ES2285847T3 - WATERPROOF FOAM CLEANER. - Google Patents

Abstract

A cleaning composition comprising: (a) a first aqueous liquid comprising an oxidant; and (b) a second aqueous liquid comprising a gas generating agent; characterized in that at least one of the first and second liquids includes a betaine surfactant and an aryl sulfonate surfactant, and in which at least one of the first and second liquids that includes a betaine surfactant and a sulphonate surfactant Aryl is viscoelastic, keeping the first and second liquids separated before forming a mixture during administration to a surface to be treated, whereby the mixture generates a foam sufficient for cleaning efficiency and stability.

Description

Foaming drain cleaner.

Background of the invention 1. Field of the invention

The present invention relates to foaming cleaning compositions and, in particular, to a foaming in-situ cleaning composition that incorporates a bleach and is formulated to have utility as a drain cleaner, or as a hard surface cleaner.

2. Description of the related technique

US Patent 5,084,546 issued to Hall describes a personal care product, specifically a foaming shower gel. As such, foam generating components must be biologically compatible. Accordingly, Hal instructs only citric acid and a carbonate or bicarbonate to generate carbon dioxide gas. Nothing is mentioned that suggests a peroxide / hypochlorite system, nor is it described for use in surface cleaning or for unblocking drains. The published Japanese applications granted to Ishimatsu et al . JP 59-24798 and JP 60-32497; JP 59-164399, to Miyano et al .; and Sakuma , JP 57-74379, all of them describe and claim a binary foaming cleanser that have utility as drain unblockers. Miyano et al . They specifically describe the advantages of a foam for unblocking drains. Ishimatsu et al . and Miyano et al . describes an aqueous peroxide solution containing 0.25-25% of active component paired with an aqueous solution of 0.25-6% hypochlorite, and both references instruct the inclusion of surfactants with one or both solutions to increase formation of foam However, none of these references instruct suggest and describe
Ben a thickened formulation, nor any of the advantages and characteristics of foam associated with it.

In US Pat. No. 5,767,055 granted to Choy et al . A hypochlorite composition is described together with a chelating agent / forming solution in a dual chamber container.

Drain cleaners have been formulated with a variety of active substances in an effort to eliminate the variety of materials that can cause blockage or restriction of drains. Such active substances may include acids, bases, enzymes, solvents, reducing agents, oxidants and bioorganic compounds. Tobiason , US document 5,264,146, Steer et al ., US document. 5,630,833 and Taylor, Jr. et al ., US document. 4,664,836, all of them describe dry compounds that generate foam when mixed with water in a drain. Kuenn , US document 4,691,710 describes a cleaning composition for garbage disposal in sinks, which is atypical acid and sodium bicarbonate to generate gas after contact with water. This composition requires mechanical cutting obtained by the shredder to help foam generation. Davis , US document 4,206,068 describes an exothermic composition for unblocking drains comprising an oxidant and a reducing agent in a compartmentalized container.

Summary of the present invention

In view of the prior art, there remains a need for a foam-generating cleaning composition capable of releasing a high percentage of active substance and having a prolonged contact time on surfaces that are not horizontal. In addition, there remains a need for a stable in-situ foam generating composition during storage and which can be formulated economically.

It is another object of the present invention to provide a composition capable of forming a foam carrying active substance in-situ .

It is another object of the present invention provide a composition capable of generating an active cleaner stable foam former.

It is another object of the present invention provide a composition with two components and means of containment that isolate each component during the storage.

It is another object to provide a composition for opening of drains that is formulated so that it is safe Store and use.

It is another object of the present invention provide a composition capable of producing a foam that contain active substance, which can reach all parts affected from a drain.

It is another object of the present invention provide a foam forming cleaning composition that possess used as a drain cleaner under a viscoelastic rheology.

It is another object of the present invention provide a drain cleaning composition that is highly effective

It is another object of the present invention provide a cleaning composition that is stable during normal storage and at high or very low temperatures.

It is another object of the present invention provide a composition that has a viscoelastic rheology and a prolonged relaxation time to provide properties of Beneficial flow during dispensing.

More specifically, the composition is a product of two liquids that are kept separate before forming a mixture during administration to a surface to be treated, with which mixes enough foam for stability and the effectiveness of cleaning. A first liquid includes an oxidant, preferably a hypohalite or a hypohalite generating agent (hereinafter "hypohalite") and a second liquid includes a gas generating agent, preferably an agent containing or releases peroxygen. Since the two liquids are separated initially, the oxidant can be maintained in an environment without gas generating agent and otherwise carry your activity cleaner and stability until the moment of use. When allows the mixing of the two liquids, for example pouring simultaneously in a drain, the hypohalite and the peroxygen react and release oxygen gas according to the following reaction equation:

NaOCl + H 2 O 2, O 2 (g) + NaCl + H2O

The released gas contacts the surfactant at the solution, creating a foam that expands to fill completely the pipe. The expanded foam contains an excess of hypohalite, which acts by cleaning the drain. The resulting foam is stable and preferably characterized by a higher density at about 0.1 g / ml, an active percentage of about 0.5-15, a half-life greater than about 30 minutes; a volume greater than about 500 ml; and an index initial foam development of approximately 10-50 ml / s. Foam stability is defined as the resistance of the foam to a force that tends to collapse or move the foam. The foam is further characterized by a foam ratio: liquid of at least 1: 1, preferably 2: 1, more preferably 3: 1; and a sufficient foam height to give a column greater than twelve cm in the drain (measured from the center, or the lowest point of the Siphon type P, and for a drain 3.2 cm in diameter), more preferably greater than seventeen cm and more preferably from seventeen to thirty-one cm. It's more preferable, in terms of foam volume and height in the drain, a sufficient quantity to reach the mechanism of drain retention, a site of contamination with hairs and / or soap. Normally these retention mechanisms are placed about twenty cm above the vertical pipe. Preferably, the foam would contain more than 0.1% of substance active, more preferably more than 0.5% active substance and more preferably between 0.75 and 3% active substance. A time of active contact, or the half-life of the foam, should be between 0.5 and 4 hours, preferably between 1 and 8 hours. The half-life of the foam is the elapsed time between maximum development volume of the foam and the 50% reduction of the volume thereof, in the absence of external forces (other than gravity) acting on the foam In addition, the foam is self-generated, by the reaction of the components of the composition, and does not require mechanical agitation or other forms of physical activation.

In a preferred embodiment of the In the present invention, one or all liquids include an agent or thickener system present in an amount such that when liquids form a mixture during administration in a surface, the mixture results in a dense and stable foam for efficiency and stability of cleaning. Therefore, when let the initially separated liquids interact, the resulting liquid cleaning composition that is administered to the surface will possess the cleaning or bleaching activity and the stability suitable for cleaning or bleaching said surface. The term "liquid", as used herein Descriptive report, may include liquids, solutions and homogeneous suspensions. Preferably a liquid is contemplated bullying; however, non-aqueous liquids enter the scope of the invention. The thickening agent or system should provide the corresponding liquid with both a viscous component as an elastic component; both components are more preferred to achieve the desired characteristics of the foam. Plus preferably, the thickening agent or system provides the corresponding liquid a viscoelastic rheology; however, the thickened, non-elastic or slightly elastic system can provide performance benefits and therefore is within the scope of the present invention. The composition of thickener system is less important than achieving minus one of the desired qualities for the foam, as defined in the present specification.

The present invention also relates to a container that keeps the two liquids separated until administration and provides such administration, during which the mixture is formed with maintained pH and administered to a surface to be treated. The container includes a compartment for the liquid containing the hypohalite and another compartment for the liquid containing peroxygen. One or both of these compartments may contain the thickener system or agents that is present in an amount sufficient to thicken and for the stability of the liquid, as described above. According to one aspect of the invention, the container can have separate administration channels for the two liquid components to administer the two liquids, whereby the mixture is formed. These administration channels can be constructed to provide simultaneous release of the two liquids to the outside of the container, whereby the two liquids come together and form the mixture. Alternatively, the separate administration channels can communicate with a mixing space in which the two liquids form the mixture and from which the mixture is released outside the container. An example of such a container is that described in US Pat. 5,767,055, Choy et al .

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The present invention also includes a procedure to clarify restrictions caused by materials organic in the pipes, characterized in that it comprises: (a) Enter a drain.

a cleaning composition that understands:

(to)

first aqueous liquid comprising a oxidizer;

Y

(b)

a second aqueous liquid comprising a generating agent of gas;

That characterized because at least one of the first and second liquids includes a betaine surfactant and a sulphonate surfactant of aryl, and in which at least one of the liquids first and second that includes a betaine surfactant and a surfactant of aryl sulphonate is viscoelastic, keeping liquids first and second separated before forming a mixture during administration to a surface to be treated, thereby mixing generates enough foam for the efficiency and stability of the cleaning or

a composition for cleaning that understands:

(to)

a first aqueous liquid having a viscosity of at least approximately 100 cP, a relative elasticity of at least approximately 1 s / Pa and a relaxation time of at least about 0.3 s, and comprising an oxidant and a surfactant;

(b)

a second aqueous liquid having a viscosity of at least approximately 50 cP, a relative elasticity of at least approximately 1 s / Pa and a relaxation time of at least about 0.1 s, and comprising a gas generating agent and a surfactant;

where the second most aqueous liquid  dense than the first aqueous liquid and the aqueous liquids being first and second arranged in a dual chamber container of so that they are kept separate before forming a mixture during its administration to a surface to be treated, thereby mixing generates enough foam for the efficiency and stability of the cleaning.

and (b) allow the foam generated by the cleaning composition remain in contact with the material organic restriction with which you will react.

Briefly, a first embodiment of the present invention comprises a cleaning composition that comprises: (a) a first aqueous liquid comprising an oxidant; Y (b) a second aqueous liquid comprising a generating agent of gas; which is characterized because at least one of the liquids first and second includes a betaine surfactant and a surfactant of aryl sulphonate, and in which at least one of the liquids first and second which includes an aryl sulfonate surfactant It is viscoelastic, keeping the liquids first and second separated before forming a mixture during administration to a surface to be treated, so that the mixture generates a foam sufficient for the efficiency and stability of cleaning.

It should be noted that, as used herein Descriptive memory, the term "cleaning" refers to general to a chemical, physical or enzymatic treatment that has as a result the reduction or elimination of unwanted material, and "cleaning composition" specifically includes drain unclogs, hard surface cleaners and bleaching compositions. The cleaning composition may be consisting of a variety of chemical, physical or enzymatically active, including solvents, acids, bases, oxidizers, reducing agents, enzymes, detergents and compounds bioorganics Unless otherwise specified, the Percentages of all ingredients are percentages by weight.

For the purposes of the discussion of the invention described herein, a typical Domestic sink drain comprises four sections: one vertical section, from there to a U-bend (or siphon type P), from there to a 90 degree elbow and, finally, a drain pipe horizontal.

A viscoelastic rheology is conferred on a single liquid or both liquids of the composition through a binary system that includes betaine or sulfobetaine which possesses a C 14 -C 18 alkyl group or a C 14 alkylamino or alkylamido group 10} -C 18, and an anionic organic counterion that is thought to stimulate elongated micelles. Such systems are described more fully in US documents. 4,900,467 and 5,389,157, granted to Smith , and assigned to the assignee of the present invention. Preferably, the betaine is a C 14 -C 18 alkyl betaine and the counterion is a C 2-6 alkyl carboxylate, aryl carboxylate, C 2-10 alkyl sulfonate, sulfonate of aryl, sulfated aryl or C 2-10 alkyl alcohols, and mixtures thereof. More preferably, the counterion is an aryl sulfonate, for example sodium xylene sulfonate. The counterion may include substituents that are chemically stable with the active cleaning compound. Preferably, the substituents are alkyl or alkoxy groups of 1-4 carbons, halogens and nitro groups, all of which are stable with most of the active substances, including hypochlorite. The viscosity of the formulations of the present invention may vary from slightly higher than that of water to several thousand centipoise (cP). From the consumer's point of view, a viscosity range from about 20 cP to 2500 cP is preferred. A preferred viscosity range for the first liquid (containing the oxidant) is about 100 to 2500 cP, more preferred is 500 to 2200 cP. A preferred viscosity for the second liquid (gas generator) is about 500-1000 cP, more preferred is 100-800 cP.

The present invention also relates to a composition and procedure to clean drains, where the composition comprises aqueous solutions kept separately from:

(to)

a first liquid comprising a hypohalite compound; Y

(b)

A second liquid comprising a peroxygen compound; and in the that at least one of the liquids (A) or (b) is viscous.

Liquids (a) and (b) are kept separate during storage and combined at the time of use or immediately before use. Preferably, the liquids (a) and (b) they are kept in a dual chamber or jar with compartments and they are poured simultaneously into the drain in which the foam generation The resulting foam is stable and dense and It contains a high percentage of active cleaning substance, especially hypohalite, which covers the vertical portions and top of the Siphon type P of a drain. The rheology of each composition provides a favorable rate of foam generation and residence time, which results in excellent cleaning efficiency The foam generation rate should be relatively low, preferably less than about 50 ml / s and the foam should remain stable for a period prolonged time The rheology also facilitates the filling of the container, for example during manufacturing, and provides dumping properties acceptable by the consumer during dispensing and use. The preferred viscoelastic rheology can be conferred by a thickener, preferably a thickener surfactant Although only one solution can be viscoelastic, it he prefers that they are both viscoelastic, and they can be used or different agents or thickener systems. More preferably, the viscosity is conferred on both liquids (a) and (b) by it thickening agent or system.

Therefore, it is an advantage of the present invention that the composition is chemically stable and in phases, and retains such stability at both high and low temperatures.

It is another advantage of the present invention that, When formulated as a drain cleaner, the composition sparkling provides high contact time, which improves The effectiveness of the cleaner.

It is another advantage of the present invention that the better efficiency resulting from longer contact time allows Safer drain cleaning formulations.

It is another advantage of the present invention that the composition generates a stable foam in-situ that It contains active substance.

It is another advantage of the composition of the present invention that the rheology of the composition facilitates the container filling and dispensing.

These and other objects and advantages of this invention will undoubtedly be apparent to experts in the technique after reading the following Detailed Description of the preferred forms of realization.

Description of the figures

Fig. 1 is a graph that compares the indices of foaming of a composition of the present invention With the other compositions.

Detailed description of the embodiments preferred Oxidizing agent

The oxidizing agent, or oxidizing agent, can preferably be selected from several hypohalite producing species, for example halogen bleach selected from the group consisting of alkali and alkaline earth metal salts of hypohalite, haloamines, haloimines, haloimides and haloamides. It is believed that all of them produce hypoalous bleaching species in situ . Preferably, the first oxidizing agent is a hypohalite or a hypohalite generated capable of generating hypoalous bleaching species. As used herein, the term "hypohalite" is used to describe a hypohalite or a hypohalite generator, unless otherwise indicated. Hypochlorite and hypochlorite producing compounds in aqueous solution are preferred, although hypodromite is also suitable. Representative hypochlorite producing compounds include sodium, potassium, lithium and calcium hypochlorite, chlorinated trisodium dodecahydrate, potassium and sodium dichloroisocyanate and trichlorocyanuric acid. Sources of organic bleach suitable for use include heterocyclic imides of N-bromo and N-chloro, such as tribromo and trichlorocyanuric and cyanuric acid, dibromo and dichlorocyanuric acid, and potassium and sodium salts thereof, succinimide N- brominated and N-chlorinated, malonimide, phthalimide and naphthalimide. Also suitable are hydantoins, such as dibromo and dichloro dimethyl hydantoin, chlorobromodimethyl hydantoin, N-chlorosulfamide (haloamide) and chloramine (haloamine). Particularly preferred in this invention is sodium hypochlorite having the chemical formula NaOCl, in a variable amount of about 0.1 percent by weight to about 15 percent by weight of the first liquid, more preferably about 0.1 to 10 weight percent, and more preferably about 1 to 8 weight percent. The oxidizing agent may be present in a stoichiometric amount with the gas generating agent for foam generation. In this case, it is preferred to include a different active cleaning substance with one or both first and second liquids. More preferable is that the oxidizing agent is present in a stoichiometric excess, to generate foam and to provide cleaning and draining agent dewatering activity.

Gas generating agent

The gas generating agent is a compound that can react with the oxidizing agent to generate a gas and is preferably a peroxide or a peroxide generated, such as hydrogen peroxide, or a perishable or persal, including peracids and organic and inorganic persalts. , such as peracetic acid and monoperoxysulfate, respectively. In US Pat. No. 4,964,870, granted to Fong et al., a series of peroxides, peracids and persales is described.

Normally, hydrogen peroxide will supplied in liquid form, although other sources of hydrogen of peroxide can also work satisfactorily. (For example, perborate and percarbonate also supply H2O2 in solution). The gas generating agent is present in an amount of approximately 0.01 to 8 percent in weight of the second liquid, preferably about 0.1 to 5 weight percent, more preferably about 0.2 to 3 weight percent

When peroxide is the gas generating agent and a hypohalite is the oxidizing agent, a weight ratio preferred (to provide stoichiometric excess) between hypohalite and peroxide is approximately 20: 1 to 3: 1, plus preferred is about 15: 1 to 7: 1, and more preferred is 12: 1 to 5: 1. A preferred molar ratio (to provide a stoichiometric excess) between hypohalite and peroxide is about 10: 1 to 1: 1, more preferred is about 7: 1 to 5: 4, and more referred from about 5: 1 to 2: 1.

Electrolyte / Buffer

In the first or second liquid you can include an electrolyte / buffer and, preferably, is included in the first liquid, which contains the oxidant, in an amount of effective buffering.

In accordance with the present invention, the Suitable electrolytes / buffers can be selected from the group consisting of a carbonate, a phosphate, a pyrophosphate, a amino carboxylate, a polycarboxylate, a polyacrylate, a phosphonate, an amino phosphonate, a polyphosphonate, a salt of themselves, and a mixture thereof. The electrolyte / buffer is present in a variable amount from 0 to about 5 per weight percent of the first liquid, preferably of about 0.01 to about 4 percent by weight of First liquid

PH adjusting agents

In the first or second liquid or in both liquids there may be a pH adjusting agent, that is, with the oxidizing agent and / or gas generator. In accordance with this invention, the pH adjusting agent maintains the pH of the liquid of so that the active agent thereof is stable and effective- The agent pH adjustment can be alkaline or acid in solution and, in Consequently, serve to adjust and / or maintain the two solutions to an alkaline or acidic pH. In the present invention, each solution is maintains at a pH that is suitable for activity and stability of the oxidizing agent or gas generator and / or the active substance of cleaning. For an alkaline oxidizing agent, such as a hypohalite, the Solution pH is alkaline. When the gas generating agent is peroxygen, the pH is acidic. The pH adjusting agent may be present in an amount effective for pH adjustment, such as between about 0 and about 10 percent by weight of One of the liquids.

Among acidic pH adjusting agents Suitable include: organic acids, especially acids carboxylic acids, such as citric, glycolic or acetic acids, acids weak inorganics such as boric acid or sodium bisulfate, and diluted solutions of strong inorganic acids such as acid sulfuric acid, hydrochloric acid, pyrophosphates, triphosphates, tetraphosphates, silicates, metasilicates, polysilicates and borates, and mixtures of the above. When the gas generating agent is peroxide, a preferred acidic pH adjusting agent is acidic sulfuric. For a liquid that contains peroxygen, especially hydrogen peroxide, it is preferred to keep the pH below approximately 7, more preferably between 3 and 6 to maintain the stability and efficacy of the peroxygen compound. An agent of pH adjustment is present in an amount of 0 to 5 percent in weight in the second liquid, preferably 0.001 to 2 percent in weigh.

Among alkaline pH adjusting agents Preferred include: carbonates, bicarbonates, hydroxides, hydroxide generators and mixtures thereof. When the oxidant It is a hypohalite, a preferred alkaline pH adjusting agent is an alkali metal hydroxide, especially sodium hydroxide. By example, when a hypohalite oxidizing agent is used, the pH of the solution is preferably maintained above about 10, preferably above about 10.5, and more preferably above about 11. It believes that a solution pH greater than 11 is sufficient for both the effectiveness as for the hypohalite cleansing stability. More particularly, it is believed that this solution pH is enough to protect against the autocatalytic destruction of hypohalite that could occur when the solution is formed. A alkaline pH adjusting agent is present in an amount of 0 to 20 percent by weight, in the first liquid, preferably 0.1 at 15 percent by weight.

Thickener

One or both solutions or liquids, first oxidant and second gas generator, are thickened, preferably with a surfactant thickener. Suitable thickeners are as described in the aforementioned Smith patents. Other suitable systems can be found in the descriptions of US Pat. 5,055,219 and 5,011,538 granted to Smith ; U.S. patents 5,462,689 and 5,728,665 granted to Choy et al .

Additional thickeners, such as polymers and gums, they are suitable as long as the characteristics and / or the desired rheology of the foam. More preferred is a thickener viscoelastic binary surfactant comprising a betaine and a anionic counterion.

Betaine

Operational betaines include betaines from C 14-18 alkyl and sulfobetaines of alkyl C_ {14-18}. Especially preferred is betaine. dimethyl cetyl (CEDB), such as Amphosol CBD (a product of Stepan Company brand), with approximately 95% C16, less than 5% C12 / º4 and less than 1% C18. It has been observed that when making reference to the carbon chain lengths of betaine or of Any other compound of the present specification, is contemplate (although not required) polydisperse forms commercial. Therefore, a given chain length within the Preferred range of C 14-18 will be predominantly, but not exclusively, the length specified As used herein in reference to betaine or sulfobetaine, the term "alkyl" includes both saturated and unsaturated groups. Be prefer fully saturated alkyl groups in the presence of hypochlorite The alkylamino and alkylamido betaines C 10-18 and sulfanobetaines that have groups C 14-18 alkyl or alkylamino or alkylamido C 10-18 are also suitable for use in Compositions of the present invention.

Betaine is added at levels that, when Combined with counterion, they are effective thickeners. In general, for each first and / or second liquid is used approximately 0.1 to 10.0 percent by weight, it is preferred to use about 0.1 to 5.0% betaine and more preferred is approximately 0.15-2.0 percent betaine.

Counterion

The counterion is an anionic organic counterion selected from the group consisting of C 2-5 alkyl carboxylates, aryl carboxylates, C 2-10 alkyl sulfonates, aryl sulfonates, C 2-10 sulfated alkyl alcohols , sulfated aryl alcohols and mixtures thereof. The aryl compounds are derived from benzene or naphthalene and may or may not be substituted. Alkyls may be branched or straight chain and those with two to eight carbon atoms are preferred. Counterions can be added in acidic form and converted into the anionic form in situ , or they can be added anionically. Suitable substituents for alkyls or aryls are C 1-4 alkyl or alkoxy groups, halogens, nitro groups and mixtures thereof. Substituents such as hydroxy or amine groups are suitable for use with some cleaning active substances other than hypochlorite, such as solvents, surfactants and enzymes. If present, a substituent may be in any position in the rings. If benzene is used, positions for (4) and meta (3) are preferred. In some circumstances, the active cleaning substance itself may be within the class of effective thickening counterions. For example, some active carboxylic acid cleaning substances may be present in the acid and conjugate base forms, the latter could serve as a counterion. C2-6 alkyl carboxylates can act in this way. The counterion is added in an amount sufficient to thicken and give rise to a viscoelastic rheology, and preferably between about 0.01 to 10 weight percent. A preferred molar ratio between betaine and counterion depends on the chain length and concentration of betaine, the type of counterion and the ionic strength of the solution, as well as whether the main purpose of the composition is stability or phase viscosity. Using CEDB and sodium xylene sulphonate (SXS), a preferred molar ratio is about 10: 1 to 1: 3, and more preferred is about 2: 1 to 1: 2. A preferred weight ratio between CEDB and SXS is about 15: 1 to 1: 3, and more preferred is 3: 1 to 1: 1.

The viscoelasticity of the thickener gives the cleaning composition advantageously flow properties not usual. The elasticity causes the current to break and come back to the jar at the end of the spill instead of forming ripples thick. In addition, elastic fluids appear more viscous than which indicates its viscosity.

The viscoelastic properties of a fluid are They can measure with instruments such as the Bohlin VOR rheometer. A frequency sweep with a Bohlin rheometer can produce oscillation data that, when applied to a Maxwell model, results in parameters such as relaxation time (Tau) and the static shear module (G0). The times of relaxation of the formulations of the present invention is they are between approximately 1-50 seconds, preferably between about 0.3-45 seconds, more preferably between about 0.3-30 seconds and more preferably between approximately 5-25 seconds The proportion between relaxation time and static shear module (Tau / G0), previously defined by Smith as relative elasticity, must be between approximately 1-300 s / Pascal (Pa,), it prefers between about 5-150 s / Pa and more preferred between about 10-100 s / Pa. Though the thickeners described herein are effective to develop viscoelasticity in a range of ionic forces of the solution, the ionic force influences the Rheology to some extent. Consequently, unless indicated otherwise, the values of relaxation times, of elasticity relative and viscosity used herein they are calculated for a first liquid (containing hypohalite) that It has an ionic strength of approximately 2, 4molal and one second liquid (containing peroxygen) that has an ionic strength of approximately 3.4 molal. Table III shows examples of such liquids as formulas (b) and (e), respectively:

Accessories

A series of classes of compounds are known complementary and are compatible with liquids first and second, and components thereof. One such class is the Active cleaning substances attached, which interact with your target materials provided by either chemical reaction or enzymatic, or through physical interactions, hereafter collectively called reactions. It is indicated that the agent oxidizer or gas generating agent can function as the active cleaning substance, particularly when one is present in stoichiometric excess over the other. Preferably, the oxidant is present in an excess stoichiometric on the gas generating agent; However, additionally an active cleaning substance can be included. Therefore, useful active compounds include acids, bases, oxidants, reducers, solvents, enzymes, compounds bioorganics, surfactants (detergents) and mixtures thereof. Examples of enzymes include lipases, keratins, proteases, amylases and cellulases. Among the useful solvents are include saturated hydrocarbons, ketones, acid esters carboxylic, terpenes, glycol ethers, and the like. The bioorganic compounds such as sodium thioglycolate can be include to help break down hair and other proteins. Be they can include various nonionic, anionic surfactants, cationic or amphoteric, as is known in the art, for their detergent properties Examples include taurates, sarcosinates and phosphate esters. You can also include others non-cleaning active attachments as known in the technique, such as corrosion inhibitors, dyes and fragrances

Although compositions that have a rheology viscose, especially a viscoelastic rheology, provide a benefit when applied to drains that have obstructions porous or partial, the full benefit is obtained when the The composition thickens and has a density greater than that of water. This density can be obtained without the need of a material densifying, however, when necessary to increase the density, a salt such as sodium chloride is preferred, and it can be add to the liquid at levels of 0 to about 25 percent e weight, preferably 12-25 percent by weight. It is preferred that the second liquid, ie the one that includes the gas generating agent, be denser than the first liquid, is say the one that contains the oxidant. In doing so, the agent Gas generator will fill the lower portion of the P type siphon, and the first liquid, which contains the oxidant, will "cover" the second liquid on both sides of the Siphon type P, that is, in the 90 degree elbow and in the vertical pipe. Therefore the generation of gas is mainly produced at the interface of the two liquids and within the lower portions of the Siphon type P, which allows the foam to expand upwards to completely contact the clogged portions of the drain, especially the vertical pipe. The expanding gas passes through the oxidant, it enters the foam and is distributed throughout The pipe. In addition, the foam generation rate is slowed by the rheology of the first and second liquids, so that the foam is durable and a higher percentage of active substances The rheology of the first liquid it contains oxidizer specifically controls the generation of foam from At least two views. First, the viscosity and the elasticity of the first solution act by limiting the second denser solution, especially on the vertical side of the Siphon type P, which provides a slow and continuous foaming reaction. Second, the rheology of the first liquid that remains in the 90 degree bend of the pipe acts by physically plugging the pipe, preventing liquids and / or foam from being diverted a.C. the horizontal outlet of the drain. For the above reasons, What concerns most is that the first liquid has a density specific of about 1.10 or greater and that the second liquid has a specific density higher than the first, more preferably about 1.12 or higher. A proportion preferred between the specific densities of the second and the first Liquid is about 1.01: 1 to 1.5: 1.

Figure 1 shows four generation curves foam / decomposition for four different thickener systems together with hypochlorite / oxygen peroxide / gas generator system of the present invention. Formula A (curve A) uses betaine more preferred is the sodium xylene sulfonate thickener in the hypochlorite and peroxide solutions. The composition used for generate curve A is shown in Table III examples (a) and (e) combined. Formula / curve B uses the most preferred betaine sodium xylene sulfonate in the hypochlorite solution that is shown in Table III, example (b) and the alcohol thickener ethoxylate of Table III (f) in the peroxide solution. The Formula C (curve C) uses the preferred thickening system with the peroxide (Table III (s)), and the amine / soap oxide (Table III (c)) With the hypochlorite. Finally, curve D uses the thickener of amine oxide / soap (Table III (c)) for hypochlorite and thickener of ethoxylated alcohol from Table III (f) in the solution of peroxide. Note that all thickeners used to generate the curves of Figure 1 are within the scope of the present invention

The following table (Table I) illustrates the important rheological characteristics of the components hypochlorite and peroxide for each formula shown in Figure one.

TABLE I

one

In the Figure, foam volume was measured pouring approximately 500 ml of a composition according to the Example 10, Table V, in a graduated cylinder of 2 l. The viscosities were measured on a Brookfield rheometer, model DV-II +, with a spindle number 2 coated with Teflon® at 5 rpm after two minutes. The parameters were measured Tau, G0 and relaxation times in a VOR Bohlin at 25 ° C in the oscillatory mode The foam volume was measured visually at several intervals An initial phase (or phase I) of generating foam begins when the first and second liquids are combined, for example in a drain or on a surface, at zero time (t_ {0}). In general, the initial phase lasts approximately 60 seconds, preferably about 50 seconds, from t_ {0}. A secondary phase (or phase II) begins at the end of the initial phase and extends from approximately 20 to 500 seconds, preferably about 30 to 300 seconds, after  The initial phase ends. After the end of the secondary phase, a tertiary phase (or phase III) lasts another 80 to 3600 seconds, preferably 90 to 1000 seconds.

At the end of the tertiary phase, the foam essentially it has dissipated; therefore, an exact endpoint does not it's crucial. In addition, the duration of the secondary phase and the phase tertiary is less important than the duration of the initial phase, since the initial phase defines the kinetics of the initial generation of the foam, which is important in the effectiveness of the treatment.

At a generation speed greater than approximately 60 ml / second, the foam tends to deflect towards the drain pipe, which results in a time of minimum contact At less than about 20 ml / second there will be a Insufficient foam "moment" to attack the obstruction. The first two phases define the development of the foam: a rapid initial increase (Phase I) and a second slow increase (phase II). The tertiary phase defines a very slow increase to a slow decline It is preferred that phase I occur at around 10-50 ml / s, more preferably at 15-45 ml / s, and more preferably at 25-40 ml / s. Phase II occurs preferably at 0.01-6 ml / s, more preferably at 0.1-5 ml / s, and more preferably at 1-3.5 ml / s. In phase III, the speed of foam development should be approximately 0.001 ml / s at minus 0.2 ml / s.

In Fig. 1 it can be seen that curve A shows the best performance, with a quick initial phase; a second phase slower; or a slow final degradation phase. The other curves: B, C and D, although they show a performance within the scope of the present invention, do not employ the thickener system more preferred with the hypochlorite and peroxide components, for Both do not provide the same curve.

Next, Table II indicates the preferred ranges of viscosity, relative elasticity and time of relaxation for the oxidizing agent and the gas generating agent preferred.

TABLE II

2

The above-mentioned parameters of viscosity, relaxation time and relative elasticity influence the effective performance of the compositions of the present invention and it is more preferred that each of the first and second liquids possess the three desired properties. However, there are a number of variables that include rheology, so it is understood that the rheological properties of the present specification are not necessarily exclusive in order to define a composition within the scope of the present invention, which is preferably defined by the functional characteristics of the foam and the efficiency of cleaning. The compositions fall within the scope of the present invention if they include a liquid that has at least one of the rheological properties, provided that foam generation and cleaning efficiency are achieved. Preferably, a liquid possesses at least one of the properties and the remaining liquid possesses at least two of such rheological properties. More preferably, one of the liquids has at least two, and the other three, properties
rheological

The present invention also relates to a formulation to unclog drains and the use procedure. The formulation includes a first liquid comprising:

a hypohalite: a corrosion inhibitor; a tampon; a pH adjusting agent, and a thickener and a second liquid comprising:

(i)

a peroxide;

(ii)

a pH adjusting agent;

(iii)

a densifying agent;

(iv)

a thickener

and in which the liquids first and second they are kept separate, for example, in separate chambers of a double chamber flask, and then mixed, simultaneously or shortly after its dispensing into the drain. One more procedure preferred to unblock drains involves pouring a liquid first and second, simultaneously from a double chamber flask, in a drain to be cleaned, and leave a period of time for the active foam introduced break down the obstruction.

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A preferred example of cleaning formulation of drains includes a first composition comprising:

(i)

a C 14-18 alkyl betaine or sulfobetaine:

(ii)

a anionic organic counterion;

(iii)

a alkali metal hydroxide;

(iv)

a alkali metal silicate;

(v)

a alkali metal carbonate; Y

(saw)

a alkali metal hypochlorite

and a second composition that understands

(i)

a C 14-18 alkyl betaine or sulfobetaine

(ii)

a anionic organic counterion;

(iii)

hydrogen peroxide;

(iv)

sulfuric acid; Y

(v)

sodium chloride.

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Components (i) and (ii) comprise the viscoelastic thickener and are as described above. He alkali metal hydroxide is preferably hydroxide of potassium or sodium, and is present in an amount between approximately 0.5 and 20 percent. Alkali metal silicate preferred is one that threads the formula M 2 O (SiO) n, where M is an alkali metal and n is between 1 and 4. Preferably, M is sodium and n is 3.2. The alkali metal silicate is present in an amount of about 0 to 5 percent. Carbonate Preferred alkali metal is sodium carbonate, at levels of between about 0 and 5 percent. There are approximately 1 to 15 percent hypochlorite, preferably around 4 to 8.0 percent.

In general the preferred betaine for use with hypochlorite is an alkyl dimethyl betaine compound or sulfobetaine with an alkyl group of 12 to 18 carbon atoms, and more preferably betaine is CEDB. Alkylamide betaines and alkylamino betaines are not preferred in the presence of hypochlorite Also, when there is hypochlorite, the composition is more stable, with no more than about 1.0 percent by weight of betaine, although up to about 10 percent can be used by weight of betaine. Benzene sulfonic acids are preferred substituted, the counterion with xylene acid being more preferred sulfonic

Although hypochlorite / peroxide foam generating system is preferred, other systems can be used to generate foam, provided that the desired characteristics of the foam are achieved. More preferably, such foam characteristics are achieved when one or both solutions are viscoelastic, have a Tau / G0 of 1-300 and a relaxation time of at least about 0.3 s, preferably at least about
5s.

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Formulation Examples

Formulation example one

3

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Experimental part TABLE III

4

(b) =  \ begin {minipage} [t] {150mm} 5.80% sodium hypochlorite, 1.85% of sodium hydroxide, 0.0578% sodium carbonate, 0.1128% of sodium silicate, 0.78% betaine, 0.39% SXS. \ End {minipage} (c) =  \ begin {minipage} [t] {150mm} 5.57% sodium hypochlorite, 2.50% of sodium hydroxide, 1.10% of sodium silicate, 1.00% of C 14 amine, 0.18% C 16 amine oxide, 0.58% soap C10 fatty acid, 0.34% fatty acid soap C_ {12}. \ End {minipage} (e) =  \ begin {minipage} [t] {150mm} 0.50% hydrogen peroxide, 20% of sodium chloride, 0.015% sulfuric acid, 0.374% betaine, 0.262% of SXS. \ End {minipage} (f) =  \ begin {minipage} [t] {150mm} 0.51% hydrogen peroxide, 10% of sodium chloride, 10% ethoxylated alcohol sulfate (salt of sodium). \ end {minipage}

The previous Table III shows the speed of foam generation for phases I and II, and the midpoint for foam degradation rate, for 5 formulations different from hypochlorite / peroxide, where the systems are indicated thickeners Examples 1 and 2 illustrate the performance of the forms more preferred embodiments, in which both components are thicken with the preferred system. Examples 3 and 4 include a binary component thickened with the most preferred thickener, and the another binary component thickened with a less preferred thickener, as indicated in the Table. Example 5 is a binary system thickened with amine oxide and ethoxylated alcohol sulfate, which It is still within the scope of the present invention.

Table IV below shows the chemical stability at various storage temperatures of the bleach and peroxide compositions. The figures indicated are the percentage of active substance remaining. The stability of the active substances is very good, especially for the peroxide composition containing 20% NaCl. The high ionic strength tends to destabilize the peroxides, therefore the stability of the peroxide is surprising and is thought to be due to the thickener system that acts by immobilizing the ions (as well as any residual metal) in the composition. The Bleach Composition in Table IV comprises the following weight percentages of the ingredients: 5.80% sodium hypochlorite, 1.85% sodium hydroxide, 0.0578% sodium carbonate, 0.1128% sodium silicate, 0.78% betaine, 0.39% SXS. The Peroxide composition comprises 0.51% hydrogen peroxide, 20% sodium chloride, 0.015% sulfuric acid, 0.3742% betaine and 0.2616%
SXS

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TABLE IV Percentage of active substances remaining

5

Table V shows the effect of the type of thickener and the rheology on the removal performance of the obstruction. Although thickened formulas can provide benefits on their own, it has been found that the combination of viscoelastic thick solutions of the present invention provide the highest clog removal performance. All tests were carried out on typical domestic sink drains consisting of a 3.8 cm diameter pipe with a vertical section, a U or Siphon type P, a 90º elbow and a horizontal drain pipe. The volume of the foam and the administration of the bleach were measured 5 minutes after pouring. Examples 1 and 2 show that non-thickened formulas do not produce enough foam in the drain pipe. Examples 3 and 4 show the results when at least one formula is viscoelastic. The following examples show the effects of a combination of a simple thickened formula with a thick viscoelastic solution. Examples 5 and 7 use a formula of thickened hydrogen peroxide with an alternative thickener, for example an ethoxylated alcohol sulfate. Examples 6 and 7 illustrate the use of another thickener, for example C14-16 amine oxides, a stable thickening surfactant with bleach commonly known to those skilled in the art. Examples 8-10 illustrate the beneficial performance of the preferred embodiments herein.
invention.

TABLE V Effect of the surfactant on the performance of drain unblocking

6

* foam was generated but immediately turned aside (a) =  \ begin {minipage} [t] {150mm} 5.80% sodium hypochlorite, 1.85% sodium hydroxide, 0.0578% sodium carbonate, 0.1128% silicate sodium, 0.78% betaine, 0.35% SXS. \ End {minipage} (b) =  \ begin {minipage} [t] {150mm} 5.80% sodium hypochlorite, 1.85% sodium hydroxide, 0.0578% sodium carbonate, 0.1128% silicate sodium, 0.78% betaine, 0.39% of SXS. \ End {minipage} (c) =  \ begin {minipage} [t] {150mm} 5.57% sodium hypochlorite, 2.50% sodium hydroxide, 1.10% sodium silicate, 1.00% amine oxide C 14, 0.18% C 16 amine oxide, 0.58% acid soap C10 fatty, 0.34% fatty acid soap C_ {12}. \ End {minipage} (d) =  \ begin {minipage} [t] {150mm} 5.43% sodium hypochlorite, 1.85% sodium hydroxide, 0.0578% sodium carbonate, 0.1128% silicate sodium, 0.77% betaine, 0.35% of SXS. \ End {minipage} (e) =  \ begin {minipage} [t] {150mm} 0.50% hydrogen peroxide, 20% of sodium chloride, 0.015% sulfuric acid, 0.374% betaine, 0.262% of SXS. \ End {minipage} (f) =  \ begin {minipage} [t] {150mm} 0.51% hydrogen peroxide, 10% of sodium chloride, 10% ethoxylated alcohol sulfate (salt of sodium). \ end {minipage} (g) =  \ begin {minipage} [t] {150mm} 0.51% hydrogen peroxide, 20% of sodium chloride, 0.015% sulfuric acid, 0.374% betaine, 0.262% of SXS. \ End {minipage} (h) =  \ begin {minipage} [t] {150mm} 0.42% hydrogen peroxide, 20% of sodium chloride, 0.015% sulfuric acid, 0.4675% betaine, 0.327% of SXS. \ End {minipage} \ dagger =  \ begin {minipage} [t] {150mm} 5.80% sodium hypochlorite, 1.85% sodium hydroxide, 0.0578% sodium carbonate, 0.1128% silicate sodium. \ end {minipage} \ ddagger = 0.50% of hydrogen peroxide, 20% sodium chloride, 0.015% acid sulfuric. # =  \ begin {minipage} [t] {150mm} non-thickened surfactant containing Bleach: 5.47% sodium hypochlorite, 1.82% sodium hydroxide, 0.0569% sodium carbonate, 0.1111% sodium silicate, 0.7681% betaine, 0.9946% of SXS. \ End {minipage} \ textdollar =  \ begin {minipage} [t] {150mm} non-thickened surfactant containing peroxide: 0.48% hydrogen peroxide, 19.7% sodium chloride, 0.0148% sulfuric acid, 0.368% betaine, 0.9239% of SXS. \ End {minipage}

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Other properties of interest of the foam They include the density and stability of the foam. A dense foam  and stable will allow more contact time between active cleaning substances and organic materials of the obstruction. Foam stability is defined as the foam resistance to a force that tends to collapse or move the foam. For the present invention, the stability of the foam is determined by measuring the travel speed of a standard object through a foam column. The object used in this experiment is a black phenolic screw cap that It is found in typical laboratory sample jugs. The The lid has a diameter of 5 cm, a LIP of 1.2 cm and weighs 11 grams. The inverted lid is placed on top of the column of foam and it measures the time it takes to travel completely to through the foam. A travel speed in the foam is Calculate by dividing the height of the foam column by time Total required to travel through. A preferred speed of foam displacement is less than about 10 cm / min; more preferred is less than about 6 cm / min. The ratio between the speed of travel through the foam and the density can also be determined by combinations of thickened gas generating agents and oxidizing agents. A Preferred ratio is about 50: 1 to 1: 1, plus Preferred is about 30: 1 to 10: 1. Table VI shows list these properties of the foam.

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TABLE VI Foam properties

7

(a) =  \ begin {minipage} [t] {150mm} 5.78% sodium hypochlorite, 1.85% sodium hydroxide, 0.0578% sodium carbonate, 0.1128% silicate sodium, 0.7800% betaine, 0.3900% SXS. \ End {minipage} (b) =  \ begin {minipage} [t] {150mm} 0.49% hydrogen peroxide, 20% of sodium chloride, 0.015% sulfuric acid, 0.3742% betaine, 0.2612% of SXS. \ End {minipage} (c) =  \ begin {minipage} [t] {150mm} 0.48% hydrogen peroxide, 10% of sodium chloride, 10% ethoxylated alcohol sulfate (salt of sodium). \ end {minipage} (d) =  \ begin {minipage} [t] {150mm} 5.57% sodium hypochlorite, 2.50% sodium hydroxide, 1.10% sodium silicate, 1.00 amine oxide C 14, 0.18% C 16 amine oxide, 0.58% soap C 10 fatty acid, 0.34% fatty acid soap C_ {12}. \ End {minipage}

Table VII shows the performance of the present invention on hair restrictions in drains. For this test, 4 grams of human hair were mixed with approximately 2 grams of a 10% soap solution and the ball resulting hair was suspended in the drain at the location approximate of the retention crosshead mechanism. Time for that 3,785 liters of water left the sink was recorded as the initial flow In the tests thickened agents of removal of obstructions available in the market according with the instructions on the label. Tests were also performed with non-thickened compositions of oxidizing agent and generator gas, together with compositions of the present invention. Approximately 500 ml of each of the compositions for Unclog drains were poured into the drain. Again, it was measured the time for 3,785 liters of water to leave the sink and recorded as the final flow. After finishing each test, it was washed The remaining hair was dried overnight at 38 ° C and weighed. The The present invention dissolved an average of 71.8% of the hair, while that non-thickened and thickened commercial products dissolved an average of only 20.1% and 52.0% respectively. The non-thickened combination of oxidizing liquids and gas generators it dissolved an average of only 13.8% of the hair. Flow rates endings for drains treated with the commercial product thickened or the present invention are comparable to the flow rates observed in sinks with unobstructed drains. The non-thickened compositions did not result in flow rates significantly improved.

TABLE VII Performance on obstructions of hair

8

(a) = a plunger of liquid drains sold not thickened (b) = a liquid drain unblocker marketed it's heavy (c) =  \ begin {minipage} [t] {150mm} unthickened combination of agents oxidizers and gas generator, prepared according to Example 2 from Table V \ end {minipage} (d) = one formulation of the present invention prepared in accordance with the Example 10 of Table V

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Examples 7-9 which are the formulation of the present invention, show a mean of hair dissolved much larger than any of the other examples. Be think that this improvement is due to an increase in the time of contact provided by the present invention. Can be seen that the present invention also provides an initial flow rate better and the final flows were better than all except the product (b).

A more preferred procedure to unclog drains means pouring a first and a second liquid, as illustrated in the Formulation of Example 1, simultaneously from a dual chamber flask A preferred dual chamber vial comprises one with adjacent chambers of equal capacity and a single hole of dispensing

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TABLE VIII

9

Table VIII illustrates the specific improvement in the drains of slow flow, that is to say in those whose flows are approximately 11.4 liters per minute (l / min), followed by treatment by a formulation of the present invention prepared according to Example 10 of Table V. The analysis protocol required the measurement of the amount of time necessary for 4 liters of cold running water to pass through the sink drain. This was done three times one the medium flow Next, the present invention was applied to drain. After one hour the drain was washed with running water hot. Again, the amount of time was measured three times necessary for 4 liters of cold running water to pass through the drain from the sink and the average flow was determined. He calculated the percentage improvement of the flow for each drain using the average flows obtained before and after the application of the present invention A preferred vial orientation during the discharge results in both liquids leaving the double chamber container so that a generation is produced Optimal foam in the drain pipe.

Claims (19)

1. A cleaning composition that understands: (a) a first aqueous liquid comprising a oxidizer; Y (b) a second aqueous liquid comprising a gas generating agent; characterized in that at least one of the first and second liquids includes a betaine surfactant and an aryl sulfonate surfactant, and in which at least one of the first and second liquids that includes a betaine surfactant and a sulphonate surfactant Aryl is viscoelastic, keeping the first and second liquids separated before forming a mixture during administration to a surface to be treated, whereby the mixture generates a foam sufficient for cleaning efficiency and stability. 2. A composition as claimed in the claim 1, wherein the first and second liquids are thickened, include a betaine surfactant and a surfactant of aryl sulphonate and are viscoelastic. 3. A composition as claimed in the claim 1 or claim 2, wherein the oxidant is selects from alkali metal and alkaline earth metal salts of hypohalite, haloamines, haloimines, haloimides, haloamides and mixtures thereof; and the gas generating agent is selected from organic and inorganic peracids, organic perches and inorganic, peracetic acid, monoperoxysulfate, peroxide hydrogen and mixtures thereof. 4. A composition as claimed in any one of claims 1 to 3, wherein the oxidant is  present in a molar excess over the gas generating agent in a 10: 1 to 1: 1 range. 5. A composition as claimed in any one of claims 1 to 4, wherein a initial foam phase at an initial rate of 10 to 50 ml / s, where said initial phase lasts no more than about 60 seconds. 6. A composition as claimed in the claim 5, wherein a secondary foam phase is generated at a secondary speed of 0.01 to 6 ml / s, where said phase secondary lasts approximately 500 seconds after the end of said initial phase; and a tertiary phase of foam is generated at a tertiary velocity of 0.001 to less than 0.2 ml / s, where said phase tertiary lasts approximately 3600 seconds after the end of said secondary phase. 7. A composition as claimed in any one of claims 1 to 6, wherein the foam is characterized by a density of at least about 0.1 g / ml, a volume of at least 1.0 times the volume of the liquid and a half-life greater than about 30 minutes, where the foam contains an effective amount for cleaning drains of an active substance for cleaning drains. 8. A composition as claimed in any one of claims 1 to 7, wherein at least one of the first and second liquids is characterized by a rheology of a cutting viscosity at 50 to 2500 cP, an elasticity relative to 1 to 300 s / Pa and a relaxation time of at least about 0.1 seconds. 9. A cleaning composition that understands:

(to)

a first aqueous liquid having a viscosity of at least approximately 100 cP, a relative elasticity of at least approximately 1 s / Pa and a relaxation time of at least about 0.3 s, and comprising an oxidant and a surfactant;

(b)

a second aqueous liquid having a viscosity of at least approximately 50 cP, a relative elasticity of at least approximately 1 s / Pa and a relaxation time of at least about 0.1 s, and comprising a gas generating agent and a surfactant;

being the second aqueous liquid denser than the first aqueous liquid and the liquids being aqueous first and second arranged in a dual chamber container so that they remain separate before forming a mixture during its administration to a surface to be treated, with which the mixture generates enough foam for efficiency and stability of the cleaning. 10. A cleaner as claimed in the claim 9, wherein the oxidant further includes an agent of alkaline pH adjustment and the gas generating agent also includes a acid pH adjusting agent. 11. A cleaner as claimed in the claim 9 or claim 10, wherein the oxidant is present in a stoichiometric amount on the generating agent of gas, wherein said excess oxidant acts as a substance activates drain drain. 12. A cleaner as claimed in any of claims 9 to 11, which further includes an active substance drain unblocking. 13. A cleaner as claimed in any of claims 9 to 12, wherein the liquids first and second include a betaine surfactant and a aryl sulfonate surfactant. 14. A cleaner as claimed in any of claims 9 to 13, which further includes an alkali metal hydroxide, an alkali metal silicate, a alkali metal carbonate and an alkali metal chloride. 15. A cleaner as claimed in any of claims 9 to 14, wherein a initial foam phase at an initial flow rate of 10 to 50 ml / s, where said initial phase does not last more than about 60 seconds. 16. A cleaner as claimed in the claim 15, wherein a secondary foam phase is generated  at a secondary flow rate of 0.01 to 6 ml / s, where said phase secondary lasts 20 to 500 seconds after an end of said initial phase; and a tertiary foam phase is generated at a flow rate tertiary from 0.0001 to less than 0.2 ml / s, where said tertiary phase lasts approximately 3600 seconds after an end of that phase high school. 17. A procedure to eliminate the restrictions caused by organic materials in drainage pipes characterized in that it comprises:

(to)

enter a drain a cleaning composition as defined in claim 1 or claim 9;

Y

(b)

allow the foam generated by the cleaning composition remain in contact with the material organic restriction to react with it.

18. A procedure as claimed in the claim 17, wherein an initial foam phase is generated a an initial flow rate of 10 to 50 ml / s, where said initial phase does not last more than about 60 seconds. 19. A procedure as claimed in the claim 18, wherein a phase secondary to a secondary flow rate of 0.01 to 6 ml / s, where said secondary phase lasts 20 to 500 seconds after an end of said initial phase; Y a tertiary foam phase is generated at a tertiary flow of 0.001 at less 0.2 ml / s, where said tertiary phase lasts approximately 3600 seconds after an end of said phase high school.