FI84222B - Hygiene composition - Google Patents

Description

84222

SANITARY MIXTURE - SANITETSKOMPOSITION

The invention relates to a new use of a sanitary composition in which the active metal component is the early metal salt of hydroxymethanoic acid.

Organic material (also called substrate) decomposes under appropriate conditions by microbes either aerobically (requires oxygen) or anaerobically (without oxygen). Aerobic decomposition takes place in the presence of air and is practically a surface process, while anaerobic decomposition takes place without air, e.g. below the liquid surface. The microbial degradation process is intended to recover energy from an organic substrate consisting of energy-rich substances such as carbohydrates, fat, and proteins. In decomposition, this energy is recovered and stored in a suitable form, such as energy-containing ATP (adenosine triphosphate).

The aerobic process is characterized by a high yield of ATP per amount of substrate used, i.e. a high efficiency of the process. The substrate is thus sufficient for a long time and the practical consequence is that the decomposition process remains calm. The end products of decomposition are energy-poor substances, ie carbon dioxide, water and nitrogen.

In contrast, the anaerobic degradation process is characterized by a poor yield of ATP per amount of substrate used, i.e. a low degree of efficiency. The practical consequence of this is that the substrate consumes a lot. The energy that is not stored in the form of ATP is contained in anaerobic decomposition Decomposition products which may include energy-containing gaseous substances such as hydrocarbons (mainly methane), mercaptans, hydrogen sulfide and ammonia. Among the non-gaseous, energy-containing substances, alcohols formed during alcoholic fermentation can be mentioned. In closed systems and controlled conditions, e.g. in treatment plants, the energy contained in gaseous products is used to produce heat or power, which at the same time reduces the amount of waste. In order not to interrupt the process due to the absence of some vital ingredient, for example, urea for nitrogen pensing is added. Under unregulated conditions, such as those in animal stables, urine wells and toilets, gaseous decomposition products are harmful to the environment. Thus, methane poses a risk of explosion or suffocation to personnel or domestic animals by penetrating air in poorly ventilated areas. Mercaptans and, above all, hydrogen sulphide are particularly toxic and can cause chronic injuries, impaired meat taste, etc. on prolonged exposure. Fatalities can occur at very high concentrations. This can easily happen with poor ventilation, as anaerobic decomposition can accelerate strongly and release large amounts of hydrogen sulfide. Ammonia, on the other hand, is partly very toxic and partly corrosive to metal furnishings in zoos, caravans, etc.

It is clear from the above that unregulated decomposition of the organic substrate can present major problems. It is therefore appropriate to take measures to protect humans, animals and the environment. These measures can be directed either at the microorganism itself or at the gaseous products formed. Thus, for example, microorganisms can be controlled by chemical agents so that they die (bactericidal fungicidal effect) or their growth is inhibited (bacteriostatic fungistatic effect). The effect achieved often depends on the concentration of the chemical. When the measures are applied to the gaseous products formed, this can be done by eliminating the gases by ventilation or by binding the gases (except methane) with a suitable preparation.

The present invention relates to a composition which can both inhibit the growth or kill microorganisms and 3 84222 react with the toxic gases formed.

The object of the invention is achieved by using the sanitary mixture according to claim 1.

The hydroxymethanesulfonic acid salt used in the mixture has a strong effect on microbes and can be either bactericidal or bacteriostatic, depending on the concentration. In a system in which some anaerobic decomposition has already begun, the hydroxymethanesulfonic acid salt 1a can react with mercaptans, hydrogen sulfide and ammonia to form non-volatile, odorless substances. This dual effect of odorless and relatively non-toxic hydroxymethanoic acid phosphoric acid is unique according to the invention.

Other features of the present invention will be apparent from the appended claims.

From the Swedish application 1. No. 7107739-0 discloses the use of organic hydroxysulfonic compounds, including hydroxymethanesulfonic acid salts, in metal coating solutions to improve tolerance to metallic impurities and relatively high primary polish concentrations. The publication does not refer to the bactericidal / bacteriostatic effect of hydroxymethane 1 phonic acid salts.

Furthermore, there is no. Based on 1,173,059, it is known to use methylphenic acid salt in the manufacture of non-wrinkled, keratinous fibrous materials such as woolen fabrics. According to the patent publication, the fabric is impregnated with a solution of methylene acid and treated with heat (60-110 ° C) and pressure for about 3-20 minutes.

In Chemical Abstracts, Vol. 30 (1936), abstract no.

3,1737, describes bisulfite and aldehyde addition compounds and mentions ja ^ εΟβίη and 4,84222 HCHO addition compound. The literature reference only indicates that hydroxymethanesulfonic acid salts and their preparation are known per se, but there is no mention of their bactericidal or bacteriostatic effect or their advantageous use in sanitary compositions.

This also applies to what is found in Chemical 7

Abstracts, vol. 40 (1946), abstract no. 5012.

The Merck Index Tenth Edition, 1983, p. 604, 4419 mentions the sodium salt of hydroxymethanesulfonic acid as such and gives its chemical name, formula and uses. It should be noted that the mentioned uses only concern binders for keratin-containing fibers, flotation of lead-zinc ores and protection of color images. No bactericidal or bacteriostatic effect is mentioned or use in sanitary mixtures.

Finally, German application publication no.

2,727,564 Preparation of mixtures of alkali-2-hydroxyalkyl sulfonates and alkylene glycols. The described alkali 2-hydroxyalkyl sulfonates contain 2 carbon atoms and are not consistent with the hydroxymethanesulfonic acid salt of this invention.

As already mentioned, the mixture according to the invention can be in powder form or in the form of an aqueous solution, depending on the intended use. In addition to the main active ingredient, i.e. the hydroxymethanesulfonic acid salt, the mixture may contain one or more additives.

When the mixture is in powder form, as when used in faecal bags, it is preferably formed from the hydroxymethanesulfonic acid salt alone, i.e. no other additives are usually present. When the mixture is in the form of an aqueous solution, it is preferably in the form of a concentrated solution containing about 20 to 40% by weight of the hydroxymethanesulfonic acid salt.

This concentrated solution can be used either undiluted, for example in the storage of medical preparations, or diluted to various desired concentrations, such as from about 1 to 5% by weight, preferably from about 2 to 34222% by weight of the hydroxymethanesulfonic acid salt, when used in toilets or animal stables.

The possible additives mentioned above are preferably included in the mixtures when they are in the form of aqueous solutions. Additives are, above all, substances that reduce surface tension and substances that increase the hydrogen sulphide-binding capacity.

Surfactants may be known surfactants such as nonionic, anionic or cationic surfactants, but it is preferable to use agents which have antibacterial or bactericidal activity, such as quaternary ammonium compounds. Such preferred surface tension reducing agents include benzalkonium chloride and cetylpyridinium chloride, of which cetylpyridinium chloride (CTC) is particularly preferred. When the mixture according to the invention contains a surface tension reducing agent, its content is 0.001 to 1% by weight, preferably about 0.3% by weight.

Additives for hydrogen sulfide bonding include iron salts or zinc salts, of which ferrous sulfate is the preferred iron salt and zinc chloride is the preferred zinc salt.

In addition to the above-mentioned additives, the compositions may also contain other additives known in the art, such as, for example, perfume, which is added in such an amount as to achieve the desired odor.

Various uses of the compositions according to the invention are described below.

As mentioned above, the compositions of the invention can be used to store medical preparations (tissue samples such as body parts) for archiving or educational purposes. Since no decomposition must occur in this use, the hydroxymethanesulfonic acid content of the mixture must be kept high and thus the mixture is in the form of a concentrated aqueous solution containing 6,84222 hydroxymethanesulfonic acid of about 20 to 40.

About 40% by weight of the hydroxymethanesulfonic acid salt forms a practical upper limit, since this corresponds approximately to a saturated solution and at the highest concentrations only the hydroxymethanesulfonic acid salt precipitates in solid form. Apart from the active substance hydroxymethanesulfonic acid, no other additives are required for the storage of medical preparations. The mixtures according to the invention can also be used in faecal bags, the mixture being in solid form, such as a powder. The warm intestinal fluid dissolves the hydroxymethanesulfonic acid salt as the active ingredient so that a solution with a hydroxymethanesulfonic acid salt content of about 5-10% by weight is formed in the stool bag. According to the invention, the powder added to the faecal bag preferably contains only the active hydroxymethanesulfonic acid salt and no other additives are required.

The compositions according to the invention can also be used as sanitary liquids in the toilets of caravans, boats, buses and aircraft. This starts from a concentrated solution (about 20 to 40% by weight of the hydroxymethanesulfonic acid salt), as mentioned above, and this is added to an empty toilet bowl and diluted with water to about 2% by weight with respect to the hydroxymethanesulfonic acid salt so as to obtain a bactericidal effect. Later, when the fermentation vessel is filled, the bactericidal effect weakens and becomes bacteriostatic. When the toilet is finally emptied into the municipal sewer system, the dilution is so great that no permanent effect remains. This is important because most treatment plants have a biological phase that does not tolerate antimicrobials. For use in toilets contains a mixture according to the invention. a surface tension reducing agent for dissolving stool lumps. As a surface tension lowering agent, it is preferable to use cetylpyridinium chloride, which also enhances the antibacterial effect. To enhance the hydrogen sulfide absorbing effect, the mixture preferably also contains a zinc salt such as zinc chloride. In this context, iron salts are less preferred because they may stain toilet furniture.

In addition, the compositions of the invention can be used as gas scavengers in anaerobic degradation associated with animals. Modern hens and stables are equipped with collection channels for the collection of animal faeces, where the accumulated liquid can either circulate, as in the hens, or stand still, as in the pig houses. After a certain time, the contents of the collection channels are emptied into collection containers, the contents of which are later taken as fertilizer to the field. Animals spend their entire lives above their feces in collection channels, where strong anaerobic decomposition occurs and large amounts of toxic hydrogen sulfide and ammonia are generated. If these gases are not sucked out by strong fans, fatal concentrations can form in a couple of hours due to a power failure, for example, and the entire herd can die. As in toilets, according to the invention, a mixture in the form of a concentrated aqueous solution (about 20 to 40% by weight of hydroxymethanesulfonic acid salt) is added to the empty collection channel system, which is diluted with a certain amount of water to give a starting hydroxymethanesulfonic acid salt of about 2% by weight. The mixture further contains a surface tension reducing agent (preferably CPC) and an additive such as an iron salt for sulfur-hydrogen bonding. Later, when urine accumulates in the collection channels and the concentration of the active ingredient decreases, the mixture according to the invention must be added. The intermittent addition of the mixture according to the invention is adapted to the volume of the collection channels and the emptying interval. When the faeces, after being stored in collection tanks for a certain period of time, are applied as fertilizers, the mixture decomposes into harmless sodium sulfate upon rapid contact with the earth, the sun and the air.

The following are some formulations of the 8,84222 mixture of the invention.

1. A mixture for preserving body parts

A 40% by weight solution of hydroxymethanesulfonic acid in water.

2. Mixture for use in faecal bags 100% by weight of sodium salt of hydroxymethanesulphonic acid (as a powder) 3. Mixture for use in toilets and stables

40% by weight of the sodium salt of hydroxymethanesulfonic acid 0.3% by weight of CPC

5% by weight of zinc chloride / ferrous sulphate 0.1% by weight of perfume water up to 100% by weight.

The invention has been described above with reference to specific uses and mixtures, but it is clear that various modifications can be made within the scope of the invention, which fall within the scope defined in the appended claims.

Claims (10)

9 84222 1. Use of a sanitary mixture in which hydroxymethanetic acid is used as the main active ingredient, e.g. Use according to Claim 1, characterized in that the main active ingredient of the mixture contains the sodium salt of hydroxymethanesulfonic acid. Use according to Claim 1 or 2, characterized in that the mixture is in aqueous form and that the content of the main active ingredient is from 20 to 40% by weight. Use according to any one of the preceding claims, characterized in that the mixture contains a surface tension reducing agent and / or an iron or zinc salt as an additive. Use according to Claim 4, characterized in that the mixture contains 0.001 to 1% by weight of a surface tension-reducing agent. Use according to Claim 5, characterized in that the surface tension-reducing agent is cetylpyridinium chloride. Use according to Claim 4, characterized in that the mixture contains 1 to 10% by weight of iron or zinc salt. Use according to Claim 7, characterized in that the iron salt is ferrous sulphate. Use according to Claim 7, characterized in that the zinc salt is zinc chloride. 10 84222