JPS6079100A - Tablet for disinfecting water closet toilet - 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] field of invention The present invention relates to tablets for disinfecting flush toilets.

TECHNICAL BACKGROUND Various compositions and methods of polyurethane have been proposed for the sterilization of flush toilets. These include various hypochlorite and chloramine compounds, which can be used in a type-type dispenser as described in U.S. Pat. No. 4,618,891 or in U.S. Pat. 3.
618,143 or U.S. Pat. No. 4.208.74'
It can be dispensed and given from a two-compartment dispenser as described in No. 6 specification. Sterilizing compositions can be used as granules, but are more commonly used as tablets.

In order to work effectively in automatic toilet bowl cleaners, disinfectant tablets require a number of properties. The tablet is 30'
It should have a service life of close to D washes, and should have a service life of about D times.
A disinfectant concentration of ~30 ppm%, preferably about 5-20 ppm, should be generated per flush. Tablets must not be unpleasant or emit loramine or other unpleasant odors. The tablet must retain its shape throughout the useful life of the toilet cleaner, and the tablets must retain their shape throughout the life of the toilet cleaner, and the tablets must retain their shape throughout the lifespan of the toilet cleaner, and the various types of tablets in the dispenser that follow the water as it circulates as it fills and empties the toilet bowl. shall not collapse or disassemble in such a way as to obstruct the holes or passageways of the Sterilizing tablets can prevent corrosion of metal parts in the toilet! Tablets must not contain any ingredients or insoluble ingredients that can significantly cause the formation of scale or other insoluble materials. Furthermore, no toxic substances should be introduced into the sewage system, water supply, or the environment.

The most commonly used sterilizing tablet materials are calcium hypochlorite and trichloro, socyanuric acid. Each of these materials has major drawbacks.

Calcium hypochlorite contains insoluble components that can clog the dispenser pores and increase water hardness and scale formation by adding calcium ions to the water.

Trichloroisocyanuric acid is a → acid and can produce an unpleasant loramine odor in certain environments.

It would be an advance in the art if a sterilizing tablet could be created that would generate a suitable concentration of sterilizing agent, have the required lifespan and maintain its perfect shape, yet would not have the disadvantageous properties mentioned above. .

SUMMARY OF THE INVENTION The present invention provides hydrobromic acid selected from the group consisting of from about 20% to about 90% by weight of an alkali metal salt of dichloroisocyanuric acid and at least about 5% by weight of sodium bromide and potassium bromide. To provide a tablet for disinfecting flush toilets containing salt. Preferred alkali metal salts of dichloroin cyanuric acid are the sodium and potassium salts, with the sodium salt being more preferred. Particularly preferred is sodium dichloroinocyanurate dihydrate. 11 tablets
Trichloroisocyanuric acid or trichloroisocyanurate may be included in the tablet, but the amount of available chlorine in the tablet should be less than about 70%, or other measures should be taken to prevent the production of unpleasant amounts of chloramine odor. Must be avoided.
No. The tablet may also contain one or more mold release agents or other tablet manufacturing aids to aid in tablet formation. Tablets may also contain inert fillers. Particularly preferred embodiments are from about 50% to about 75% by weight.
Dichloroin cyanurate (Flam 2 aqueous phase) up to
from about 5% to about 15% by weight potassium bromide, about 1
0% to about 40% sodium chloride, and about 1
% to about 5% of one or more mold release agents. Another particularly preferred implementation is about 2
0% to about 52% by weight of sodium dichloroincyanurate, potassium bromide from about 18% to about 47% by weight, sodium chloride from about 0% to about 60% by weight. , and about 1% to about 5-small♀
% of mold release agent and in which the ratio of sodium dichloroisocyanurate dihydrate to potassium bromide is substantially stoichiometric. The present invention also relates to placing a tablet as described above in contact with all or part of the water for flushing the toilet bowl, particularly when the water is contained in a tank that is part of the toilet. To provide a method for sterilizing a flush toilet by placing it in a place where it is exposed to water.

SUMMARY OF THE INVENTION The present invention provides a particularly good toilet disinfectant by combining a sodium or potassium bromide stain with an alkali metal salt of dichloroincyanuric acid (e.g., sodium dichlorocyanurate or potassium dichloroinyanurate). It is a system that harmonizes the characteristics of the original as a whole. Trichloroisocyanuric acid or trichloroisocyanurate can be used as part of this invention, but the amount of available chlorine in the formulation is about 70% lido;
The potential for generation of unpleasant loramine odors produced by trichloroisocyanuric acid or trichloroisocyanurate should be minimized. Chloramine odor can also be minimized by other methods, such as by adding an alkaline component to maintain the pH of the water to be highly alkaline, preferably at about pH 9 or higher. Traces of chloramines have been associated with cleanliness. entered. This possibility of producing an unpleasant loramine odor is a significant drawback in the use of compositions containing triclowhite isocyanurate p-trichloroisone chlorinurate as the only active ingredient.

However, using the alkaline component of dichlorocyanurate as the only effective component for disinfecting toilet bowls has serious drawbacks. Kohafu et al.'s Hanawa is really Tq-like ((
than trichlorone anurate (f31'/4 ('!
- is strong, so that the tablets do not last long enough to be commercially acceptable.

However, the problems associated with the use of alkali metal dichloroisocyanuric acid salts can be eliminated by adding l-Ijium bromide or, more preferably, potassium bromide to the composition. reactor. the hydro95ide salt is at least about 5% by weight of the composition, preferably at least about 10%;
must be included.

The hydrobromide salt achieves this modification of the properties of the composition by replacing some or all of the chlorine with bromine in the reaction of the hydrobromide salt with an alkali metal salt of dichloroin cyanuric acid. ,do. The properties of +tIW products improve as the proportion of hydrobromide increases, but when the alkali metal fractions of hydrobromide and dichloroincyanuric acid are present in substantially stoichiometric amounts; Optimal properties are observed. Hydrobromide also acts as a filler.
Therefore, it may be present in more than the stoichiometric amount. However, since hydrobromide is more expensive than other fillers,
There is an economic incentive to use the minimum amount of LiA'1 hydrobromide that yields the desired results.

The alkali metal salt of dichloroin cyanuric acid may be either sodium or potassium dichloroin cyanurate, but the sodium salt is preferred. Most preferred is sodium dichloroisocyanurate diaqueous phase.

The alkali metal salt of dichloroin cyanuric acid may be used from about 20% to about 90%, or more preferably from about 50% to about 75% of the weight of the tablet.

The formulation also contains trichloroisocyanurate. Confucian''' to make your eyes smell unpleasant loramine?
(1) The chlorine bomb used in 11 should be lower than F+7D%17J, or other means should be adopted to avoid the generation of loramine (σ). The term ``1 L 44 chlorine'' refers to the publication of available chlorine in a chlorine gas (
Oki: 11%), the amount of available chlorine in the composition is 471%.
It is generally 1 [)i wa C that means - expressed in terms of off [1'L self-rate. As mentioned here, [11th chlorine] also includes available chlorine, which can be replaced by bromine.The bromine atom replaces the chlorine atom at a ratio of 1/11θ. Because it does.

It is also possible to include filler in the formulation +11 (τ ratio = 1.
(ji 4g is an inert substance that can be used to aid tablet processability, adjust ingredient concentration, reduce raw η1h, or for other reasons). If 41
+1j! i: ! The filler may be any filler material, provided that it contains an alkali metal compound of dichloroin cyanuric acid in an amount of 7'J'' and the composition contains at least about 5% 7k% bromide. The filler can be used even in % li.The filler is preferably present from 10% ri+ to about 40%.
Agent ii is sodium chloride.

In addition to the ingredients listed in L, for example, mold release agents, binders, other tabletting aids, corrosion inhibitors, anti-scaling ILΔ (
1, and other components for C-containing agents known to those skilled in the art may also be included in the formulation. Preferred mold release agents are boric acid and monoglyceryl starch. Desirably, one or more Type 1 agents are present from about 1% to about 5% or more.

Tablets are formed in conventional manner.

It is desirable that all ingredients are sufficiently hydrated to avoid hydration after tabletting, which can be detrimental to tablet shape retention.The tablets of the present invention are only sterilized. It can be used alone for cleaning, or as part of a two-tablet system for more thorough cleaning.

The second tablet of the two-tablet system may contain a detergent, a surfactant, a fragrance, a corrosion inhibitor, a scale inhibitor, a dye, and other ingredients. The present invention is preferably used with a two-tablet system.

The present invention focuses on the reaction between hydrobromic acid Lα and dichloroisone anuric acid alkaline desire 1.f4 Lffl.
; occurs in 1 bird, 1 y) - 11 is immersed in Noshichi 1
Isa poetry trofu] 1, manokoshi 1 f 11 ordinary Kin 1 antiquity 2 royo jinupen 4 no- (J: i'
J: It is desirable to use it. Chase Pen 4 No- in the US! jkj “Old No. 3.6.1 8, 1 4 3
No. Ma Puko is not prosecuted II [It is 4.20'
8.74 / 4light&:I] It is desirable for t18 that there is something like %j with 5 self and 1 counter. However, the present invention is based on the concept that the inside of the tank is ``below the rim'' (disclaimer).

Ru.

The following actual h (example is a misfire) is given as an example between installation 1-ro 1
This is not intended to limit the range 1+1+ in any way. The above discussion and circulation, (, τ, in the example all i〒]S and)
The personal rate is based on the city't (1) if there is no designated bamboo.

Practical Examples 1-6 In each of Examples 1-6, 1.75 inches (lo, 8
The culm 1 of Masa) is 9,100 to 9,800 ps in paddy field.
+ of i (6'2; 7040~67.500kPa)
llv were prepared using 66 g of each of the following formulations.

Actual Mlr Example 1: 94% trichloroisone anurate, 5% sodium bromide, 1% boric acid, and 5% monoglyceryl stearate.

Actual sister example 2: 62% trichloroisone anulate, 32%
Potassium dichloroincyanurate, 5% sodium bromide, 1% boric acid, and 0.5% monoglyceryl stearate.

Fruit t1. [1fll 3: 3% trichloroisocyanurate, 66% potassium dichloroisocyanurate,
63% potassium bromide, 1% boric acid, and 0.5% monoglyceryl nutearate.

Fruit 7tllJ 4: 43% sodium dichlorocyanurate diaqueous, 48% sodium chloride, 2% potassium bromide, 1% boric acid, and 0.5% 7)〃゛''Lyceryl stearate 8 ('jll 5: 56% sodium dichloroisocyanurate dihydrate, 37% 1-enriched sodium 5
+ potassium bromide, 1% boric acid, and 0.5% monogelyceryl sudearate Example 6: 64% 4% sodium dichloroisocyanurate dihydrate 2% sodium chloride, 2% potassium bromide, 1
% boric acid, and 0.5% monoglyceryl nutearate all of the above-mentioned silk relatives form a good tablet.
1 piece. Each tablet was placed in a Deine Pen 4 similar to that described in Old US Pat. No. 4,208,747. The dispenser was placed in a water tank and was periodically removed from the water to imitate the action of flushing water in a toilet.

It was determined by the flow measurement method of 71 bactericidal halogens (halogen and bromine). From these data, it was determined that the amount of halogen administered in the standard toilet ((r:::% l-l)
↓ (expressed as pp+nhanmoto) was estimated. This procedure was applied to f' for each example so that the cutting surface of each tablet could be estimated.
I turned the bottle back on. As a result, the available riverbeds for each formulation are shown in Table 1.

Table 1 1 84-2 1.4-5 so+ 2 74.4 2.0-4 RoO+ 3 42.9. , ． 0.8-4 604 26.8
4.2-12 4 5 31.0 2.0-8 60 6 Filter 5.8 8.0-15 7 Both Examples 1 and 2 produced an unpleasant loramine odor. Each tablet maintained its shape throughout the test and did not cause problems clogging the passages within the dinupenner. Examples 4 and 6 each contained only 2% potassium bromide, but gave very short lifetime results, demonstrating the solubility of sodium dichloroisocyanurate dihydrate. Example 5, containing 5% potassium bromide, showed a significant increase in longevity, demonstrating the remarkable effectiveness of the present invention. Examples 6 and 5 fall within the scope of the present invention, and both obtained very good results due to suitable antimicrobial formulations 1-11, good shelf life, good dosage form maintenance, and no unpleasant loramine odor. Ta.

Examples 7-10 In Examples 7-10, tablets 509 of similar diameter to those of Examples 1-6 were manufactured in a similar manner using the following formulations.

Example 7: 56% Sodium Dichloroin Cyanurate 2
Aqueous phase, 67% sodium chloride, 5% potassium bromide, 1
% boric acid, and 1% monoglyceryl stearate Example 8: 61% sodium dichloroisocyanurate dihydrate, 60% sodium chloride, 5% potassium bromide, 1% boric acid, and 1% monoglyceryl stearate rate.

Practical ITh Example 9: 51% sodium dichloroisocyanurate dihydrate, 47% potassium bromide, 1% boric acid, and 1% monoglyceryl stearate.

Example 10 Near 3% Cycloloy Sofa Null 1 Vaginal Sodium 2 Aqueous Phase, 10% Sodium Li, 15% Potassium Bromide, 1% Boric Acid, and 1% Monoglyceryl Stearate.

In Example 9, the amount of potassium bromide required to convert the entire amount of sodium dichloroisocyanurate to potassium dibromoisocyanurate (Is approximately equal to the stoichiometric amount) Samples of the water were placed in a dispenser similar to that used in 1-6 and placed in the tank of a parrot's flush toilet, which was fitted to flush approximately every hour. Collect the
The lifespan of the tablets was determined by analysis in the same manner as in Example 1-6. The results are reported in Table 1.

Table 1 Example Haloken concentration range Tablet life number (p
pm chlorine) (Water wash conversion) 7 2-8 > 3n.

8 24 291 9 2-Ro 44-Ro 1 [12-3363 The tablets of Examples 7-10 each worked well and did not clog the 1 meter path in the dispenser. about 10 per day
Assuming multiple water washes, each tablet is expected to last approximately 60 days or more.

In addition to changing the composition of the tablet, it is also possible to change its size or shape. The above changes also make it possible to finely adjust the performance of the tablet.

Those skilled in the art will appreciate that substantial changes or modifications may be made to the embodiments described above without departing from the spirit or scope of the invention.

Agent Asamura Hajime

Claims (1)

Claims: (1) a bromide selected from the group consisting of from about 20% to about 90% by weight of an alkali metal salt of dichloroisocyanuric acid and at least about 5% by weight of sodium bromide and potassium bromide; A tablet suitable for sterilizing flush toilets, characterized by containing a hydrogen salt. (2) The tablet according to claim 1, further comprising a mold release agent. (3) The tablet according to claim 1, further comprising trichloroisocyanuric acid or trichloroisocyanurate. (4) The tablet according to claim 1, further comprising an inert filler. (5) The tablet according to claim 1, wherein the alkali metal salt of dichloroisocyanuric acid is sodium dichloroisocyanurate dihydrate. (6) The tablet according to claim 1, wherein the hydrobromide salt is potassium bromide. t7) a - Sodium dichloroisocyanurate dihydrate from about 50% to about 75% by weight, b. Potassium bromide from about 5x to about 15% by weight, C1 from about 10 @it% to about A tablet suitable for sterilizing lavatories, characterized by comprising up to 40% by weight of sodium chloride, about 1% by weight to about 5% by weight of a mold release agent. (8) Approx. 20% to about 52% by weight of sodium dichloroysonanurate, 2 aqueous phase, potassium bromide from about 18% to about 47% by weight, from about 0% to about 6% by weight
Sodium mide up to 0% by weight, and from about 1% to about 5% by weight? a, (, y) for sterilizing pilot toilets, comprising a ttHIJ agent up to (, y), and characterized in that the ratio of sodium dichloroisocyanurate diaqueous phase to potassium bromide is substantially stoichiometric. suitable tablets.