JP2000300594A - Refrigerant where hydrous gelled resin and another latent heat absorbent are combined - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cool the head of an emergency feverish patient for many hours by using a hydrous resin in which water is added to a polyvinyl alcohol acrylate copolymer in which an organic solvent solution such as alcohol, liquid menthol or the like is added and decomposed as a refrigerant. SOLUTION: When embodied in a cooling head bandage 1a, a gelled refrigerant 7a obtained by adding an organic solvent such as alcohol, liquid menthol or the like to a hydrous resin in which water is added to a polyvinyl alcohol acrylate copolymer is extruded from a conduit tube and applied to a net 8a arranged inside a shielding porous vinyl film 10a. Subsequently, by laying a sealing cover 10a made from a porous vinyl film thereon and holding down the top face of the net 8a, drop of the refrigerant 7a is prevented. A cooling head bandage 1a that is set that way is mounted on the head of a patient to cool the head for many hours by the latent heat absorbing action of the refrigerant 7a.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION A paste liquid obtained by adding a polyacrylic acid ester resin to an oil liquid obtained by adding mint to eucalyptus oil or lapender oil as a known dry refrigerant used for emergency medical care is applied to a non-woven cloth surface. However, a material obtained by laminating release paper on the surface was used, but only the latent heat absorbing action of this organic solvent alone is close to room temperature, so it works at a temperature, and the resin added when this solvent evaporates hardens. For those that did not withstand long-term use, a water-containing gel-like paste was prepared by adding water to a polyvinyl alcohol acrylate copolymer resin, and a mixed solvent such as alcohol, peppermint, xylene, and limonene was added to this paste. It uses a refrigerant that has been added and dispersed, so it can be used for a long time, and can be put into a freezer and used at a temperature below freezing. Retirement can be. Since it can be cooled indirectly by sealing or coating it in a porous plastic bag, there is an advantage that the temperature of the refrigerant can be freely selected, so it is suitable for emergency medical use as a portable for travel, and this refrigerant is a water-containing paste. Therefore, since replenishment use is possible, the use of regeneration can be endured, and the strength of the refrigerant can be adjusted according to the condition of the patient.
Also, because it can be combined with a small thermo-element piece,
Refrigerant attached to clothing of outdoor workers such as railway workers, electric wire workers and shipbuilding workers can be used for cooling. In addition, a bandage piece with calcium and aluminum foil stuck to neuralgia, leg pain and stiffness, and a piece of this refrigerant bag stuck to one side with pressure-sensitive adhesive are fixed to the supporter to stop pain while cooling the inflamed area. It is also used to prevent car drivers from falling asleep.

2. Description of the Related Art As described above, a known dry-type refrigerant is obtained by mixing mint with an organic solvent such as lavender oil or eucalyptus oil, and mixing and dissolving a polyacrylic acid ester resin into a paste. Use the body temperature by applying it to a cloth, stacking release paper on it, fitting it into a sealed bag, sealing it, opening it for regular use, removing the release paper, and attaching the paste surface to the skin. In addition, the organic solvent used for cooling an emergency patient by the latent heat absorption effect when evaporating the organic solvent has been used. This is very convenient for emergency medical use because it is unnecessary to use it after putting it in a freezer and cooling it, unlike the known ice non,
Since the base of this paste is a polyacrylate resin, the paste is hardened by evaporation of the solvent of the paste mixed and dissolved, and the paste becomes airtight, so that the amount of evaporation of the solvent is limited and the amount of evaporation gradually decreases. There was a drawback that the initial coolness was lost and the cooling effect was halved and reduced drastically. In addition, a refrigerant such as ice non has been known, which is obtained by sealing a hydrated polyvinyl alcohol paste in a polyvinyl resin bag. When this was used, it was placed in a freezer for 6 to 10 hours to cool it, which was inconvenient for emergency medical use.

The present invention further expands the capacity of the latent heat absorbing action of the refrigerant by evaporation of the organic solvent by the conventional dry method, and is necessary for rapid cooling of a patient whose body temperature is 38 ° C. or more. It will be developed as a refrigerant.

Means for Solving the Problems A hydrogel resin is produced,
This is used as a paste, and a mixture of alcohol, peppermint, limonene, and pinene xylene is mixed and dispersed, and the paste is applied as it is to the affected area, sealed in a porous plastic bag, or applied on a porous vinyl belt. We developed a refrigerant that can be used for a long time by increasing the latent heat absorption capacity. A known dry refrigerant is mixed with eucalyptus oil and lavender oil, and a mixed organic solvent obtained by dissolving mint is mixed and kneaded with polyacrylate resin resin to form a paste, which is evenly applied to one surface of a non-woven fabric. The paste is attached to the front of the head, and the organic solvent mixed in the paste evaporates spontaneously according to the body temperature. In order to remedy the problem that water drops rapidly after 1 hour, a water-containing gelled resin is made by adding water to a polyvinyl acrylate resin, and a mixed liquid of alcohol limonene pinene xylene mint as a mixed organic solvent is added and dispersed. Apply the hydrated gel-like resin to the porous vinyl film strip,
Alternatively, it is sealed in a porous vinyl film bag and brought into contact with the diseased part as a refrigerant, making a refrigerant that can be reused and continuously used by utilizing the latent heat absorption effect by co-evaporation of the hydrogel resin itself and the mixed organic solvent. It is something to do.

The conventional dry refrigerant is a mixture of eucalyptus oil, lavender oil and mint, mixed with a polyacrylate resin, dissolved and processed into a paste, and applied to a non-woven cloth. When this paste is stuck on the groin of the head, when the body temperature rises to 38 ° C, the organic oil solution and mint in this paste evaporate through the porous surface of the non-woven cloth due to the rise in body temperature, and the latent heat By absorption the chicks cool and feel cool. The surface temperature of the non-woven fabric at that time is almost the same as room temperature when the room temperature is 30 ° C. There is a difference of about 1 ° C between the string and the paste, but the surface temperature of the string is substantially 3 ° C. Only declines. Therefore, when the body temperature reaches 38 ° C. or higher, a great effect cannot be obtained by this dry method. However, as in the present method, a water-based resin of a polyvinyl alcohol acrylate copolymer resin was mainly used, and an organic solvent liquid obtained by mixing and dissolving alcohol, peppermint, xylene, lemonon, limonene, pinene, etc. was added and dispersed. When the hydrated gelled resin is soaked at body temperature, the organic solvent evaporates in proportion to this, but the amount of evaporation is directly related to cooling the hydrated gelled resin and consuming it to body temperature. It is related to the amount lost by air convection. And the amount of the water-containing liquid evaporating separately is included, but in the air the latent heat absorption holds about 20 times the capacity as compared with the known one with the same area,
There is an advantage that coolness is not lost until the water evaporates. However, when the hydrated gelled refrigerant is applied to a porous plastic bag or a vinyl belt, the amount of evaporation is limited, so that the cooling time is further extended. And since the dry film which arises when directly apply | coating to a head hardly adheres, it is sanitary. If the refrigerant applied to the porous vinyl strip evaporates the water, if the refrigerant paste in the conduit tube is additionally applied, the time is continuously used, and the refrigerant is 5 times longer than that of a known organic solvent bandage. It has the advantage of being used for a fraction of the price. However, in this method, in order to rapidly cool a patient having a body temperature of 38 ° C. or higher, the porous vinyl band is fitted in a bag, sealed and cooled in a refrigerator to reach 0 to 10 ° C. If you use after lowering,
It is also used because it helps to rapidly lower body temperature. Since the surface of this porous plastic bag is made of porous vinyl resin, when drying it to reduce its capacity as a refrigerant, immersing this refrigerant bag in a water tank allows water to penetrate into the bag from the outside. It can be reused after being corrected to a hydrogel resin, and the organic solvent of mint, limonene, pinene, and xylene solution dissolved in alcohol is applied to the surface of this porous plastic bag with a brush and enters the bag through the porous surface Playback is possible from. If the temperature of the present refrigerant is lowered to -5 ° C to 0 ° C without placing it in a freezer, the latent heat absorption by mixing known lavender oil, eucalyptus oil, and peppermint for emergency treatment of a patient with a fever of a body temperature of 38 ° C or higher is performed. It also has the ability to rapidly lower body temperature. However, in reality, it is not possible to put it in the freezer while traveling or on a business trip, so in this case, put water in a refrigerant bag in an anhydrous state even with urea powder, ammonium nitrate, ammonium sulfate, sodium chloride and calcium chloride However, since this chilling agent uses the chilling action by absorbing heat of dissolution, the polyvinyl alcohol acrylate copolymer resin naturally contains one of these salts as a dry powder. There is a need. If two or more types are added, heat may be generated, and cooling may not be performed if each salt unilaterally absorbs water.Therefore, it is necessary to sort the salt for long-term storage, but nitrate is the most suitable for temperature. Although reduced, urea is stable. However, if a salt is actually added to the polyvinyl alcohol acrylate copolymer resin, the gel is lost and the cooling cannot be kept for a long time, so the one in which sufficient alcohol, limonene, pinene, xylene, and mint are dissolved first. Addition to the gel-like liquid mixed with water, stirring, and adding the salt powder, the liquefaction of the alcohol is easily prevented by the convergence of alcohol. However, in order to obtain a safe gel, a paste in which a mixture of a hydrogel resin and an alcohol is put into a porous vinyl film bag and dispersed is fitted and sealed. It is safer to use a porous vinyl film bag immersed and cooled in an aqueous solution cooled to -7 ° C by adding water to a salt urea salt urea mug. The time of immersion in the cold part is preferably about 20 minutes. The porous vinyl film bag containing the hydrogel resin and the organic alcohol mixed solvent is used to reduce the body temperature of 38 ° C. or more when the room temperature is 30 ° C. like a known resin paste containing lavender, eucalyptus, and mint. Although there is a problem to squeeze, it is needless to say that the present invention can obtain better results for emergency medical care by reducing the body temperature by reducing the temperature of the porous plastic bag to 0 to 10 ° C. Furthermore, when the hydrous gelled resin is mixed with a volatile organic solvent, the latent heat action becomes extremely high, and the volatilization rate of the volatile solvent is delayed by the gelled resin, and the evaporation of the water in the gelled resin is quickly performed by a synergistic effect. More effective use becomes possible. Also, as a dry method, laminated paper of disposable diapers is made into a flat sheet or alcohol,
One piece of this paper diaper impregnated with pinene, limonene, xylene, and mint liquid is sealed, and when used, it is immersed in water for 20 minutes to gel the contents and attached to a bee-band for emergency medical care. Can be used for business.
When it is reused, it may be immersed in water again, but alcohol, limonene, pinene and mint liquid can be easily diffused by injecting it into the porous surface of the porous vinyl film bag.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to embodiments shown in the drawings.

FIG. 1 shows a production process diagram of a refrigerant in which a water-containing resin and an organic solvent are dispersed, shows a production process diagram, and introduces 4 kg of a polyvinyl acrylate copolymer resin fat from an hopper (2) into an autoclave (1). , 300 kg of water are introduced through a pipe (2 ′) and stirred by a stirrer (4). Then, a hydrous gelling resin is produced. This is extruded from a valve (5) through a pipe (5 '), the gelled resin is introduced from an upper hopper (9) of a mixer (8), and the mixture is stirred by rotating a stirrer (8'). 6) Alcohol and peppermint liquid were dropped from the hopper (7), limonene, binene and xylene liquid were injected and dispersed in the lower mixer (8) from the hopper (7) and put into an extruder and weigher (9) and placed on a turntable It is extruded and filled into the conduit tube (11), rotated, and the bottom surface of the conduit tube is heat-sealed and sealed by the sealer (12). This is conveyed by a conveyor (13) and a conduit tube is put in a basket. However, other cosmetic cream containers may be filled.

FIG. 2 is a side view of (A) of the refrigerant bag wrapped around the head, and both ends of the refrigerant bag (1a) are bent and connected and expandable with rubber bands (2a) sewn at the lower center. A porous vinyl film strip (3a) is sewn on a non-woven cloth strip (4a) on the upper central surface of this strip, and the surface in contact with the head (5a) is made of a porous vinyl film strip (3a). I have.
When a 1 mm thick refrigerant is applied to the porous vinyl film strip (A) having a width of 3 cm and a length of 12 cm, it takes about 30 minutes to dry. Therefore, when applying the hydrogel resin (7a) to the same, apply Repeat cooling for 30 minutes. When water is contained in the dried gelled resin, the performance can be exhibited as a refrigerant. This can be reused by impregnating the dried surface, usually coated four times, with water, but good results can be obtained by dispersing a small amount of mint, alcohol, limonene, pinene, and xylene.

FIG. 3 shows an oblique front view of the cooling headband (1a),
0a) is a shielding porous vinyl film, inside which a cooling tube (1a) is used for the conduit tube (6).
First, the cap (6'a) of (a) is removed, and the gel-like refrigerant (7a) is extruded and pushed onto the net (8a) on the porous vinyl film, and the upper surface thereof is pressed with the seal cover (10a). The seal cover (10a) for preventing the fall of (7a) is also made of a porous vinyl film. To explain the mechanism of operation, the hydrogel resin paste contained in the mesh is fitted to the head, and when the porous vinyl film (A) in contact with the head heat is heated, the hydrogel resin is heated. When heated, the dispersed alcohol-mixed refrigerant first evaporates, and this evaporates together with the water in the hydrogel resin to perform a latent heat absorbing action. Then, the hydrogel resin gradually dries.

FIG. 4 is an oblique front view in which a refrigerant is bound to a head-fitting band (A), and a non-woven fabric band (1b) is sewn and stacked inside a porous vinyl film band (2b). A band, with a cooling bag (3b) on the front and strings (4b) (4'b) at both ends
Bonded at (4 "b) (4 '" b), the cooling bag is made of a porous plastic bag and is directly adhered to the head. And the support helicopter (6b) (6'b)
Support the refrigerant bags (3b) and (3′b). Elastic rubber bands (5b) are sewn to the cooling bags (3b) and (1'b) on the back of the head at both ends of the stacking band of the cooling bags (3b) and (1b) at the rear. ing. This refrigerant bag (3
b) (3'b) is a detachable strap (4b) (4'b)
(4 "b) Freely performed by (4 '" b), placed in a freezer, cooled and cooled to 0-5 ° C, and placed in front of the cooling stack (3b) (3'b) Attach and attach.

FIG. 5 is an enlarged front view of the cooling bags (3b) and (3'b). Buttons (8b), (8'b) and (8 "b) are provided at upper and lower ends of the cooling bags (3b) and (3'b). ) (8 '"b) to fix to the cooling bag (3b) (3'b) cooling zone.

FIG. 6 is an oblique front view of a supporter incorporating a rubber band, and velcro binding pieces at both ends are sewn inside an elastic rubber supporter (1c), and a porous vinyl cooling bag (2c) is attached to the bag. Velcro binding pieces (4c) and (4'c) are sewn to both ends of the cooling bag (2c) and attached to the inside of the supporter (1c) with the Velcro binding pieces (4c) and (4'c).
When using a porous plastic bag (3c) (3'c),
Alcohol, peppermint, limonene, binnen, depending on body temperature
Part of xylene is heated and evaporated to cool the hydrogel resin (5c), and the hydrogel resin (5c) cools the body temperature.

FIG. 7 is a characteristic showing the relationship between the amount of evaporation and time.
(A) is a mixture of 5 g of eucalyptus oil, 1 g of lavender oil, 1 g of peppermint, 6 g of polyacrylate resin, and masticated into a paste.
It is a non-woven cloth having a thickness of 3 m / m and a thickness of 10 g applied thereto. In (B), 200 g of water is added to 3 g of polyvinyl alcohol acrylate copolymer to prepare a water-containing polyvinyl alcohol copolymer resin. A liquid obtained by mixing and dissolving 5 g of alcohol, 1 g of limonene, and 1 g of mint with 101.5 g of the hydrogel resin is used to prepare a refrigerant, and 10 g of the hydrogel gel resin is used.
(C) is a mixture of 10 g of alcohol, 2 g of limonene, 2 g of mint and 101.5 g of hydrogel resin,
A 0 g sample was used.

FIG. 8 shows a front view of the human body,

FIG. 4 shows a view in which the refrigerant bag (A) is fitted;

FIG. 6 is a view in which the supporter refrigerants (B) and (B ′) of FIG.

[Fig. 5] When installing the refrigerant bag, it is useful to prevent heat during work when installing it on the refrigerant clothing of electric wiring external construction workers, railway inspection construction workers, and shipbuilding outdoor workers, and it is also used in the hat. It is convenient.

FIG. 9 is a front view of a dry refrigerant bag, in which a polyvinyl acrylate resin powder is put in a dry state from an opening (4K) of a porous plastic bag (1k), and an opening (4k) for putting water.
On one side, a conical tube (4'k) is joined to the opening (4k), the conical tube (4'k) is compressed, and the narrow portion (Q) at the tip is bent to make a fold with an iron, When the rod is inserted into the opening, the bending valve (8k) in the narrow portion is processed so as to open vertically. Then, the dry powder (2k) of the water-containing resin is put through the opening (4k), and the valve (8k) is folded and closed. Next, the outer peripheral line (1′k) of the porous vinyl film bag (1k) is formed by stacking, and the protruding ears (6k) (6′k) at the center in the left and right directions are extended to form an elliptical shape. (9k) (9'k) is drilled and a string (7k)
(7'k) to penetrate and fix both ends.
The strings (7k) (7'k) are vertically pierced (9ak) (9 '
ak) and (9 '"ak) are drilled in advance so as to help horizontal fixation as a string perforation. This function is to push a rod tube into the opening (4k) and cut the fold (5k) of the on-off valve. After turning to the direction perpendicular to the opening, water liquid is poured from the hollow surface of the rod tube to make a hydrogel resin, and then alcohol, pinene, limonene, and organic acid solution are introduced into a porous plastic bag (1k). Then, the internal gel resin is dispersed and diffused by the rod tube, the rod tube is removed, the fold of the on-off valve is bent, and the conical tube (4k) is closed, so that no internal liquid flows out.
Grab (7'k) and attach it to the head tie. When appropriate, a porous vinyl film bag (3k) in contact with the string
Gives the body temperature to the hydrogel resin and the latent heat absorbing action starts. This was put in a freezer at 0 to −3 ° C., cooled with a weight of 1 kg of hydrated gelled resin for 24 hours,
When the temperature reaches 8 ° C., the latent heat absorption of the alcohol, peppermint, pinene, limonene and xylene liquids occurs, and the coolness is maintained for another 5 to 6 hours. Since this refrigerant cannot be fixed to the head with (1 kg), a refrigerant containing 200 to 500 g is generally used, but coolness for 6 to 10 hours is maintained. In this method, water is added at the time of use, but it is extremely lightweight and convenient for carrying. Also, the fermented starch absorbs when impregnated with an alcohol solution in advance, and is stored in a powdered state, so that the volatile organic solvent can be obtained in the form of an absorbed powder simply by adding water, which is convenient. Also, a gelled resin obtained by dispersing a volatile organic solvent solution in the hydrogel resin is fitted into a porous vinyl film bag and sealed, and then ammonium nitrate, ammonium sulfate, urea, and salt salts are used. When immersed in chiller water cooled by adding alcoholic water to salt car, etc., the porous vinyl film bag is rapidly cooled in a temperature range of 0 to -10 ° C, and the temperature is lowered to 0 to -10 ° C at room temperature of 30 ° C. Therefore, if the immersion time is about 20 minutes,
The bag temperature is 8 ° C, and the conventional organic solvent paste temperature is 30.
Because it gives coolness to the affected area at low temperature, it is 3 ° C.
It is more effective for patients with fever of 8 ° C or higher. This chilling agent is used as a kind, and the hydrogelated resin is mixed with the dried resin, and a solution in which alcohol, limonene, binene, and mint are dissolved and fermented saccharified starch are mixed. Therefore, the powdered product obtained by combining this with a dry resin is put in a porous vinyl film bag, sealed, and put into water at the time of use to cause gelation, and a water-containing gelled resin bag having a water temperature of room temperature of 30 ° C. It can be used down to about 8 ° C. Then, the gel-like refrigerant can be cooled by contacting the gel-like porous vinyl bag on the cooling surface of the small thermo-element piece cooled by the battery and allowing the heated surface to cool. Also, as a new use of paper sewn laminated paper, cut it into appropriate dimensions, attach it to a synthetic net or a porous vinyl film bag and a band, and use a solution in which alcohol, pinene, limonene, and mint are dissolved in advance. When the part is impregnated and sealed, and subsequently impregnated with water, it can be used as a similar refrigerant and used as a dry method.
This alcohol mixture can be used by adding a powder absorbed into fermented starch.

From the above results, it can be seen that the latent heat absorption is proportional to the amount of evaporation of the organic solvent, and the latent heat absorption of the present invention is increased by about 60%. In addition, since the paste of the present invention can be continuously extruded and used more freely than the conchid tube, it can withstand a long cooling time. In the case of a porous plastic bag in which the refrigerant of hydrogel resin is sealed, only the bag is cooled in a freezer to lower the temperature to 0 to -5 ° C. In the case of emergency cooling, a well-known one can exert an immediate effect against the room temperature of 25 to 30 ° C. It can be recycled because it can be immersed through the porous surface of a high quality plastic film bag, and is highly economical.

[Brief description of the drawings]

Fig. 1 Process diagram of refrigerant production

FIG. 2 is a side view of a refrigerant bag wound around the head.

FIG. 3 is an oblique front view of a cooling headband.

FIG. 4 is an oblique front view of a belt to which a head fitting bag is attached.

FIG. 5 is an enlarged front view of the head cooling bag.

FIG. 6 is an oblique front view of the supporter.

FIG. 7: Characteristics of refrigerant

FIG. 8 is a front view of a human body.

FIG. 9 is a front view of a dry refrigerant bag.

Claims (1)

[Claims] Water is added to the polyvinyl alcohol acrylate copolymer resin to form a water-containing resin, and a limonene and pinene xylene peppermint solution separately dissolved in alcohol is formed, and this liquid is dispersed in a water-containing mixed resin paste to form a water-containing resin. Evaporative cooling characterized by applying the same refrigerant applied on a porous vinyl film strap and sealed in the same film bag to the stem of an emergency heat-generating patient and performing a latent heat absorbing action by its body temperature. Medium.