NO850793L - COMBINED CLEANING AND WHITE AGENTS - Google Patents

Description

The hitherto known toilet inserts (blue flushers) for toilet hygiene are essentially based on surfactants, anti-bacterial agents, perfume, dyes and auxiliary

substances. Their function essentially consists in turning the entire amount of water in the flushing tank blue. When flushing, the entire amount of water that has been treated in this way is set free. This is a decisive disadvantage of the traditional blue washers. Due to the release of the active substances into the entire water content, there are then very diluted solutions, and the majority of these are released during the flushing process unused into the sewer. Therefore, the effectiveness of such blue-washers remains essentially limited to coloring the water.

Another type of toilet additive is based on the bleaching effect of chlorine-releasing substances. Due to their splitting action on perfume oils, dyes and other components, such substances (e.g. trichloroisocyanuric acid, calcium hypochlorite, lithium hypochlorite, etc.) are used in suitable forms,

but without any kind of addition for color and smell. Also with these toilet additives, the active substances are released to the entire amount of water that is at hand in the flush tank, so that here too the majority is lost unused during the flush. In addition, these bleaches mean a constant risk of corrosion in flushing tanks with metal materials.

For these reasons, dosing devices were consequently developed which ensure dosing of the active substances only in the last liters of the flush water, so that the highest possible active substance concentration is reached in the flush water that remains in the toilet. In addition, two separate chambers have been provided in these newly developed systems, to keep the active substances including surfactants, dyes, perfumes and auxiliaries on the one hand separated from the bleaching agents with chlorine or hypochlorite-containing active substances on the other hand (see e.g. European publications 0004 990

and 0013 043). Such combinations form an optimal connection between the aesthetic objective (colour and smell) and the effective cleaning (hypochlorite bleach).

All these active ingredient additives for toilet flush tanks

which is known from the state of the art and must be used separately or combined, is nevertheless unsatisfactory. As their active ingredient principle is, after all, based on chlorine-containing ones

bleach or disinfectants, they are burdened with the disadvantage for the consumer that they are not compatible with the acid WC cleaners that are very common in Europe and especially in Germany.

If such WC cleaners are simultaneously used with hypochlorite-releasing flushing water additives, chlorine gas is produced.

The quantities thereby released are admittedly smaller than wood

the incorrect simultaneous use of hypochlorite-containing WC cleaners and acidic WC cleaners. Even so, it is desirable, not least from the point of view that one must not in any way make the consumer uncertain, to rule out such dangers in the household which are due to ignorance.

It is therefore the task of the present invention to provide surfactant bodies which on the one hand contain perfume/dye and on the other hand bleaching agents, which are compatible with sureWC cleaning agents, whereby one must also

take into account that common salt is often used as a filler in acidic, granular WC cleaners.

According to the invention, this task is solved according to the teachings given in the accompanying patent claims, in that the bleaching agent principle in a combined cleaning/bleaching agent for the flushing water from toilet machines (consisting of separate active substance blocks) consists of a special oxygen-containing bleaching agent, in particular a peroxy bleach. To the best of our knowledge, in the area that includes flushing water additives for toilet hygiene, no active ingredient system has been known so far that is free from the initially described disadvantages of the state of the art and at the same time exhibits such an effective bleaching or cleaning effect under the given conditions (i.e. in called water).

The solution to this task has not simply passed

in renouncing the use of hypochlorite-releasing substances and instead using other suitable bleaching agents, but it has been found necessary to choose such bleaching agents as

on the one hand, the sodium chloride that is often contained in acidic WC cleaners does not oxidize, and on the other hand, in combination with the other components, it strives for an optimum of efficiency and at the same time compatibility. Furthermore, the selection of bleaching agents that are suitable for solving the task had to take place so that their effect is ensured under the conditions determined by practice, i.e. in cold water.

The combined cleaning/bleaching agent according to the invention consists, as stated in the accompanying claim 1, of the combination of an active ingredient block or an active ingredient body for color and smell (A) and an active ingredient block resp. an active ingredient body with bleach (B).

Preferably, the active substance body (A) contains (with perfume and colour):

Within the area specified above, the following area is preferred:

Preferably, the active substance body (B) (with oxygen, especially peroxy bleach) according to the invention contains:

Within the area specified above, the following area is preferred:

As oxygen-containing bleaching agents which can be used in accordance with the invention, all bleaching agents acting on oxygen of the elements B, C, S and N come into question. Examples of such are the perborates, persulphates, peroxydisulphates, caroates and nitrates in the form of their alkali or ammonium salts, whereby when using perborates it is mandatory to simultaneously use bleach activators, especially based on N- and O-acyl compounds such as tetraacetylethylenediamine (TAED), tetraacetylglycoluril (TAGU), pentapropionylglucose (PPG) or pentaacetylglucose (PAG). When using perborate, the amount of bleach activator present (in active substance block A) generally amounts to 1-10% by weight, in particular 5-10% by weight. With the other mentioned oxygen-containing bleaches (apart from the perborates), the use of bleach activators is not necessary and only occurs as an eventual feature.

In more detail, among the various oxygen-containing bleaching agents the following can be mentioned above all: sodium perborate; potassium peroxodisulphate and further caroate.

The other active substances mentioned for the active substance blocks A and B refer to the substances that are usually used in this area. The following examples can be given:

1. As neutral salts (anhydrous)

Sodium or potassium sulfate;

Sodium or potassium carbonate;

Sodium bicarbonate;

also sodium chloride.

2. As non-ionic surfactants or poly waxes

Solid, fusible fatty alcohol-EO adducts (EO = ethylene oxide) of fatty alcohols from the range C12-C18 with 10-80 EO, in particular a fatty alcohol-EO adduct with 25 resp. 50 EO;

Fatty acid alkanolamides from the C12-Clg range as mono- or diethanolamides resp. ethylene oxide adducts thereof, especially fatty acid monoethanolamide;

Alkylphenol polyglycol ethers from the Cg-C-^ range with 5-20 EO, especially nonylphenol polyglycol ethers with 9 EO;

Polyethylene glycols or polypropylene glycols with a molecular weight of 1000-80,000, especially polyethylene glycol with a molecular weight of 12,000;

Amine oxides of the type C^2~C^g-fatty amine dimethylamine oxide;

Fatty amine ethoxylates from the C-^2-C-^g range with 1 x resp. 2x1 to 50 EO.

3. As anionic surfactants

The usual benzene sulphonates, alkyl sulphates, paraffin or olefin sulfonates with chain lengths ^^"^q ■"■ form their alkali salts; moreover, the use of cumol or toluene sulfonate can be highlighted; preferred are sodium alkylbenzene sulfonate and sodium lauryl sulfate.

4. As complexing agents or dispersants

Condensed phosphates (tripoly or pyrophosphates), e.g. potassium pyrophosphate and sodium tripolyphosphate; sodium salts of ethylenediaminetetraacetic acid (EDTA), of nitriletriacetic acid (NTA), of diethylenetriaminepentaacetic acid (DTPA), of N-hydroxyethylenediaminetriacetic acid (HEDTA); phosphonates (sodium salts); polycarboxylic acids, e.g. "Tamol" PA; copolymers of maleic acid with methyl vinyl ether or other vinyl compounds; polyacrylic acids; further all other compounds which can act as chelate complex formers or as dispersants against water hardness formers as well as heavy metals occurring in water, e.g. Fe, Mn, Cu etc.

5. As hydrogen binding agents

Halogen binding agents are only used in the case that

as an oxygen-containing bleaching agent according to the invention, a particularly strong oxidizing agent is used whose redox potential e.g. is capable of oxidizing Cl to Cl, as is the case with caroate; in such a case, halogen binding agents are used, e.g. melamine or melamine derivatives. The amount thereof then amounts to 12-55% by weight, in particular 12-20% by weight.

^ * As perfumes

powerful perfume oils are used which, even in extreme dilution, still produce a clearly noticeable scent.

This is about the usual perfume oils that are used in the area. 7. As dyes in principle, all water-soluble triphenylmethane or triacrylmethane dyes are suitable which are oxidation-resistant in these systems, as they are usually used in this field. However, other suitable dyes can also be used.

In addition to the substances mentioned above with numbers 1 to 7

and the oxygen-containing bleaching agents that can be used according to the invention (possibly in combination with bleaching activators),

further, common additives can also be incorporated into the active ingredient blocks A or B. Examples of these are native or synthetic fatty acids or mixtures thereof; disinfectants or preservatives; as well as solubilizers (e.g. toluene or cumene sulphonate).

The individual substance mixtures for the active ingredient block for

color and odor (A) and the active ingredient block with bleach (B) in the combined cleaning/bleaching agent according to the invention can be prepared and processed in the usual way. The desired recipes can be produced with any commercially available kneading and filleting system. Preferably, the individual raw materials are mixed, called and crushed in a kneader and then homogenized by pelleting.

The combined cleaning/bleaching agent proposed according to the invention has, compared to the products from the state of the art, the decisive advantage that its active ingredient solution (which remains in the toilet) does not cause any chlorine formation when acidic WC cleaning agents are introduced and still provides effective cleaning respectively bleach effect. In this way, risks due to chlorine are avoided with undiminished performance.

The duration of use for the active substance blocks resp. the active substance stones according to the invention usually comprise several

(approx. 4-6) weeks and is preferably controlled using the immersion depth. In practical use, an immersion depth of approx. 3-20 mm proved beneficial. It is particularly advantageous to use the active substance stones according to the invention with an immersion depth of 5-10 mm.

The following examples illustrate the invention without limiting its application. The specified prescriptions will in the individual case depend on the conditions that exist in practice.

In the following examples, the amounts in each case are given in % by weight. For the active substance block (A) (for color and smell) the abbreviation "Aes" is used and for the active substance block (B) (with bleach) the abbreviation "Ox" is used.

According to the invention, any of the hereinafter-mentioned active ingredient stones "Aes" can be combined with any of the hereinafter-mentioned active ingredient stones "Ox", as long as the above-explained peculiarities are taken into account (when it comes to the use of perborate, the use of a bleach activator ; in the case of the use of e.g. caroate, the use of a halogen binding agent). Very particularly preferred combinations according to the invention among the following active ingredient stones are "Aesl" together with "Oxl"; as well as "Aes4" together with "Oxl". Furthermore, the combination "Aes7" with "0x4" is particularly advantageous. Finally, the combination of "Aes8" together with "0x3" should also be mentioned.

Claims (6)

1. Combined cleaning/bleaching agent for toilet machines, consisting of the combination of an active substance block for color and odor and an active substance block with bleach, characterized in that the bleaching agent in the bleach/active substance block is an oxygen-containing bleach, in particular a peroxy bleach, and that combined cleaning/bleaching agents are compatible with acidic WC cleaners. 2. Combined cleaning/bleaching agent as specified in claim 1, characterized in that the active substance block for color and odor contains anionic surfactants, complexing agents or dispersants, perfume; as well as possibly neutral salts, non-ionic surfactants and/or polywaxes, dyes and bleach activators, and that the active substance block with bleach contains complexing agents or dispersants and oxygen-containing bleaches; as well as possibly neutral salts, non-ionic surfactants and/or polywaxes, anionic surfactants and halogen binding agents. 3. Cleaning/bleaching agent as specified in claim 1, characterized in that the active ingredient block for color and odor contains the following components, expressed in weight%: 0-50% neutral salts 0-40% non-ionic surfactants and/or polywaxes 20-50% anionic surfactants 2-20% complex formers or dispersants 0-9% dye 5-20% perfume possibly 1-10% bleach activators. 4. Cleaning/bleaching agent as specified in claim 1, characterized in that the active ingredient block with bleaching agent contains the following components, expressed in weight%: 0-30% neutral salts 0-40% non-ionic surfactants and/or polywaxes 0-50% anionic surfactants 1- 10% complex formers or dispersants 10-50% oxygen-containing bleaches possibly 12-55% halogen binding agents. 5. Combined agent as stated in any of the preceding claims, characterized in that the oxygen-containing bleaching agent in the bleaching agent/active ingredient block is a perborate, persulphate, peroxodisulphate, caroate or nitrate in the form of an alkali or ammonium salt, with the precaution that in the case of perborate, the associated active ingredient block for color and odor always contains a bleach activator. 6. Method for treating flush water from automatic toilet machines, characterized by using a combined cleaning/bleaching agent as specified in any of the preceding claims.