JPH0249745B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention utilizes the effect of a complex salt type polymer electrolyte on sources of bad odors consisting of excreta from living organisms and decayed matter of the living organisms themselves. This invention relates to a deodorizing agent that can be used to achieve a deodorizing effect.

``Prior Art'' Deodorizers can be used not only in toilets, pig farms, poultry farms, livestock sheds, and garbage cans at fresh food markets, but also in kitchens, refrigerators, pet utensils, It is widely used to seal out bad odors and foreign odors that occur in shoes and socks related to human body products, as well as in bathrooms and inside automobiles.

Conventionally known deodorants of this type include those that utilize the interfacial adsorption power of activated carbon, which is an inorganic substance, and in recent years, deodorants that utilize the redox reaction between iron ions and sugar have been reported. ing.

On the other hand, organic materials include those that use polyacrylamide (Japanese Patent Publication No. 61-7828), sodium acrylate/acrylamide copolymer (Japanese Patent Publication No. 61-7829), and even sodium acrylate (monomer). Inventions such as those using the same method (Japanese Patent Publication No. 60-13702) have also been proposed.

``Problems to be solved by the invention'' Now, when we chemically investigate the source of bad odors and off-odors,
It is roughly classified into sulfur-containing compounds and nitrogen-containing compounds, and of these, acidic sulfur dioxide and basic ammonia are overwhelmingly responsible.

However, various deodorants according to the prior art are either not effective at all in suppressing the above-mentioned bad odors and foreign odors, or are only effective for a very short period of time, and are only effective against either acidic or basic odors. It was ineffective and had not made a satisfactory contribution as a deodorant to make human life more comfortable.

The present invention is a deodorizing agent devised to eliminate the above-mentioned conventional drawbacks and inconveniences, and is a deodorizing agent that can be used to eliminate malodors and foreign odors for a long period of time, regardless of whether they are acidic or basic. The purpose is to make the odor effect last.

"Means for Solving the Problems" and "Actions" The deodorant of the present invention was obtained as a result of research on polymer reactions, and is based on nonionic monomers having active hydrogen-containing groups. A complex salt type polymer electrolyte with a high degree of polymerization that simultaneously contains a segment derived from a monomer that connects potassium carboxylate, a segment derived from a monomer that connects thorium carboxylate, and a segment derived from a monomer that connects thorium carboxylate is dissolved in an aqueous medium. When this deodorant is left standing, sprayed, or injected into a place emitting a bad odor, the odor disappears immediately, and the deodorizing effect lasts for a long time regardless of whether it is acidic or basic. .

That is, the present invention provides a composite salt type polymer electrolyte represented by the following general formula for an aqueous medium. (However, X ₁ , X ₂ , X ₃ and X ₄ are hydrogen or methyl groups, Y ₁ , Y ₂ , Y ₃ and Y ₄ are hydrogen, hydroxymethyl group or hydroxyethyl group, and 0.0099≦a ≦0.4999, 0.0001≦b≦0.25,
Moreover, 0.01≦a+b≦0.5, and 0≦c≦0.99,
0≦d≦0.99, and 0.5≦c+d≦0.99, and a+b+c+d=1, and 10000≦n≦
300,000) as an active ingredient, and the difference in ionization tendency of the above-mentioned specified polymer electrolytes and the unique dissolution form including the moderating effect of ion repulsion force eliminates bad odors and foreign odors. The mechanism of action is to take in acidic or basic substances that emit , supplement them, and then undergo a polymer reaction to transform them into odorless substances.

Here, in relation to a given polymer electrolyte, if b in the general formula is less than 0.0001 and greater than 0.25, the difference in ionization tendency cannot be fully exhibited,
In addition, if a+b is less than 0.01, bad odor,
The effectiveness of reacting with off-odor components is weak, and in either case, the deodorizing effect and its sustainability are significantly reduced.

On the other hand, if c+d is less than 0.5, the power to alleviate ion repulsion within the same chain will be weak, making it unsuitable for supplementing malodor and off-odor components.

Furthermore, if n is less than 10,000 or greater than 300,000, it is not preferable because it will not be able to exhibit an appropriate dissolved form in an aqueous medium, and therefore the ability to take in malodorous and off-odor components will be significantly lacking.

"Adjustment" The deodorant of the present invention contains acrylamide, N-hydroxymethylacrylamide, N.N-di(hydroxymethyl)acrylamide, N-hydroxyethylacrylamide, N.N-di(hydroxyethyl)acrylamide, methacrylamide, N
-Hydroxymethylmethacrylamide, N・N-
Di(hydroxymethyl)methacrylamide, N-
A homopolymer or copolymer of hydroxyethyl methacrylamide, N.N-di(hydroxyethyl) methacrylamide is brought into contact with potassium hydroxide and sodium hydroxide in water to cause partial hydrolysis (Production method 1), or Obtained by copolymerizing one or two of the monomers with one of potassium acrylate, potassium methacrylate, and one of sodium acrylate and sodium methacrylate in water (Production method 2). An aqueous solution of a given polymer electrolyte is adjusted to an appropriate concentration before use.

Furthermore, hydrophilic azeotropic solvents such as methyl alcohol, ethyl alcohol, N-propyl alcohol, isopropyl alcohol, acetone, and dioxane may coexist, lubricants such as glycol ether and glycerin, and thickeners such as cellulose and polysaccharides. Agents, gelling agents, etc. may also be mixed.

Incidentally, if desired, it is not a problem to add a bactericide, a preservative, etc.

"Example" Hereinafter, the deodorant of the present invention and the results of a deodorizing test will be shown in Examples.

Example 1 Polymer electrolyte with the following structure obtained by Production Method 1
Create a 0.1% aqueous solution (solution viscosity at 20℃;
750cp, PH8.6), and its 200-fold dilution was used as a deodorant.

Example 2 Polymer electrolyte with the following structure obtained by Production Method 1
Create a 0.08% aqueous solution (solution viscosity at 20℃;
1000cp, PH8.5), and its 200-fold dilution was used as a deodorant.

Example 3 Polymer electrolyte with the following structure obtained by Production Method 1
0.25% (water: ethyl alcohol = 90wt%; 10wt
%) solution was prepared (solution viscosity at 20℃;
850cp, PH9.8), and its 500-fold dilution was used as a deodorant.

Example 4 Polymer electrolyte with the following structure obtained by Production Method 1
Create a 0.05% (water: dioxane = 95wt%: 5wt%) solution (solution viscosity at 20℃: 900cp, PH
9.6), and its 100-fold dilution was used as a deodorant.

Example 5 Polymer electrolyte with the following structure obtained by Production Method 1
Create a 0.3% (water: acetone = 90wt%: 10wt%) solution (solution viscosity at 20°C: 580cp, PH6.1),
A 500-fold diluted solution was used as a deodorant.

Example 6 Polymer electrolyte with the following structure obtained by Production Method 1
Create a 0.08% aqueous solution (solution viscosity at 20℃;
1150cp, PH6.0), and its 150-fold dilution was used as a deodorant.

Example 7 Polymer electrolyte with the following structure obtained by Production Method 1
Create a 0.1% (water: glycerin = 97wt%: 3wt%) solution (solution viscosity at 20℃: 800cp, PH
8.5), and a 200-fold diluted solution was used as a deodorant.

Example 8 Polymer electrolyte with the following structure obtained by Production Method 1
Create a 0.07% aqueous solution (solution viscosity at 20℃;
1150cp, PH9.5), and its 150-fold dilution was used as a deodorant.

Example 9 Polymer electrolyte with the following structure obtained by Production Method 1
A 0.1% (water: monomethoxypropylene glycol = 88wt%: 12wt%) solution was prepared (solution viscosity at 20°C: 600cp, PH9.6), and a 200-fold dilution thereof was used as a deodorant.

Example 10 Polymer electrolyte with the following structure obtained by Production Method 1
Create a 0.2% aqueous solution (solution viscosity at 20℃;
1000cp, PH6.2), and its 350-fold dilution was used as a deodorant.

Example 11 Polymer electrolyte with the following structure obtained by production method 2
Create a 0.1% aqueous solution (solution viscosity at 20℃;
1030cp, PH8.5), and its 200-fold dilution was used as a deodorant.

Example 12 Polymer electrolyte with the following structure obtained by production method 2
0.09% (water: isopropyl alcohol = 93wt%:
7wt%) solution (solution viscosity at 20℃;
1080cp, PH6.0), and its 200-fold dilution was used as a deodorant.

Example 13 Polymer electrolyte with the following structure obtained by production method 2
Create a 0.2% (water: glycerin = 95wt%: 5wt%) solution (solution viscosity at 20℃: 740cp, PH
9.3), and a 400-fold diluted solution was used as a deodorant.

Example 14 Polymer electrolyte with the following structure obtained by production method 2
Create a 0.1% aqueous solution (solution viscosity at 20℃;
800cp, PH8.5), and its 200-fold dilution was used as a deodorant.

Example 15 Polymer electrolyte with the following structure obtained by production method 2
0.1% (water: ethyl alcohol = 93wt%; 7wt%)
Create a solution (solution viscosity at 20℃; 570cp,
PH8.8), and its 200-fold dilution was used as a deodorant.

Example 16 For 100 parts of the liquid deodorant produced in Example 1,
Natural water-soluble polymer carrageenan AFT-70-1
(However, 2.5 parts of Takaragen Co., Ltd. product) was added and mixed uniformly to form a gel deodorant.

Example 17 For 100 parts of the liquid deodorant produced in Example 2,
Carrageenan AFT-70-1 used in Example 16
2 parts were added and mixed uniformly to obtain a gel deodorant.

Example 18 For 100 parts of the liquid deodorant produced in Example 11,
Carrageenan AFT-70-1 used in Example 16
3 parts were added and mixed uniformly to obtain a gel deodorant.

Example 19 200ml of the deodorant produced in Examples 1 to 15 was placed in a 500ml Erlenmeyer flask with an opening/closing cap attached to the top.
After measuring out 1 ml and 2 x 2 x 2 cm ³ of the gel deodorant produced in Examples 16 to 18, open the container and pour in the separately prepared sulfur dioxide.
Air 2 containing 200 ppm was kept in contact at a flow rate of 1/min, and the decay rate of sulfur dioxide was measured at each elapsed time using the Kitagawa detector tube method.

Furthermore, while leaving the deodorant sample used for the measurement as it was, we added 200ppm of sulfur dioxide.
The durability of the deodorizing effect was examined by connecting air containing air and conducting repeated tests.

In addition, the following three types of aqueous solutions were selected as comparative samples and subjected to similar tests. The results are shown in Figure 1.

Comparison sample...sodium acrylate 10ppm
Aqueous solution containing.

Comparative sample: an aqueous solution containing 10 ppm of polyacrylamide with an average degree of polymerization of 200,000.

Comparative sample: an aqueous solution containing 10 ppm of a copolymer consisting of 25% sodium acrylate segments and 75% acrylamide segments.

Example 20 By the same method as in Example 19, air 2 containing 200 ppm of ammonia was kept in contact with a predetermined amount of the deodorant of the present invention produced in Examples 1 to 18,
The decay rate of ammonia was measured for each elapsed time.

In addition, the comparative sample used in Example 19 was also selected and subjected to the same test. The results are shown in Figure 2.

From the above, it was confirmed that the deodorant of the present invention maintains strong and long-lasting performance and is effective regardless of the type of odor source.

[Brief explanation of the drawing]

FIG. 1 is a table showing the attenuation rate of sulfur dioxide (acidic odor source) content due to contact with the deodorant of the present invention, which was found as a result of measurements in Example 19. Second
The figure is a table showing the attenuation rate of ammonia (basic odor source) content due to contact with the deodorant of the present invention, which was found as a result of measurements in Example 20.

Claims (1)

[Claims] 1. A complex salt type polymer electrolyte represented by the general formula in an aqueous medium (However, X ₁ , X ₂ , X ₃ and X ₄ are hydrogen or methyl groups, Y ₁ , Y ₂ , Y ₃ and Y ₄ are hydrogen, hydroxymethyl group or hydroxyethyl group, and 0.0099≦a ≦0.4999, 0.0001≦b≦0.25,
Furthermore, 0.01≦a+b≦0.5, and 0≦c≦0.99,
0≦d≦0.99, 0.5≦c+d≦0.99, and a+b+c+d=1, and 10000≦n≦
300,000) as an active ingredient. 2. The polymer electrolyte represented by the general formula contains 20% potassium acrylate segments obtained by hydrolyzing polyacrylamide with an average degree of polymerization of 200000,
The deodorant according to claim 1, which is a copolymer consisting of 5% sodium acrylate segments and 75% acrylamide segments. 3 The polymer electrolyte represented by the general formula is 10% potassium acrylate segment obtained by hydrolyzing polyacrylamide with an average degree of polymerization of 300000,
The deodorant according to claim 1, which is a copolymer consisting of 10% sodium acrylate segments and 80% acrylamide segments.