 is an alkyl or alkenyl group with 6 to 22 carbon atoms or an R4CO-NH- (CH2) n group, R2 is hydrogen or an alkyl group with 1 to 4 carbon atoms, R3 is hydrogen or either an alkyl group with 1 to 4 carbon atoms, R4 is an alkyl or alkenyl group with 6 to 22 carbon atoms, m is a figure from 1 to 6 and n a figure from 1 to 3. Examples of especially suitable representatives of this class of surfactants comprise C12-18-alkyl dimethylbetaine, which is commercially available as walnut betaine from
25 coco, y la C10-16-alquil-dimetilbetaina, que se obtiene en el mercado como laurilbetaina. 25 coconut, and C10-16-alkyl dimethylbetaine, which is obtained in the market as laurylbetaine.
Los preparados pueden contener además medios secuestrantes, preferiblemente fosfatos, fosfatos de alquilo, ácidos alquil fosfónicos y entre éstos aquellos que tienen un sustituyente de óxido de amina en el grupo alquilo, conocidos aquí como ácidos fosfónicos de óxido de amina, los ácidos poliacrílicos y/o los ácidos poliacrílicos que presentan The preparations may further contain sequestering media, preferably phosphates, alkyl phosphates, alkyl phosphonic acids and among these those having an amine oxide substituent in the alkyl group, known herein as amine oxide phosphonic acids, polyacrylic acids and / or the polyacrylic acids that have
30 grupos fosfónicos, que también se pueden presentar en forma de sales alcalinas. La incorporación de este tipo de formadores de complejos conduce sorprendentemente a un contenido en brillo especialmente bueno de la superficie dura tratada. Este no se observa cuando en lugar de otros formadores de complejos se emplea, por ejemplo ácido diacético de metilglicina o bien ácido triacético de nitrilo. Los ácidos fosfónicos de óxidos de amina se fabrican normalmente por oxidación de los ácidos aminoalquilfosfónico. Pertenecen preferiblemente al grupo de compuestos 30 phosphonic groups, which can also be presented as alkaline salts. The incorporation of this type of complex formers surprisingly leads to a particularly good gloss content of the treated hard surface. This is not observed when, instead of other complexing agents, it is used, for example, methylglycine diacetic acid or nitrile triacetic acid. Phosphonic acids of amine oxides are normally manufactured by oxidation of aminoalkylphosphonic acids. They preferably belong to the group of compounds
35 de fórmula general (II), 35 of general formula (II),
en las que R5 es un hidrógeno, un grupo –(CH2)x (CHCH3)y-NH2->O o bien un metal alcalino, x es una cifra de 1 hasta 4 e y equivale a 0 ó 1. Entre los ácidos fosfónicos de óxido de amina especialmente preferidos está el óxido de amina a base de ácido aminotrimetilenfosfónico. Preferiblemente existe un 0,01% en peso hasta un 2% en peso where R5 is a hydrogen, a group - (CH2) x (CHCH3) and-NH2-> O or an alkali metal, x is a figure from 1 to 4 and y equals 0 or 1. Among the phosphonic acids of Especially preferred amine oxide is amine oxide based on aminotrimethylene phosphonic acid. Preferably there is 0.01% by weight up to 2% by weight
45 de dichos medios secuestrantes. 45 of said sequestering means.
Además es preferible que el medio contenga un 0,1% en peso hasta un 2% en peso de carbonato, en especial carbonato alcalino. Furthermore, it is preferable that the medium contains 0.1% by weight up to 2% by weight of carbonate, especially alkali carbonate.
50 Adicionalmente a los componentes mencionados, los preparados conforme a la invención que mejoran la corrosión pueden contener pequeñas cantidades de una o varias sustancias aromatizantes o colorantes estables a agentes oxidantes de blanqueo. El componente aromático contenido es preferiblemente de una volatilidad relativamente superior a la de los componentes que son responsables del olor de un medio de blanqueo. In addition to the aforementioned components, the preparations according to the invention that improve corrosion may contain small amounts of one or more flavoring substances or dyes stable to bleaching oxidizing agents. The aromatic component contained is preferably of a relatively higher volatility than the components that are responsible for the smell of a bleaching medium.
Los medios estabilizados conforme a la invención pueden fabricarse de un modo sencillo mezclando las sustancias antes mencionadas en las cantidades indicadas. Se emplean tras la dilución con agua o si se desea sin diluir. The stabilized media according to the invention can be manufactured in a simple manner by mixing the aforementioned substances in the amounts indicated. They are used after dilution with water or if desired undiluted.
Ejemplos (no conforme a la invención) Examples (not according to the invention)
Se ha estudiado el método de corrosión de preparados, que contienen hipoclorito. Para ello se han colocado hojas de chapa de acero en los preparados no diluidos y se ha determinado la velocidad relativa de corrosión al cabo de 14 días, 21 días y 25 días. EL aspecto de las hojas o láminas de acero se muestra en las figuras 1 y 2, donde la figura 1 muestra la superficie tras la colocación en el hipoclorito sódico (2% en peso en agua) y la figura 2 muestra la The method of corrosion of preparations, which contain hypochlorite, has been studied. For this, sheet steel sheets have been placed in undiluted preparations and the relative corrosion rate has been determined after 14 days, 21 days and 25 days. The appearance of the steel sheets or sheets is shown in Figures 1 and 2, where Figure 1 shows the surface after placement in the sodium hypochlorite (2% by weight in water) and Figure 2 shows the
10 superficie tras la colocación en un medio acuoso, que contenía un 2% en peso de hipoclorito sódico, un 1,5% en peso de NaOH, un 3% en peso de Na-C14-16-alquil(etoxi)2-sulfato y un 2% en peso de silicato sódico. La muestra 3 es lo que ocurre transcurridos 14 días y la muestra 4 al cabo de 21 días y la muestra 5 después de 25 días. Se observa el daño o perjuicio claramente menor de la superficie metálica gracias al empleo de la combinación conforme a la invención. 10 surface after placement in an aqueous medium, containing 2% by weight of sodium hypochlorite, 1.5% by weight of NaOH, 3% by weight of Na-C14-16-alkyl (ethoxy) 2-sulfate and 2% by weight of sodium silicate. Sample 3 is what happens after 14 days and sample 4 after 21 days and sample 5 after 25 days. The clearly minor damage or loss of the metal surface is observed thanks to the use of the combination according to the invention.
Claims (8)
- 25 7. Utilización conforme a una de las reivindicaciones 1 hasta 6, que se caracteriza por que el detergente contiene sulfato de alquilo-(alcoxi)n con un grupo alquilo-C8-18, en especial un grupo alquilo-C12-16, grupos alcoxi-OCH2CH2 y/o –OCHCH3CH2-, donde n es una cifra del 1 al 6, en particular del 2 al 5 y en peso hasta un 5% en peso, y por que posee un contraión del metal alcalino para el grupo sulfato. Use according to one of claims 1 to 6, characterized in that the detergent contains alkyl- (alkoxy) n sulfate with a C8-18 alkyl group, especially a C12-16 alkyl group, groups alkoxy-OCH2CH2 and / or –OCHCH3CH2-, where n is a figure from 1 to 6, in particular from 2 to 5 and by weight up to 5% by weight, and because it has a counterion of the alkali metal for the sulfate group.
- 30 8. Utilización conforme a una de las reivindicaciones 1 hasta 7, que se caracteriza por que el hidróxido alcalino es el hidróxido sódico, el silicato alcalino es el silicato sódico y/o el contraión del metal alcalino es el ión de sodio. Use according to one of claims 1 to 7, characterized in that the alkali metal hydroxide is sodium hydroxide, the alkali metal silicate is the sodium silicate and / or the counterion of the alkali metal is the sodium ion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005063065A DE102005063065A1 (en) | 2005-12-29 | 2005-12-29 | Corrosion inhibition of liquid hypochlorite detergent |
| DE102005063065 | 2005-12-29 | ||
| PCT/EP2006/011960 WO2007079881A1 (en) | 2005-12-29 | 2006-12-13 | Inhibiting the corrosive properties of liquid cleaning agents containing hypochlorite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2394363T3 true ES2394363T3 (en) | 2013-01-31 |
Family
ID=37836934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES06819024T Active ES2394363T3 (en) | 2005-12-29 | 2006-12-13 | Inhibition of the corrosive properties of liquid detergents containing hypochlorite |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20080274934A1 (en) |
| EP (1) | EP1966363B1 (en) |
| DE (1) | DE102005063065A1 (en) |
| ES (1) | ES2394363T3 (en) |
| PL (1) | PL1966363T3 (en) |
| WO (1) | WO2007079881A1 (en) |
Family Cites Families (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3393153A (en) * | 1965-12-20 | 1968-07-16 | Procter & Gamble | Novel liquid bleaching compositions |
| US3655566A (en) * | 1970-03-05 | 1972-04-11 | Purex Corp Ltd | Bleach having stable brighteners |
| US3666680A (en) * | 1970-03-05 | 1972-05-30 | Purex Corp Ltd | Method of combining optical brighteners with polymers for stability in bleach and encapsulated product |
| US4193888A (en) * | 1971-09-01 | 1980-03-18 | Colgate-Palmolive Company | Color-yielding scouring cleanser compositions |
| US3876551A (en) * | 1972-02-14 | 1975-04-08 | Int Flavors & Fragrances Inc | Perfumed aqueous hypochlorite composition and method for preparation of same |
| US4116849A (en) * | 1977-03-14 | 1978-09-26 | The Procter & Gamble Company | Thickened bleach compositions for treating hard-to-remove soils |
| US4117994A (en) * | 1977-06-21 | 1978-10-03 | Irvin Industries Canada Ltd. | Parachute with canopy opening assist and opening control |
| US4113645A (en) * | 1977-07-26 | 1978-09-12 | Polak's Frutal Works, Inc. | Bleach compositions containing perfume oils |
| US4388204A (en) * | 1982-03-23 | 1983-06-14 | The Drackett Company | Thickened alkali metal hypochlorite compositions |
| US5180514A (en) * | 1985-06-17 | 1993-01-19 | The Clorox Company | Stabilizing system for liquid hydrogen peroxide compositions |
| US4828723A (en) * | 1987-07-15 | 1989-05-09 | Colgate-Palmolive Company | Stable non-aqueous suspension containing organophilic clay and low density filler |
| US4830782A (en) * | 1987-08-31 | 1989-05-16 | Colgate-Palmolive Company | Hot water wash cycle built nonaqueous liquid nonionic laundry detergent composition containing amphoteric surfactant and method of use |
| GB8723675D0 (en) * | 1987-10-08 | 1987-11-11 | Unilever Plc | Sanitizer |
| US5139695A (en) * | 1988-01-14 | 1992-08-18 | Ciba-Geigy Corporation | Stable bleaching compositions containing fluorescent whitening agents |
| US4986926A (en) * | 1989-04-10 | 1991-01-22 | The Drackett Company | Thickened alkali metal hypochlorite compositions |
| US5034150A (en) * | 1989-05-03 | 1991-07-23 | The Clorox Company | Thickened hypochlorite bleach solution and method of use |
| US5185096A (en) * | 1991-03-20 | 1993-02-09 | Colgate-Palmolive Co. | Aqueous liquid automatic dishwashing detergent composition comprising hypochlorite bleach and bleach stabilizer |
| US5229027A (en) * | 1991-03-20 | 1993-07-20 | Colgate-Palmolive Company | Aqueous liquid automatic dishwashing detergent composition comprising hypochlorite bleach and an iodate or iodide hypochlorite bleach stabilizer |
| JP2721804B2 (en) * | 1993-12-28 | 1998-03-04 | クリーンケミカル株式会社 | Disinfectant cleaning agent for medical equipment |
| DE4413433C2 (en) * | 1994-04-18 | 1999-09-16 | Henkel Kgaa | Aqueous bleach |
| CZ60097A3 (en) * | 1994-08-30 | 1997-07-16 | Procter & Gamble | Chelating agents increasing photobleaching |
| DE19700799C2 (en) * | 1997-01-13 | 1999-02-04 | Henkel Kgaa | Aqueous textile bleach |
| AR016292A1 (en) * | 1997-06-27 | 2001-07-04 | Procter & Gamble | PRO-FRAGRANCE COMPOUND, DETERGENT COMPOSITION FOR WASHING CLOTHES, SOFTENING COMPOSITIONS OF FABRICS AND COMPOSITION THAT INCLUDES A SUBSTRATE CONTAINING IT |
| US6083892A (en) * | 1997-08-19 | 2000-07-04 | The Procter & Gamble Company | Automatic dishwashing detergents comprising β-ketoester pro-fragrances |
| EP0903403B1 (en) * | 1997-09-19 | 2003-04-16 | The Procter & Gamble Company | Stable bleaching compositions |
| DE69737652D1 (en) * | 1997-09-19 | 2007-06-06 | Procter & Gamble | Self-thickening bleaching compositions |
| US6448215B1 (en) * | 1998-01-16 | 2002-09-10 | The Procter & Gamble Company | Stable colored thickened bleaching compositions |
| ES2232928T3 (en) * | 1998-01-16 | 2005-06-01 | THE PROCTER & GAMBLE COMPANY | WHITE, COLORED, STABLE WHITENING COMPOSITIONS. |
| DE19803054A1 (en) * | 1998-01-28 | 1999-07-29 | Henkel Kgaa | Hypochlorite bleaching and disinfecting compositions, especially for hard surfaces, containing cleaning enhancer |
| US6506718B1 (en) * | 1998-09-01 | 2003-01-14 | The Procter & Gamble Company | Bleaching compositions |
| US6894015B1 (en) * | 1998-11-11 | 2005-05-17 | Procter & Gamble Company | Bleaching compositions |
| DE19855329A1 (en) * | 1998-12-01 | 2000-06-08 | Henkel Kgaa | Preparations containing active chlorine with stabilized optical brighteners |
| KR100490564B1 (en) * | 2002-07-23 | 2005-05-19 | 주식회사 메디슨 | Apparatus and method for recognizing organ from ultrasound image signal |
| ITMI20021693A1 (en) * | 2002-07-30 | 2004-01-30 | 3V Sigma Spa | STABILIZED LIQUID COMPOSITIONS CONTAINING ACTIVE CHLORINE |
-
2005
- 2005-12-29 DE DE102005063065A patent/DE102005063065A1/en not_active Ceased
-
2006
- 2006-12-13 EP EP06819024A patent/EP1966363B1/en active Active
- 2006-12-13 PL PL06819024T patent/PL1966363T3/en unknown
- 2006-12-13 ES ES06819024T patent/ES2394363T3/en active Active
- 2006-12-13 WO PCT/EP2006/011960 patent/WO2007079881A1/en not_active Ceased
-
2008
- 2008-06-25 US US12/146,277 patent/US20080274934A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20080274934A1 (en) | 2008-11-06 |
| PL1966363T3 (en) | 2013-03-29 |
| DE102005063065A1 (en) | 2007-07-12 |
| WO2007079881A1 (en) | 2007-07-19 |
| EP1966363B1 (en) | 2012-10-24 |
| EP1966363A1 (en) | 2008-09-10 |
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