WO2010095453A1

WO2010095453A1 - Water sealant

Info

Publication number: WO2010095453A1
Application number: PCT/JP2010/001082
Authority: WO
Inventors: 上野晴道
Original assignee: 株式会社トップフィールド
Priority date: 2009-02-20
Filing date: 2010-02-19
Publication date: 2010-08-26
Also published as: JP2012097124A

Abstract

The objective is to provide is a water sealant that can prevent the evaporation of sealing water, as well as provide a water sealant that is easy to use. It is possible to effectively prevent circumstances under which sealing water will evaporate by using a water sealant containing an oil constituent and a surfactant. By having a powdered, granular, tablet, sheet, seamless capsule, or capsule form, the water sealant requires no mixing step immediately prior to use, can increase the working efficiency of the user and is easily used. Since the form of the water sealant is lighter than that of a liquid water sealant, the labor involved in the user hauling the sealant to the worksite can be reduced.

Description

Sealant

The present invention relates to a sealant. More specifically, the present invention relates to a sealant that can effectively prevent a situation where the seal water evaporates, and a drainage pipe management method using such a sealant.

For example, drainage traps are provided in the drainage piping route in bathroom washrooms, washstands, and toilets to prevent odors and pests from entering the sewage side. Some drainage traps have a sealed water chamber in which drainage is stored at a certain depth and an opening is formed at the upper end, and a drainage port for discharging wastewater overflowing from the opening of the sealed water chamber. An inner cylinder that opens to the washing area is inserted in the sealed chamber, and wastewater from the washing area flows into the sealed chamber from the opening at the lower end of the inner cylinder and is discharged from the drain. Further, a drain branch pipe that opens to the bathtub is connected to the side of the sealed chamber. Drainage from the bathtub flows from the drain branch into the sealed chamber and is discharged from the drain. Odors and pests from the sewage side are prevented from entering the room by the drainage (hereinafter referred to as sealed water) accumulated in the sealed water chamber, so that they do not enter the room (for example, see Patent Document 1).

For example, an apartment may be a vacant room for a long time. In some cases, the school is closed for a long period, such as summer vacation. In such a case, the sealed water evaporates. Then, there is a problem that bad odors and pests enter indoors.

JP 2001-182118 A

An object of the present invention is to provide a sealant capable of preventing evaporation of the seal water. An object of this invention is to provide the sealing agent which can be used easily.

Conventionally, it was only intended to use water as the sealing water. This invention dares to use the sealant containing an oil component and surfactant, and can prevent effectively the situation that seal water evaporates. When the sealant was liquid, it was necessary to mix the sealant solution immediately before using the sealant, which required time. The sealant of the present invention has a powder, granule, tablet, sheet, seamless capsule or capsule shape so that it does not require a mixing step immediately before use, and increases the work efficiency of the user. Easy to use. Moreover, since the shape of the sealant of this invention is lighter than a liquid sealant, the effort which a user conveys a sealant to a use place can be reduced.

The present invention is a sealant containing oil and a surfactant, and the dosage form of the sealant is any of powder, granule, tablet, sheet, seamless capsule, or capsule. It relates to sealant.

In a preferred embodiment of the present invention, the oil is spindle oil, transformer oil, neutral oil, bright stock oil, petroleum naphtha, gasoline, kerosene, light oil, process oil, liquid paraffin, synthetic ether oil, synthetic polyalkylene glycol oil. , A sealant as described above, comprising one or more oils selected from synthetic polyalphaolefins, alkylbenzene oils, and silicone oils.

A preferred embodiment of the present invention is the sealant described above, wherein the oil comprises spindle oil or liquid paraffin.

A preferred embodiment of the present invention is the sealant described above, which contains a polyoxyethylene ether derivative as the surfactant.

In a preferred embodiment of the present invention, as the surfactant, either or both of a first polyoxyethylene ether derivative represented by the following formula 1 and a second polyoxyethylene ether derivative represented by the following formula 2 are used. It is a sealant as described in the above.
R ¹ —PhO (Ch ₂ Ch ₂ O) _n H (Formula 1)
Here, in (Formula 1), R ¹ represents a linear alkyl group having 5 to 20 carbon atoms or a branched alkyl group having 5 to 20 carbon atoms, Ph represents a phenyl group, and n represents 2 or more. An integer of 30 or less is shown.
R ² —O (Ch ₂ Ch ₂ O) _m H (Formula 2)
In the above (Formula 2), R ² represents a linear alkyl group having 10 to 30 carbon atoms or a branched alkyl group having 10 to 30 carbon atoms, Ph represents a phenyl group, and m represents 2 An integer of 10 or less is shown.

A preferred embodiment of the present invention includes the first polyoxyethylene ether derivative represented by the following formula 1 and the second polyoxyethylene ether derivative represented by the following formula 2 as the surfactant: It is a sealant.
R ¹ —PhO (Ch ₂ Ch ₂ O) _n H (Formula 1)
Here, in the above (Formula 1), R ¹ represents a linear alkyl group having 7 to 11 carbon atoms or a branched alkyl group having 7 to 11 carbon atoms, Ph represents a phenyl group, and n represents 3 An integer of 25 or less is shown.
R ² —O (Ch ₂ Ch ₂ O) _m H (Formula 2)
Here, in the above (Formula 2), R ² represents a linear alkyl group having 16 to 20 carbon atoms or a branched alkyl group having 16 to 20 carbon atoms, Ph represents a phenyl group, and m represents 3 An integer of 5 or less is shown.

A preferred embodiment of the present invention is the sealant described above, wherein the weight ratio of the oil and the surfactant (oil / surfactant) contained in the sealant is 10 or more and 50 or less.

A preferred embodiment of the present invention is the sealant described above, further containing a fungicide or a preservative.

A preferred embodiment of the present invention is the sealant as described above, further including either or both of a foaming agent and a heat generating agent.

In a preferred embodiment of the present invention, the dosage form of the sealant is a seamless capsule or a capsule,
The sealant according to any one of the above, further comprising a hydration exothermic substance. Hydration exothermic substances are substances that generate heat when exposed to water. The hydrating exothermic material may be present in the capsule along with the water sealant component. Hydrating pyrogens may be mixed in the capsule. The hydration exothermic substance may exist separately from the capsule, and may be input to the drain outlet separately when the capsule is input to the drain outlet. Capsules generally have increased solubility at high temperatures. In the case of a substance containing a hydration exothermic substance, when a part of the hydration exothermic substance comes into contact with water, an exothermic phenomenon occurs and the capsule dissolves.

In a preferred embodiment of the present invention, the dosage form of the sealant is a seamless capsule or capsule, and the seamless capsule or capsule includes a layer containing a hydration exothermic substance and a protective layer covering the layer containing the hydration exothermic substance. Is included. The sealant of this aspect is prepared by, for example, preparing a seamless capsule or capsule containing oil in a layer containing a hydrating pyrogen, and then dip-coating it into the material constituting the normal capsule according to a conventional method. A protective layer may be formed. Since a protective layer is present, this sealant is convenient for transportation. On the other hand, since there is a layer containing a hydrated exothermic substance, the protective layer can be made relatively thin. Therefore, the protective layer is easily dissolved in water. When a part of the protective layer dissolves in water, the hydration exothermic substance is exposed and heat is generated in a chain, dissolving the capsule.

In a preferred embodiment of the present invention, the sealant dosage form is a seamless capsule or capsule, and the hydration exothermic substance is sodium hydroxide, potassium hydroxide, calcium hydroxide, barium hydroxide, potassium chloride, calcium chloride, It contains any one or more of quicklime, potassium, sodium, magnesium, aluminum, hydrochloric acid, nitric acid and sulfuric acid.

According to the present invention, it is possible to provide a sealant that can prevent the sealing water from evaporating. Since the sealant of the present invention is in the form of powder, granules, tablets, sheets, seamless capsules or capsules, it is not necessary to perform a work such as mixing the sealant immediately before use, and the work of the user Efficiency can be increased. Moreover, since it is lighter than a liquid sealant, it is possible to reduce the burden when the user transports the sealant to a place where the sealant is used.

FIG. 1 is a photograph replacing a drawing showing the obtained sealant. FIG. 2 is a graph replaced with a drawing showing the evaporation preventing effect of the sealant. FIG. 3 is a photograph in place of a drawing showing the state of the drain pipe used in the example. FIG. 3A shows an empty drain. FIG. 3B shows the drain pipe with water. FIG. 3C shows a state immediately before the sealant is administered. FIG. 3D shows a state when a sealant is administered. FIG. 4 is a photograph replaced with a drawing showing the state of the sealed water pipe after the sealant is administered. 4A shows after 1 minute, FIG. 4B shows after 5 minutes, FIG. 4C shows after 10 minutes, FIG. 4D shows after 30 minutes, FIG. 4E shows after 12 hours, and FIG. 4F shows after 24 hours. FIG. 5 is a photograph replacing a drawing showing a state when the sealant is discharged. FIG. 5A shows a preparation stage for discharging the sealant, and FIG. 5B shows a state after the sealant is discharged. FIG. 6 is a photograph replacing a drawing showing a capsule sealant. FIG. 7 is a photograph replaced with a drawing showing the experimental progress of this example. Fig.7 (a) is the photograph replaced with drawing which shows a mode that a capsule sealant is thrown into a pseudo-U-shaped water pipe. FIG.7 (b) is a photograph replaced with drawing which shows the mode of the pipe bottom part after throwing a capsule sealing agent. FIG.7 (c) is the photograph replaced with drawing which shows the mode of sealing water several minutes after throwing a capsule sealing agent. FIG. 7D is an enlarged photograph of the drain outlet side of FIG. FIG. 7 (e) is an enlarged photograph of the sewage side of FIG. 7 (c).

The first aspect of the present invention relates to a sealant containing oil and a surfactant. The dosage form of the sealant of the present invention is preferably any of powder, granule, tablet, sheet, seamless capsule or capsule. In the present invention, the sealing agent is an agent for preventing evaporation of the sealing water in the sealing pipe. Sealed water is water stored in a drain trap that serves to prevent pests and odors from entering indoors through pipes that drain water from outside. Conventionally, water has been used for sealing water. For this reason, there is a problem that in a drain pipe that has not been used for a long period of time, the sealed water does not evaporate and pests and odors enter the room. Therefore, since the sealant of the present invention contains oil, the oil in the sealant creates a film on the water surface after the sealant is put into the sealant. Thereby, the sealing agent of this invention can prevent the evaporation of sealing water effectively. In addition, since the sealant of the present invention contains a surfactant, when water is poured into the drain pipe, the oil and water in the sealant are mixed by the surfactant and flow without clogging the seal pipe. be able to.

As the oil used in the sealant of the present invention, there is an oil that exists as a liquid at room temperature. As such oils, spindle oil, transformer oil, neutral oil, bright stock oil, petroleum naphtha, gasoline, kerosene, light oil, process oil, liquid paraffin, synthetic ether oil, synthetic polyalkylene glycol oil, synthetic polyalpha The thing using 1 type, or 2 or more types of oil chosen from olefin, alkylbenzene oil, and silicone oil is mention | raise | lifted. Among these, “spindle oil” or “liquid paraffin” demonstrated by Examples is preferable. That is, the sealant of the present invention is preferably composed mainly of spindle oil or liquid paraffin as the oil component. However, oils other than spindle oil and liquid paraffin may be included.

Examples of the surfactant used in the sealant of the present invention include polyoxyethylene ether derivatives. As demonstrated in the examples, the liquid paraffin can effectively prevent evaporation of the sealed water by including the polyoxyethylene ether derivative. Moreover, a sealing agent can be discharged | emitted effectively by containing a polyoxyethylene ether derivative with respect to liquid paraffin. Examples of the “surfactant” in the present invention include those containing either or both of the first polyoxyethylene ether derivative and the second polyoxyethylene ether derivative. Preferred are those containing both the first polyoxyethylene ether derivative and the second polyoxyethylene ether derivative.

The first polyoxyethylene ether derivative is represented by (Formula 1).
R ¹ —PhO (Ch ₂ Ch ₂ O) _n H (Formula 1)
In the above (Formula 1), R ¹ represents a linear alkyl group having 5 to 20 carbon atoms or a branched alkyl group having 5 to 20 carbon atoms, Ph represents a phenyl group, and n represents 2 An integer of 30 or less is shown.
A preferred first polyoxyethylene ether derivative is that in the above (formula 1), R ¹ represents a linear alkyl group having 7 to 11 carbon atoms or a branched alkyl group having 7 to 11 carbon atoms, and Ph Represents a phenyl group, and n represents an integer of 3 to 25.

The second polyoxyethylene ether derivative is represented by (Formula 2).
R ² —O (Ch ₂ Ch ₂ O) _m H (Formula 2)
In the above (Formula 2), R ² represents a linear alkyl group having 10 to 30 carbon atoms or a branched alkyl group having 10 to 30 carbon atoms, Ph represents a phenyl group, and m represents 2 or more. An integer of 10 or less is shown.
A preferred second polyoxyethylene ether derivative is that in the above (Formula 2), R ² represents a linear alkyl group having 16 to 20 carbon atoms or a branched alkyl group having 16 to 20 carbon atoms, and Ph Represents a phenyl group, and m represents an integer of 3 to 5.

The sealant of the present invention may further contain a fungicide or a preservative. The sealant of the present invention is usually used for drain pipes that are not used for a long time. For this reason, the situation where the water in the sealed water rots occurs. Therefore, it is possible to avoid such a situation where the sealing water is rotted by including a fungicide or a preservative in the sealing agent. The fungicides and preservatives contained in the sealant are not particularly limited, and those skilled in the art can appropriately use known ones.

Further, the sealant of the present invention may further contain a foaming agent. The water-sealing agent of the present invention is used by putting it in the water. Foaming agents generate bubbles in the water. Therefore, the components of the sealant are dispersed in the sealant by the water flow generated when the foam generated from the foaming agent rises. Therefore, it is possible to prevent a situation where the sealant is present at a high concentration locally (particularly around the sealant). Therefore, a sealant containing a foaming agent is preferable because it can increase the dissolution rate of the sealant, and the sealant can be easily mixed with the sealant. Examples of the foaming agent of the present invention include bicarbonate or carbonate. Examples of the bicarbonate or carbonate include sodium bicarbonate, ammonium bicarbonate, potassium bicarbonate, sodium bicarbonate, sodium sesquicarbonate, sodium carbonate, ammonium bicarbonate, magnesium carbonate, and iron carbonate. A foaming agent may be contained in the sealing agent of this invention individually or in 2 types or more. If the amount of the foaming agent contained in the sealant of the present invention is too small, the amount of foam generated is not sufficient and no upward flow occurs. Therefore, the amount of the foaming agent contained in the sealant of the present invention is 0.1 to 50 parts by weight, preferably 1 to 20 parts by weight when the total weight of the sealant is 100 parts by weight. is there.

Moreover, the sealant of the present invention may further contain an exothermic agent. The exothermic agent used in the present invention is preferably one that generates heat by reacting with water. Those skilled in the art can appropriately use known exothermic agents. Examples thereof include a hydroxide such as calcium oxide or an anhydrous salt such as calcium chloride. When the sealing agent of the present invention containing such a heat generating agent is put into the sealing water, the sealing water temperature rises. Therefore, the oil contained in the sealant of the present invention is easily dissolved. Therefore, the solubility of the water-sealing agent of the present invention is increased, and a film can be effectively formed on the surface of the water-sealing surface. The amount of the exothermic agent contained in the sealant of the present invention is 0.1 to 50 parts by weight, preferably 1 to 30 parts by weight, when the total weight of the sealant is 100 parts by weight. More preferably, it is 5 to 20 parts by weight. By containing such an amount of exothermic agent, the oil can be dissolved efficiently and a film (oil film) can be formed on the sealed surface.

As described above, the sealant of the present invention may be in the form of powder, granules, tablets, sheets, seamless capsules or capsules. A liquid sealant may be used as the sealant of the present invention. However, if the sealant contains liquid (water), the weight increases accordingly. In order to reduce the transportation labor of the user, powder, granules, tablets, sheets, seamless capsules or capsules having a low water content are preferable. Since the drain trap using the sealant of the present invention is U-shaped as shown in FIG. 4, there are two sealed surfaces. In order to prevent the sealing water from evaporating and causing pests and odors to enter the room, it is preferable to cover the two sealing surfaces with a film. Therefore, the shape of the sealant of the present invention is more preferably a granular shape, a tablet shape, a sheet shape, a seamless capsule or a capsule, and more preferably a tablet shape, a sheet shape, a seamless capsule or a capsule. By adopting such a shape, the sealant easily sinks in water to the lower part of the U shape of the drain trap. Then, the sealant dissolves in the U-shaped lower part of the drain trap. The sealant dissolved in the lower part of the U-shape floats on the seal surface into which the sealant is charged and the other seal surface, and forms a film on the seal surface. Therefore, evaporation of the sealed water can be effectively prevented.

The manufacturing method of the sealant of the present invention is listed below, but is not limited to the following method, and those skilled in the art can make appropriate changes.

Liquid sealant The liquid sealant of the present invention can be produced by using a production method including a mixing step for preparing a mixed solution in which components contained in the sealant are co-dissolved. In the step of mixing the liquid sealant, a solution containing oil, surfactant and water may be stirred at 5 to 80 ° C. until the surfactant is dissolved. The temperature at the time of stirring is not specifically limited, If it is those skilled in the art, it can adjust suitably according to the characteristic of the component to be used. The weight ratio of oil to surfactant (oil / surfactant) when producing the sealant of the present invention is 10 or more and 50 or less. By including the oil and the surfactant at such a weight ratio, it is possible to effectively prevent the seal water from evaporating, while the sealant can be effectively discharged.

Powder sealant and granular sealant Such a powder sealant and granular sealant of the present invention include a mixing step for preparing a mixed solution containing components contained in the sealant, and a mixed solution. It can manufacture using the manufacturing method including the drying process which dries. Examples of the drying process of the present invention include a freeze drying process, a spray drying process, a fluidized bed granulation drying process, and a dry pulverization granulation process. Examples of the size of the powder sealant of the present invention produced by such a production method include a size that fits in a sphere having a diameter of less than 500 μm. The granular sealant of the present invention includes a size that fits in a sphere having a diameter of 500 μm or more and less than 5 mm.

[Mixing process]
The mixing step is a step of dissolving the oil and surfactant contained in the sealant to produce a mixed solution. In the mixing step, the solution containing the surfactant and oil is stirred at 5 to 80 ° C. to dissolve the surfactant. In the mixing step of the present invention, when the surfactant is difficult to dissolve in oil, it may be dissolved in a known solution such as water to form a mixed solution containing oil and surfactant. Thereafter, as described below, the mixed solution is dried to obtain a solid. The powdery or granular sealant of the present invention can be obtained by crushing the above solid material by a known method and classifying the particle diameter with a sieve or the like in order to obtain a sealant with a desired particle size. it can.

The powdery or granular sealant of the present invention may contain a known excipient. The excipient may be added to the mixed solution containing oil and surfactant in the mixing step. Alternatively, an excipient may be used to coat around a powdery or granular sealant. By including the excipient in this way, it is easy to produce a solid material, and it is possible to keep oil that is liable to be liquefied at room temperature in a solid state. Those skilled in the art can appropriately use such excipients according to oils and surfactants used for sealants.

Further, when producing a powder sealant or a granular sealant containing a foaming agent, a mixed solution in which the foaming agent is co-dissolved may be used. When the foaming agent is co-dissolved, it is preferable to carry out under a high pressure after the mixing step in order to prevent bubbles from being generated from the mixed solution during the sealant manufacturing process. Such manufacturing conditions can be appropriately adjusted by those skilled in the art based on the amount of the foaming agent contained.

[Freeze drying process]
The freeze-drying step is a step of sublimating water from a frozen material under reduced pressure. A freeze-drying process is performed in the following processes. (1) The material (mixed solution) is allowed to cool for 2 to 3 hours at room temperature 4 ° C. and normal pressure (cooling step). (2) Place at room temperature-50 ° C. under normal pressure for 12-15 hours and freeze (freezing step). (3) Crystallize at room temperature-20 ° C under normal pressure for 4-6 hours. (Crystallization step). (4) Place at room temperature-50 ° C. under normal pressure for 14-16 hours and refreeze (refreezing step). (5) Place at room temperature-13 ° C. and pressure 10-20 kPa (high vacuum) for 24-26 hours (first drying step). (6) Place at room temperature 24 ° C. and pressure 10-20 kPa (high vacuum) for 10-121 hours (second drying step). (7) Place at room temperature 24 ° C under normal pressure. In this way, in the freeze-drying process, it is frozen at a low temperature, and moisture (ice) is sublimated and removed under high vacuum. What is necessary is just to grind | pulverize the freeze-dried material of the obtained sealing agent, and make it a predetermined particle size. In order to obtain a sealant with a desired particle size, a known method such as sieving can be used. The freeze-drying process of the present invention is not limited to the above process, and those skilled in the art can appropriately change parameters such as temperature, pressure, and time of each process. In the present invention, when the oil used has a high melting point, it is preferable to include a known water-soluble excipient as a component of the sealant. Thus, by including an excipient | filler, powderization and granulation of a liquid sealant can be performed efficiently.

[Spray drying process]
The spray drying (spray drying) process is a method in which a material solution is sprayed together with hot air from a nozzle having a small hole diameter to form fine droplets in a chamber and dried in a short time. The spray drying process can be performed using a known spray dryer (spray dryer). The sealant of the present invention can be produced, for example, by the following steps. (1) The material (mixed solution) is fed into the chamber with hot air at 100 to 300 ° C. from a nozzle with a pore diameter of 0.1 to 5 mm at an air pressure of 0.5 to 2.5 kg / m ² and a flow rate of 25 to 50 L / min Spray (spraying process). (2) The sprayed material is dried with hot air at a temperature of 150 to 300 ° C. and a speed of 0.5 to 1 m / s for 30 seconds to 5 minutes (drying process). Thus, in the spray-drying process, hot air is applied to the fine droplets formed by spraying the material into the high-temperature chamber and dry granulation is performed. A person skilled in the art can adjust the size of the sealant produced according to the pore diameter of the nozzle and the components of the mixed solution. Moreover, the sealant of this invention is good also as a sealant of a desired particle size by crushing the sealant manufactured at the spray-drying process. In order to obtain a sealant with a desired particle size, a known method such as sieving can be used. The powdery or granular sealant of the present invention is not limited to the above process, and those skilled in the art can manufacture it by appropriately changing parameters such as temperature and time in each process.

[Fluidized bed granulation drying process]
The fluidized bed granulation drying process is a process in which granulation drying is performed while fluidizing the material containing moisture by applying warm air. The fluidized bed granulation drying process can be performed using a known fluidized bed granulation dryer. The sealant of the present invention can be produced, for example, by the following steps. (1) While stirring the material (mixed solution), warm air at a temperature of 50 to 100 ° C. and a wind speed of 1 to 2 m / s is applied for 10 to 30 minutes (substantially drying step). (2) The material is subjected to warm air at a temperature of 20 to 50 ° C. and a wind speed of 2 to 5 m / s for 30 minutes to 1 hour (granulation step). (3) Apply hot air at a temperature of 50 to 100 ° C. and a wind speed of 1 to 2 m / s to the material for 30 minutes to 2 hours (drying step). (4) Apply cold air at a temperature of 5 to 20 ° C. and a wind speed of 1 to 2 m / s to the material for 10 to 60 minutes (cooling step). Thus, in the fluidized granulation drying process, the material is granulated by applying hot air to the material and drying the material while flowing in the air. A person skilled in the art can adjust the particle size to be produced by appropriately changing the wind speed applied to the material. Moreover, the powdery or granular sealant of the present invention may be pulverized after granulation to obtain a desired particle size. A known method such as sieving may be used as a method of pulverizing to obtain a desired particle size. The powdery or granular sealant of the present invention is not limited to the above process, and those skilled in the art can appropriately set parameters such as temperature and wind speed in each process according to the moisture content of the material. Can be modified and manufactured.

[Dry grinding granulation process]
The dry pulverization granulation step is a method of obtaining a granulated product by drying and then pulverizing a material containing moisture. The sealant of the present invention can be produced, for example, by the following steps. (1) Stir for 1 to 5 hours at a stirring speed of 10 to 100 / min while applying hot air of 50 to 80 ° C. to the material (mixed solution) (drying step). (2) Apply a cold air of 5 to 15 ° C. to the dried material to cool it (cooling process). (3) The cooled material is pulverized with a pulverizer (pulverization step). (4) The pulverized material is sieved with a sieve of a predetermined size (sieving step). Thus, in the dry pulverization granulation step, a sealant having a desired particle diameter is manufactured by pulverizing a material once manufactured as a large lump. However, the present invention is not limited to the above steps, and those skilled in the art can appropriately change parameters such as temperature and time of each step.

In addition, the powdery sealant or granular sealant of the present invention can be measured with a measuring spoon at the time of use and put into the sealant. The powder sealant or granular sealant of the present invention may be prepackaged in a bag made of a water-soluble material in a predetermined amount (for example, a single use amount). Such a method is known and can be appropriately manufactured and used by those skilled in the art.

Tablet-like sealant The tablet-like sealant of the present invention is a production process including a step of making a mixed solution containing components contained in the sealant (mixing step) and a step of drying the mixed solution (drying step). It can manufacture using the manufacturing method which further includes the process (compression molding process) which carries out the compression molding of the manufactured powdery or granular sealant. In addition, the process similar to a powdery sealant or a granular sealant can be used for a mixing process and a drying process. Moreover, when including a foaming agent in a tablet-like sealant, you may use the said method of co-dissolving in a mixed solution. And when either or both a foaming agent and a heat generating agent are included in a tablet-like sealant, each may be separately powdered or granulated, and may be contained in one tablet by compression molding.

[Compression molding process]
The compression molding step is a step of molding by filling a predetermined mold with the sealant produced in the above powder form or granule and compressing it with a compressor. When the pressure at the time of compression is too high, the sealant becomes hard, so it takes time to dissolve. On the other hand, if the pressure is too small, the sealant will not harden. Therefore, the compression pressure for producing the tablet-like sealant of the present invention is 0.5 to 10 kgf / cm ² . Since the sealant of the present invention contains oil, when the sealant is compressed at a high temperature, the sealant starts to dissolve and the dosage form is likely to change. Therefore, it is necessary to adjust the temperature appropriately according to the properties of the oil contained in the sealant and other additives. Such temperature adjustment can be appropriately performed by those skilled in the art according to the nature of the substance contained in the sealant. Moreover, the compressor used for compression is not specifically limited, A well-known thing can be used.

The shape of the tablet-like sealant of the present invention is not particularly limited. Examples of the shape of the tablet-like sealant include a cylindrical shape, a spherical shape, a cubic shape, and a conical shape. Furthermore, the tablet-like sealant of the present invention may have one or more depressions. By providing a dent in the tablet-like sealant, the contact area with the sealant is increased and can be dissolved quickly. In order to accelerate the dissolution of the sealant, it is preferable to increase the porosity of the tablet. Increasing the porosity of the tablet makes it easier for sealed water to enter the tablet. That is, since the area of the sealant that comes into contact with the seal water is increased, the solubility can be improved. Therefore, the porosity of the tablet-like sealant of the present invention is 1 to 70%. If the porosity is too high, it is necessary to use a large amount of binder to keep the sealant in the tablet shape. When the amount of the binder increases, the solubility of the sealant decreases. Therefore, the porosity of the tablet sealant of the present invention is preferably 10 to 50%, more preferably 20 to 40%. In addition, when increasing the porosity, in order to prevent the tablet shape from collapsing, it may be coated with a water-soluble sheet described below. By covering with a water-soluble sheet, a tablet-like sealant that is easily dissolved in the seal water can be obtained. The size of the shape of such a tablet-like sealant is not particularly limited, and examples thereof include a size that fits in a tetrahedron having a side of 10 cm. A person skilled in the art can appropriately adjust the size of the sealant according to the drain pipe to be used.

As described above, when producing a tablet-like sealant by compressing a powdery or granular sealant, a known binder may be included as a component of the sealant. Since the sealant of the present invention is dissolved in the sealant, it is desirable that the binder used in the tablet-shaped sealant of the present invention is water-soluble. As the water-soluble binder used in the sealant of the present invention, known ones can be used, and examples thereof include polyethylene glycol, polyvinyl pyrrolidone, sucrose, dextrose, and cellulose derivatives. The tablet-like sealant of the present invention may contain known additives such as excipients and pigments. A person skilled in the art can produce tablets by appropriately adding known additives.

Sheet-form sealant The sheet-form sealant of the present invention was dried by a step of making a mixed solution containing the components contained in the sealant (mixing step), a step of drying the mixed solution (drying step), and It can manufacture using the manufacturing method including the process (sheet coating process) which coat | covers an agent in a sheet form with a water-soluble sheet | seat. The size and thickness of the sheet-like sealant of the present invention are not particularly limited, and those skilled in the art can appropriately design according to the intended use. The sheet-like sealant of the present invention further includes a sheet coating step after the mixing step and the drying step for producing the above powder and granules. As the water-soluble sheet used in the sheet sealant of the present invention, a known sheet can be used. Examples of the water-soluble sheet include a water-soluble film, a nonwoven fabric or woven fabric made of water-soluble polymer fibers, or a laminated substrate of a nonwoven fabric or woven fabric made of a water-soluble film and water-soluble polymer fibers. Water-soluble polymers include polyvinyl alcohol, polyvinyl pyrrolidone, pullulan, polyacrylamide, polyacrylic acid, polymethacrylic acid, polyitaconic acid, polyethylene oxide, polyvinyl methylene ether, xanthan gum, gar gum, collagen, carboxymethyl cellulose, hydroxypropyl cellulose, and hydroxy Examples include ethyl cellulose. Such a water-soluble sheet can be produced by a known method such as the method disclosed in JP-A-10-280291.

[Sheet coating process]
The sheet covering step is a step of adhering a powder, granule, paste, or gel sealant to one side of the water-soluble sheet, and further covering the sealant with the water-soluble sheet. The sheet-like sealant of the present invention sandwiches a powdery, granular, or paste-like sealant with a water-soluble sheet. The sheet-like water-sealing agent of the present invention is not limited to sandwiching the water-sealing agent with two water-soluble sheets, and the water-soluble sheet and the water-sealing agent may be layered to form a multilayer. In this case, the outermost layer is preferably a water-soluble sheet. The total number of the multi-layer sheet sealant is 3 to 100 sheets. In this case, the thickness ratio of the water sealant layer to the water-soluble sheet (water sealant layer / water-soluble sheet) is 1 to 50. A person skilled in the art can appropriately adjust depending on the properties of the water-soluble sheet used.

Seamless Capsule Sealant The seamless capsule sealant of the present invention comprises a step of producing a mixed solution containing the components contained in the sealant (mixing step) and a step of coating the mixed solution with a film (film coating step). It can manufacture using the manufacturing method containing. The seamless capsule sealant of the present invention may include the drying step after the mixing step. That is, the seamless capsule sealant may be a liquid or a solid. The liquid or solid, which is the content of the seamless capsule sealant of the present invention, can be produced through the mixing step or the mixing step and the drying step.

[Film coating process]
The film coating step is a step of forming a film around a solid or liquid sealant. The film coating step can be manufactured using a known method such as a dropping method. For the coating process of the seamless capsule, a known seamless capsule apparatus such as the apparatus disclosed in JP-A-6-154587 can be used. When the seamless capsule device is used, the capsule contents and the capsule film solution are set in the device, and the capsule contents are coated. A capsule film selected from the group consisting of gelatin, agar, tapioca starch, carrageenan, curdlan, gellan gum, xanthan gum, caraya gum, locust bean gum, gum arabic, pullulan, methylcellulose, hydroxyethylcellulose, hydroxypropylmethylcellulose, sodium alginate , And any combination thereof. The capsule film solution can be prepared by dissolving the capsule film with a solution as appropriate. Those skilled in the art can appropriately select the concentration of the capsule film solution and the solution for dissolving the capsule film. The size of the seamless capsule sealant of the present invention is not particularly limited, and examples thereof include 1 × 10 ⁰ to 1 × 10 ² mm. However, if it is too large, there is a high possibility that the capsule contents will not be completely covered with the film during production. On the other hand, if it is too small, a lot of coating is required for coating. Therefore, the seamless capsule sealant of the present invention is preferably 3 × 10 ⁰ to 5 × 10 mm, more preferably 5 × 10 ⁰ to 3 × 10 mm. The thickness of the seamless capsule sealant film may be appropriately changed according to the size of the seamless capsule sealant and the shape of the contents, and can be adjusted as appropriate by those skilled in the art.

Capsule sealant Examples of the capsule sealant of the present invention include a soft capsule sealant and a hard capsule sealant. In the present invention, a soft capsule sealant is preferable because it is preferable that it is easily dissolved in the sealed water. Examples of the capsule material of the soft capsule sealant include gelatin, glycerin, sorbitol, calcium alginate, pullulan, agar and starch. Such capsules are water-soluble. Therefore, it is easy to melt when thrown into the sealed water, and the sealant in the capsule is released into the sealed water, and the situation where the sealed water evaporates can be suppressed. The capsule preferably contains powdered oil, powdered surfactant, and powdered hydration pyrogen.

The capsule sealant of the present invention includes a step of making a mixed solution containing components contained in the sealant (mixing step), a step of drying the mixed solution (drying step), and encapsulating the dried agent in a capsule. It can manufacture using the manufacturing method including a process (encapsulation process). The dosage form of the sealant in the capsule of the capsule sealant of the present invention is not particularly limited, and examples thereof include the powdery sealant and the granular sealant.

[Encapsulation process]
As an example of encapsulating a filling content (powder sealant or granular sealant) with a capsule film, such a soft capsule sealant is produced by, for example, adding 100 parts by weight of glycerin or gelatin. Add 20-40 parts by weight of sorbitol and 90 parts by weight of water, heat to 80-90 ° C., stir and dissolve to prepare a gelatin solution, and if necessary, add 1-5 dyes or titanium oxide for coloring purposes. After the addition of parts by mass, a gelatin sheet was prepared by cooling the prepared gelatin solution into a thin film having a thickness of 0.5 to 1.0 mm using a rotary soft capsule filling machine. Soft gelatin capsules can be manufactured by punching and drying the gelatin sheet in which the solution of the filling contents is sprayed onto the surface by a pump just before punching through a roll mold

When the dosage form of the sealant of the present invention is a seamless capsule or capsule (hereinafter collectively referred to as a capsule), the capsule may not be dissolved if the temperature of the seal water is cold. For this reason, it is preferable that the sealant further contains a hydration exothermic substance. Examples of hydrating pyrogens are sodium hydroxide, potassium hydroxide, calcium hydroxide, barium hydroxide, potassium chloride, calcium chloride, quicklime, potassium, sodium, magnesium, aluminum, hydrochloric acid, nitric acid, and sulfuric acid. Or 2 or more types are mention | raise | lifted. Among these, metal powder (potassium, sodium, magnesium, and aluminum powder) is preferable. Capsule sealants are generally oil-based. For this reason, the specific gravity of the capsule sealant may be reduced. Therefore, the specific gravity of the sealant can be adjusted by adding metal powder. Then, by making the specific gravity of the sealant of the capsule close to 1 or slightly larger than 1 (for example, 1.01 or more and 2 or less, or 1.1 or more and 1.5 or less), The sealant moves to the sewage side and drain outlet side. And since a sealant melt | dissolves in the state which the sealant moved to the sewer side and the drain port side, the surface of the sewage side and the drain port side can be covered with oil. In particular, when the capsule contains a metal, when one sealant dissolves, an exothermic reaction occurs, and the surrounding capsule easily dissolves. For this reason, when putting a plurality of sealing agents into one drain outlet, it is preferable to prepare a thick capsule and a thin capsule and put them together. The amount of hydrated exothermic substance added may be adjusted as appropriate in consideration of the specific gravity of the sealant, exothermic properties and safety. The hydration exothermic substance may be encapsulated in the capsule mixed with the oil component. On the other hand, the hydrated pyrogen may be present separately from the capsule. In this case, when the sealant is introduced into the drain outlet, the capsule may be introduced into the drain outlet and the hydrated exothermic substance may be introduced into the drain outlet.

Moreover, the hydration exothermic substance may be included as a composition of the capsule itself. In this case, when a sealant is introduced into the drain, the hydrated exothermic substance present in the capsule generates heat, so that the capsule can be easily dissolved. On the other hand, if a hydrated exothermic substance is present on the capsule surface, care must be taken in handling the sealant. Therefore, it is preferable that the capsule includes a layer containing a hydration exothermic substance and a protective layer existing outside the layer. By employing a multi-layer structure in this way, the protective layer does not dissolve under normal handling conditions. On the other hand, when a sealant is introduced into water, the protective layer dissolves and a part of the layer containing the hydrated exothermic substance is exposed. Then, since the hydration exothermic substance contained in the layer reacts with water and generates heat, the capsule is easily dissolved.

The sealant of the present invention is dissolved as it is in a drain trap where the seal water is accumulated, and the oil in the sealant forms a film (oil film) on the seal surface. Thereby, the situation where seal water evaporates can be prevented. If a liquid sealant is used, it should be thoroughly stirred before use. The sealant in the form of powder, granules, tablets, sheets, soft gels or capsules may be agitated using a stick or the like after being placed in a drain trap where the sealant is stored. By stirring the seal water, the dissolution rate of the sealant can be increased. Moreover, the powder, granule, tablet, sheet, soft gel, or capsule sealant may be dissolved in a container containing water before being put into the drain trap. A person skilled in the art can appropriately change the amount of the sealant introduced into the drain trap according to the amount of the seal water in the drain trap and the thickness of the oil film formed after the sealant is added. it can.

The sealant of the present invention contains a surfactant. Therefore, when water is flowed when using the drain pipe, the oil is emulsified by the surfactant, and the sealant containing the oil can be effectively discharged.

Hereinafter, examples of the present invention will be described, but the present invention is not limited to the examples. Appropriate changes can be made to the dosage form and amount of the sealant used.

The composition of the sealant stock solution was 76% by weight of moisture and fragrance, 23% by weight of liquid paraffin, and 1% by weight of surfactant. Trace amounts of preservatives and dyes were added to this stock solution. As a fragrance, Ogawa Fragrance Peppermint Flavor was added. As a liquid paraffin, High White 70 manufactured by Nippon Oil Corporation was used. High white 70 is a liquid paraffin having a petroleum hydrocarbon ratio of 100%. As the surfactant, a mixture of Nonipol 40, Sanyo Kasei Kogyo Co., Ltd., Nonipol 200, NP-EOA 70, Miyoshi Oil & Fats Co., Ltd., and EN-1504 by Aoki Oil & Fat Co., Ltd. was used. Nonipol 40 is polyoxyethylene nonylphenyl ether having an average addition mole number of about 4. Nonipol 200 is polyoxyethylene nonylphenyl ether having an average added mole number of about 20. NP-EOA70 is polyoxyethylene nonylphenyl ether having an average addition mole number of less than 15. EN-1504 is a polyoxyethylene oleyl ether having an average addition mole number of 4. Moreover, PROXEL2 (S) by Arch Chemicals Japan Co., Ltd. was used as a preservative. As a dye, Nippon Kayaku Co., Ltd. KAYANOL MILLING TURQUIOISEBLUE 3G (Acid Blue 185) was used.

When each component was mixed, a sealant separated into two liquids could be obtained. FIG. 1 is a photograph replacing a drawing showing the obtained sealant.

A sealant was produced in the same manner as in Example 1 except that spindle oil was used instead of the liquid paraffin in Example 1.

Evaporation prevention test 100 g of the sealant produced in Example 1, 100 g of the sealant produced in Example 2, and 100 g of the aqueous solution containing no fluid olefin in Example 1 were placed in a 300 cc beaker. Then, the state in which moisture was evaporated under an atmosphere at a temperature of 105 ° C. was inspected. The results are shown in Table 1 and FIG. FIG. 2 is a graph replaced with a drawing showing the evaporation preventing effect of the sealant.

In Table 1, only the aqueous solution shows a control experiment. In Table 1, aqueous solution + paraffin represents the sealant produced in Example 1. In Table 1, “aqueous solution + spindle” indicates the sealant produced in Example 2. From Table 1 or FIG. 2, it was shown that water added with the sealant of the present invention did not evaporate even under heating conditions.

Next, we conducted an experiment to confirm the use of sealant. In this experiment, the sealant produced in Example 1 was used. FIG. 3 is a photograph in place of a drawing showing the state of the drain pipe used in the example. FIG. 3A shows an empty drain. FIG. 3B shows the drain pipe with water. FIG. 3C shows a state immediately before the sealant is administered. FIG. 3D shows a state when a sealant is administered. As shown in FIG. 3A, in this example, a vinyl chloride pipe having a diameter of 2.5 cm was used. This is because the vinyl chloride pipe is transparent and the inside of the pipe can be seen. As shown in FIG. 3B, tap water is accommodated. The sealant was thoroughly agitated before the sealant was administered to the pipe. Before stirring, the sealant was separated into an oil layer and an aqueous layer (and an emulsified layer). However, by the stirring, as shown in FIG. FIG. 3D shows a state when a sealant is administered. In this example, a sealant is administered using a beaker. In fact, the sealant may be administered using a special container.

FIG. 4 is a photograph replaced with a drawing showing the state of the sealed pipe after the sealant was administered. 4A shows after 1 minute, FIG. 4B shows after 5 minutes, FIG. 4C shows after 10 minutes, FIG. 4D shows after 30 minutes, FIG. 4E shows after 12 hours, and FIG. 4F shows after 24 hours. As shown in FIG. 4A, an aqueous layer (actually colored blue) and an emulsified layer were formed 1 minute after administration of the sealant. As shown in FIG. 4B, an oil film was formed 5 minutes after the sealant was administered. As shown in FIG. 4C and FIG. 4D, the water layer gradually dissolved in the tap water. As shown in FIG. 4E, it can be seen that 12 hours after administration of the sealant, the water layer spread over almost the entire tap water, but the water layer was not completely uniform. On the other hand, it can be seen that the oil film and the emulsified layer were clearly formed. As shown in FIG. 4F, it can be seen that 24 hours after administration of the sealant, the water layer spread over almost the entire tap water, although it was not completely uniform.

FIG. 5 is a photograph replacing a drawing showing a state when the sealant is discharged. FIG. 5A shows a preparation stage for discharging the sealant, and FIG. 5B shows a state after the sealant is discharged. As shown in FIG. 5A, in this embodiment, 500 cc of tap water was prepared to discharge the sealant. As shown in FIG. 5B, it can be seen that the sealant was almost completely discharged with 500 cc of tap water.

Production of Capsule Sealant A sealant containing rice oil and metallic sodium fine powder as a content and gelatin as a capsule was produced by a rotary die type soft capsule production machine according to a conventional method. FIG. 6 is a photograph replacing a drawing showing a capsule sealant.

Study on Solubility of Capsule Sealing Agent The capsule sealing agent produced in Example 5 was put into normal temperature tap water and 70 ° C. warm water, respectively. After 5 minutes, the sealant added to room temperature tap water did not dissolve. On the other hand, the sealant poured into warm water at 70 ° C. was completely dissolved, and the oil component covered the surface.

Performance evaluation of capsule sealant A simulated U-shaped water distribution pipe was prepared and the performance of the capsule sealant was evaluated. FIG. 7 is a photograph replaced with a drawing showing the experimental progress of this example. Fig.7 (a) is the photograph replaced with drawing which shows a mode that a capsule sealant is thrown into a pseudo-U-shaped water pipe. FIG.7 (b) is a photograph replaced with drawing which shows the mode of the pipe bottom part after throwing a capsule sealing agent. FIG.7 (c) is the photograph replaced with drawing which shows the mode of sealing water several minutes after throwing a capsule sealing agent. FIG. 7D is an enlarged photograph of the drain outlet side of FIG. FIG. 7 (e) is an enlarged photograph of the sewage side of FIG. 7 (c). As shown in FIG. 7A, five capsule sealants were put into a transparent pipe simulating the shape of a U-shaped water distribution pipe. As shown in FIG. 7B, the capsule sealant sank to the bottom of the tube. As shown in FIG. 7 (c), FIG. 7 (d) and FIG. 7 (e), the oil contained in the dissolved sealant covers the surface of the sewage side and the drain port side, and the evaporation preventing layer. Was forming.

The present invention can be effectively used in the field of building chemicals.

Claims

A sealant containing oil and a surfactant,
The sealant dosage form is
Powder, granule, tablet, sheet, seamless capsule or capsule,
Sealant.
The oil
Spindle oil, transformer oil, neutral oil, bright stock oil, petroleum naphtha, gasoline, kerosene, light oil, process oil, liquid paraffin, synthetic ether oil, synthetic polyalkylene glycol oil, synthetic polyalphaolefin, alkylbenzene oil, silicon Including one or more oils selected from among oils,
The sealant according to claim 1.
The sealant according to claim 1, wherein the oil comprises spindle oil or liquid paraffin.
The water sealant according to claim 1, comprising a polyoxyethylene ether derivative as the surfactant.
As the surfactant,
A first polyoxyethylene ether derivative represented by the following formula 1, and
Including one or both of the second polyoxyethylene ether derivatives represented by the following formula 2,
The sealant according to claim 1.

R 1 —PhO (Ch 2 Ch 2 O) n H (Formula 1)
(In the above (Formula 1), R 1 represents a linear alkyl group having 5 to 20 carbon atoms or a branched alkyl group having 5 to 20 carbon atoms, Ph represents a phenyl group, and n represents 2 to 30. The following integers are shown.)

R 2 —O (Ch 2 Ch 2 O) m H (Formula 2)
(In the above (Formula 2), R 2 represents a linear alkyl group having 10 to 30 carbon atoms, or a branched alkyl group having 10 to 30 carbon atoms, Ph represents a phenyl group, and m represents 2 to 10 carbon atoms. The following integers are shown.)
As the surfactant,
A first polyoxyethylene ether derivative represented by the following formula 1, and
Including a second polyoxyethylene ether derivative represented by the following formula 2,

The sealant according to claim 1.

R 1 —PhO (Ch 2 Ch 2 O) n H (Formula 1)
(In the above (Formula 1), R 1 represents a linear alkyl group having 7 to 11 carbon atoms or a branched alkyl group having 7 to 11 carbon atoms, Ph represents a phenyl group, and n represents 3 to 25. The following integers are shown.)

R 2 —O (Ch 2 Ch 2 O) m H (Formula 2)
(In the above (Formula 2), R 2 represents a linear alkyl group having 16 to 20 carbon atoms or a branched alkyl group having 16 to 20 carbon atoms, Ph represents a phenyl group, and m represents 3 to 5 carbon atoms. The following integers are shown.)
2. The sealant according to claim 1, wherein a weight ratio (oil / surfactant) of the oil and the surfactant contained in the sealant is 10 or more and 50 or less.
The sealant according to claim 1, further comprising a fungicide or a preservative.
Furthermore, the water sealant of Claim 1 in which either or both of a foaming agent and a heat generating agent are contained.
The sealant dosage form is
Seamless capsule or capsule,
Further includes hydrating pyrogens,
The sealant according to claim 1.
The sealant dosage form is
Seamless capsule or capsule,
The seamless capsule or capsule includes a layer containing a hydration exothermic substance and a protective layer covering the layer containing the hydration exothermic substance,
The sealant according to claim 1.
The sealant dosage form is
Seamless capsule or capsule,
In addition, any one or more of sodium hydroxide, potassium hydroxide, calcium hydroxide, barium hydroxide, potassium chloride, calcium chloride, quicklime, potassium, sodium, magnesium, aluminum, hydrochloric acid, nitric acid and sulfuric acid,
The sealant according to claim 1.