JPS59189854A - Deodorant and deodorizing method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a deodorizer, and more specifically, a powder of a synthetic water-absorbing polymer material that absorbs a large amount of water and becomes gel-like when it comes into contact with water at a source of bad odor containing free water. This relates to a deodorant containing as a main ingredient.

Conventional methods for eliminating odors include masking the odor using aromatic substances such as fragrances, neutralizing the odor source with oxidizing agents such as potassium permanganate, lacryl methacrylate, and geranyl crotonate. There are various methods such as addition polymerization of glyoxal and the like to the malodor-producing substance to lower the filling interval, and methods of fixing the malodor-producing substance with sulfates such as iron sulfate and zinc sulfate to lower the filling interval. has been adopted.

However, the above-mentioned methods cannot exhibit a sufficient deodorizing effect, and most deodorants use fragrances to perform both neutralization and masking. Moreover,
The use of the above-mentioned deodorants may generate other bad odors or foreign odors due to chemical reactions, so sufficient care must be taken when using them. Furthermore, when organic acids are used as deodorants, there is often a risk that the area where they are applied may change in quality or become brittle. Therefore, there has been a long-awaited desire for an effective deodorant that does not have the drawbacks mentioned above.

The inventors of the present invention solved these problems and conducted intensive research to obtain a deodorant that does not have the above-mentioned drawbacks and has a remarkable deodorizing effect, and as a result, they completed the deodorant of the present invention. This is what I did.

The deodorant of the present invention has as its main component a synthetic water-absorbing polymeric substance that contains a large amount of water and becomes gel-like when it comes into contact with water.

Examples of the synthetic water-absorbing polymeric substance that is the main ingredient of the deodorant of the present invention include the following.

(a) Polymerizable monomers that are water-soluble or become water-soluble by hydrolysis in polysaccharides such as starch and cellulose, such as
Acrylic acid, methacrylic acid, acrylate, methacrylate, acrylic ester, methacrylic ester, acrylic amide, methacrylic amide, acrylonitrile, methacrylonitrile, maleic acid, sulfonehistyrene, polyvinylpyridine or oligomers thereof A hydrophilic polymer made by graft polymerizing cooligomer and hydrolyzing it as necessary.

(b) Hydrophilic polymers such as polyethylene oxide, polypropylene oxide, polyvinylpyrrolidone, sulfonated polystyrene, polyvinylpyridine, polyacrylic acid model, polyacrylic acid amide, polymethacrylate, polymethacrylic acid amide, etc. are three-dimensionally made using a crosslinking agent. Polymerized.

Examples of the above-mentioned crosslinking agents include (a) di- or tri-acrylic acid esters of polyols such as ethylene glycol, trimethylolpropane, glycerin, polyoxyethylene glycol, polyoxypropylene glycol, or di- or trimethacrylic acid; esters, (b) unsaturated polyesters obtained by reacting the polyols with unsaturated acids such as maleic acid, (c) bisacrylamides such as N,N-methylene-bisacrylamide, and (c) polyepoxides. Esters of di- or tri-acrylic acid or methacrylic acid obtained by reacting acrylic acid or methacrylic acid; Examples include carbamine esters of diacrylic acid or dimethacrylic acid obtained by reaction, (f) allylated starch, allylated cellulose, and (g) dieboxide having epoxy rings at both ends. Optionally, difunctional compounds that can be crosslinked under various reaction conditions such as methylolated acrylamide, methylolated methacrylamide, glyoxal, phthalic acid, adipic acid, ethylene glycol, or calcium oxide, zinc diacetate, etc. Polyvalent metal salts can also be used.

The particle size of these synthetic water-absorbing polymer substances is 3 to 200.
Methushi's is used.

(Production Example of Crosslinked Sodium Polyacrylate) Crosslinked sodium polyacrylate, which is one of the main ingredients of the deodorant of the present invention, can be produced, for example, as follows.

In a reaction vessel equipped with a stirrer, nitrogen inlet tube, and thermometer,
acrylic acid 10g, ion exchange water 3 (1.7N (standard)
21.8 ml of an aqueous sodium hydroxide solution was added, and the pH of the solution was adjusted to 102.

Then polyethylene glycol diacrylate (PE
0DA ) 0.02 g was added and vacuum degassed at room temperature for 5N.
Nitrogen substitution was performed for 10 minutes and for 1 hour. Then, 0.25 ml of a 1% aqueous solution of ammonium persulfate (250 ppm relative to acrylic acid) and 0.25 ml of a 6% aqueous solution of triethanolamine (1500 pI relative to acrylic acid) were added to the reaction vessel, and the mixture was stirred. Polymerization was carried out at 40°C for 4 hours.

After the reaction was completed, the reaction product was washed with a water-methanol mixed solution, dried under reduced pressure at 50° C. for one day and night, and then ground to obtain a dry gel powder.

The mixing weight ratio of the porous powder or powder pulp to the synthetic water-absorbing polymer material is usually preferably in the range of about 95% to 20%. Further, the porous powder and the powder bulb can be used by freely mixing them at the above-mentioned desired mixing ratio. Furthermore, commonly used insecticides, fungicides, preservatives, fragrances, natural pigments, synthetic pigments, etc. can also be blended.

In the deodorant of the present invention, the mixture of the synthetic water-absorbing polymer powder, porous powder, and pulp pulp is used as a deodorizer by spraying it on a source of bad odor.

Although the deodorizing mechanism of the deodorant of the present invention has not yet been elucidated,
It is thought that by using this in powder form, it absorbs the moisture contained in the source of the malodor and forms a barrier film between the source of the malodor and the surrounding atmosphere. As a result, it is thought that the transpiration of the substances that cause the bad odor is suppressed and the odor is eliminated. Therefore, even if porous powder such as acid clay or pulp powder is applied alone or as a mixture, the deodorizing effect is insufficient, and it is only by using a synthetic water-absorbing polymer material in combination that a far superior deodorizing effect can be achieved. They have discovered that the invention is effective and have completed the present invention.

The deodorizer of the present invention can be used by spraying it in general places where odor is generated, whether indoors or outdoors, but it is particularly suitable for use in odor generating sources such as livestock houses, poultry houses, sewage treatment plants, and feed factories. The effect is large.

Furthermore, by spraying it on pet feces, such as those of dogs, cats, birds, etc., it is possible to eliminate the unpleasant odor that occurs when cleaning.

Furthermore, simply spraying it on the feces excreted by a sick person can effectively eliminate the bad odor emitted by the feces.

EXAMPLES Next, the present invention will be explained in more detail with reference to examples, but the present invention is not limited to the following examples in any way.

Next, a deodorizer based on the crosslinked sodium polyacrylate produced as described above was produced.
After leaving it for a minute, sprinkle 5g of the deodorant shown in Table 1 on it, and
After 0 minutes, the deodorizing power was judged by smell by 20 people.

Example 2 Collect 50g of chicken manure into a 5QQ'++l sample pin,
After leaving it for a minute, 5g of the deodorant shown in Table 2 was sprinkled on it, and 30 minutes later, the deodorizing power was judged by olfactory sense by a panel of 20 people. The results were as shown in Table 2.

Example 3 50 g of sludge was collected in a 5001 nl sample bottle, left to stand for 10 minutes, and then 5 g of the deodorant shown in Table 3 was sprinkled thereon. After 30 minutes, the deodorizing power was judged by smell by 20 panelists.

Example 4 Collect 50.9 ml of dog feces into a 500 ml sample bottle, and
After leaving it for a minute, sprinkle 5I of the deodorant shown in Table 4 on it,
After 30 minutes, the deodorizing power was judged by olfactory sense by 20 panelists.

Example 5 50g of human feces was collected in a 5QQml sample bottle, and after being left for 10 minutes, 5g of the deodorant shown in Table 5 was sprinkled on it and 30
Minutes later, the deodorizing power was judged by olfactory sense by a panel of 20 people.

Claims (3)

[Claims] (1) The main ingredient is a synthetic water-absorbing polymer material that contains a large amount of water and becomes gel-like when it comes into contact with water, and this is combined with acid clay,
A deodorant characterized by containing porous powder or powder pulp of zeolite, diatomaceous earth, etc. (2) An extinguisher whose main ingredient is a synthetic water-absorbing polymer material that contains a large amount of water and forms a gel when it comes into contact with water, and which is mixed with porous powder or powder pulp such as acid clay, zeolite, diatomaceous earth, etc. A deodorizing method characterized by spraying an odor agent onto a source of bad odor containing free moisture. (3) The deodorizer or deodorizing method according to claim 1 or 2, wherein the synthetic water-absorbing polymeric substance is a crosslinked polyacrylate.