WO2005013869A1 - 発熱体 - Google Patents
発熱体 Download PDFInfo
- Publication number
- WO2005013869A1 WO2005013869A1 PCT/JP2004/005836 JP2004005836W WO2005013869A1 WO 2005013869 A1 WO2005013869 A1 WO 2005013869A1 JP 2004005836 W JP2004005836 W JP 2004005836W WO 2005013869 A1 WO2005013869 A1 WO 2005013869A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heating element
- heat
- adhesive
- generating
- hydrophilic gel
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/02—Compresses or poultices for effecting heating or cooling
- A61F7/03—Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction
- A61F7/032—Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction using oxygen from the air, e.g. pocket-stoves
- A61F7/034—Flameless
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/08—Warming pads, pans or mats; Hot-water bottles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/02—Compresses or poultices for effecting heating or cooling
- A61F7/03—Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24V—COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
- F24V30/00—Apparatus or devices using heat produced by exothermal chemical reactions other than combustion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/02—Compresses or poultices for effecting heating or cooling
- A61F2007/0225—Compresses or poultices for effecting heating or cooling connected to the body or a part thereof
- A61F2007/0226—Compresses or poultices for effecting heating or cooling connected to the body or a part thereof adhesive, self-sticking
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/02—Compresses or poultices for effecting heating or cooling
- A61F2007/0244—Compresses or poultices for effecting heating or cooling with layers
- A61F2007/026—Compresses or poultices for effecting heating or cooling with layers with a fluid absorbing layer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
Definitions
- the present invention provides a heat-generating composition which causes an exothermic reaction in the presence of air, from a heat-generating portion sealed in a gas-permeable container having a desired shape such as a bag or a sheet, and a hydrophilic polymer thickener. And a pressure-sensitive adhesive portion formed with a hydrous hydrophilic gel agent as a main component.
- a heating element is formed by enclosing a heating composition mainly composed of iron powder or the like that causes an exothermic reaction in the presence of air in a bag-like, sheet-like, or other air-permeable container. And an adhesive portion for sticking the heat generating portion to the skin.
- the adhesive portion is constituted by a non-aqueous adhesive.
- the adhesive portion constituted by the non-aqueous adhesive does not absorb moisture, so that when sweating occurs, bodily fluid such as sweat stays between the skin surface and the adhesive portion, and the heating element There is a problem that the adhesive strength of the resin is reduced and the film is easily peeled off.
- the adhesive force of the adhesive portion is strengthened to make it difficult to peel off from the skin, there is a problem that the adhesive portion pulls the body hair and the like when peeling off the heat generating body from the skin, causing a problem. At that time, there is also a problem that keratin on the skin surface is destroyed.
- an adhesive part of a heating element made of a hydrophilic adhesive is disclosed in, for example, Patent Documents 1 and 2 and the like.
- the heating element having the adhesive portion formed by the hydrophilic adhesive absorbs water such as sweat generated at the time of perspiration, so that the hair is not pulled even when the heating element is peeled off. None destroy the keratin.
- the pressure-sensitive adhesive portion is made of a water-containing hydrophilic gel composed of a hydrophilic pressure-sensitive adhesive, which is generally used in poultices, etc. Even if it is stored, the moisture in the gel inside the bag is on the side of the heat generating part with high hygroscopicity When the heating element was taken out of the bag, the adhesive strength of the adhesive portion was reduced, and there was a problem that the adhesive was peeled off even when attached to the skin.
- the water-containing hydrophilic gel agent gives a cool sensation at the time of sticking to the skin and for a while after sticking, so that there is a problem that it is difficult to use, especially in the cold winter season. .
- the above-mentioned cool feeling is reduced by configuring the adhesive portion of the heating element so as to reduce the moisture in the hydrous hydrophilic gel agent and increase the amount of the humectant.
- the adhesive part contained a large amount of a highly hygroscopic heat insulating material in the same manner as above, the moisture in the heating part was transferred to the adhesive part, and sufficient heat was generated. There was a problem that performance could not be obtained.
- Patent Document 1 Patent No. 1874082
- Patent Document 2 Japanese Patent No. 2744915
- the adhesive part can be composed mainly of a water-containing hydrophilic gel agent obtained from a hydrophilic polymer thickener, and the movement of water between the heat generating part and the adhesive part. It is an object of the present invention to provide a heating element having excellent heat generation performance with less heat generation.
- the inventors of the present invention have conducted intensive studies to achieve the above object, and as a result, placed a heat-generating composition that causes an exothermic reaction in the presence of air in a bag-shaped, sheet-shaped, or other air-permeable container.
- the heating element includes a heating section formed by encapsulation, and an adhesive section formed mainly of a hydrated hydrophilic gelling agent obtained from a hydrophilic polymer thickener.
- the temperature characteristics and sustainability of the exothermic composition that prevent the transfer of water from the exothermic composition to the hydrogel gel containing the adhesive part in the adhesive part It can be used effectively as a heating element for sticking to the skin that can effectively exert its functions such as time and has excellent usability that does not impair the functions of the hydrous hydrophilic gel, such as adhesive strength and shape retention. It was found that a heating element suitable for the above was obtained.
- the heating element of the present invention has been made based on the above findings, and as described in claim 1, a heating section formed by enclosing a heating composition that causes an exothermic reaction due to the presence of air in a gas-permeable container. And a hydrous hydrophilic gel agent obtained from a hydrophilic polymer thickener as a main component. And a difference in critical humidity between the heat-generating portion and the adhesive portion is set to 5% or less.
- the heating element according to claim 2 is characterized in that, in the heating element according to claim 1, an organic filler is added to the water-containing hydrophilic gel agent of the adhesive portion.
- a heating element according to a third aspect is the heating element according to the first aspect, wherein the adhesive portion is laminated on the heating portion and stored in an airtight storage bag.
- a heating element according to a fourth aspect is characterized in that, in the heating element according to the second aspect, the adhesive portion is laminated on the heat generating portion and stored in an airtight storage bag.
- a heating element according to a fifth aspect is the heating element according to any one of the first to fourth aspects, wherein the heating element is a heating element attached to the skin.
- FIG. 1 is an explanatory sectional view of a sample used for measuring critical humidity of a heat-generating composition.
- FIG. 2 is an explanatory sectional view of a sample used for measuring the critical humidity of a hydrous hydrophilic gel agent.
- FIG. 3 is a graph showing a critical humidity of the exothermic composition.
- FIG. 4 is a graph showing a critical humidity of a hydrous hydrophilic gel agent.
- FIG. 5 is an explanatory sectional view of a heat-generating composition container of a heat-generating body according to an embodiment of the present invention.
- FIG. 6 is an explanatory sectional view of a water-containing hydrophilic gel sheet of a heating element according to an embodiment of the present invention.
- FIG. 7 is an explanatory sectional view of a heating element according to one embodiment of the present invention.
- the difference between the critical humidity values of the heating section and the adhesive section is 5% or less.
- the critical humidity value of the heat generating portion or the adhesive portion refers to a state in which the moisture in the heat generating portion or the adhesive portion is in equilibrium without absorbing or releasing moisture at a certain relative humidity, and there is no movement of moisture. Refers to a value indicating the relative humidity at.
- substances have a hygroscopic property and a desorbing property.
- the relative humidity of 75% is the critical humidity value of salt. Therefore, in an atmosphere exceeding the critical humidity value, the salt absorbs moisture (moisture absorption), and when it is less than the critical humidity value, the moisture attached around the salt crystals is released into the air (humidification). There is.
- FIG. 1 is a cross-sectional view of Sample 1 of a heat generating portion in which a heat generating composition is accommodated in a bag-shaped air-permeable container.
- the heat-generating part sample 1 was formed by laminating the air-permeable sheet 2 and the air-impermeable sheet 3 and sealing the peripheral portion so as to form a bag to form a gas-permeable container.
- the exothermic composition 4 adjusted to the desired composition from the part (except for the iron powder that has little moisture absorption and desorption properties in order to avoid the effect of weight change due to iron oxidation reaction), It is manufactured by heat sealing the edge.
- FIG. 2 is a cross-sectional view of a sample 5 of an adhesive portion made of a water-containing hydrophilic gel formed from a hydrophilic polymer thickener.
- Sample 5 of the adhesive portion was prepared by uniformly applying a water-containing hydrophilic gel agent 7 to a spunlaced nonwoven fabric 6 lined with a polyethylene film, covering with a release film 8 and forming a sheet. It is made by punching out the same size.
- each of Sample 1 and Sample 5 is placed in a thermo-hygrostat that can be set to a temperature of 30 ° C. and an arbitrary relative humidity H.
- Samples 1 and 5 are left for 24 hours with the air-permeable sheet 2 side of sample 1 facing upward and the hydrous hydrophilic gel agent 7 side of sample 5 facing upward.
- the relative humidity H is changed by 10% in a range of 30% to 100%, and Bl and B5 at each relative humidity are measured.
- the horizontal axis shows the relative humidity H (%) at a temperature of 30 ° C, and the weight change (B1-A1) at the relative humidity H (%) is plotted on the vertical axis to complete the graph shown in Figure 3. I do. Similarly, The horizontal axis shows the relative humidity H (%) at a temperature of 30 ° C, and the weight change (B5-A5) at the relative humidity H (%) is plotted on the vertical axis to complete the graph shown in Figure 4.
- the critical humidity values of the heating portion and the adhesive portion in the heating element of the present invention can be measured as CP1 and CP5, respectively.
- the difference between the critical humidity values of the heating section and the adhesive section in the heating element of the present invention refers to the absolute value of (CP1-CP5). This value must be 5% or less, preferably 2% or less. If it exceeds 5%, the movement of moisture between the heat-generating part and the adhesive part becomes too large, so that the function of the heat-generating composition of the heat-generating part and the function of the water-containing hydrophilic gel agent of the adhesive part are reduced. This is because it is not preferable to use as a wearing type heating element.
- the critical humidity value of the heat generating portion can be obtained as desired by adjusting the composition of the moisture absorbing and / or moisture releasing material in the heat generating composition or selecting the material of the gas permeable container.
- a desired critical humidity value can be obtained by adjusting the composition of the moisture absorbing and / or moisture releasing material constituting the adhesive portion. The method is not particularly limited.
- the heat-generating composition constituting the heat-generating portion is not particularly limited as long as it is a composition of a known heat-generating composition generally called a chemical body warmer.
- Activated carbon that adjusts pH value and catalyzes inorganic chlorides and metal powders by oxidizing inorganic powders and metal powders as the main components, and water as the main components. It is composed of a water retention agent to prevent sticking.
- the inorganic chloride functions to destroy the oxide film on the surface of the metal powder of the heat-generating composition and continuously promote the oxidation reaction. It is blended in a ratio of parts by mass.
- the proportion of the inorganic chloride in the heat-generating composition is related to the critical humidity value of the heat-generating composition, the inorganic chloride in the heat-generating composition is adjusted to adjust the critical humidity value of the heat-generating composition. Can be adjusted.
- the inorganic chloride for example, sodium chloride, potassium salt, magnesium chloride, calcium chloride, potassium sulfate, magnesium sulfate, sodium sulfate and the like can be used. It is preferable to select deliquescent sodium chloride, magnesium chloride, and calcium chloride and to add them to the exothermic composition because it is particularly easy.
- metal powder iron powder, reduced iron powder, electrolytic iron powder and the like can be used.
- activated carbon coconut shell charcoal, wood powder charcoal, peat charcoal and the like can be used.
- water retention agent vermiculite, perlite, cristobalite, silica gel, wood flour, water-absorbing polymer and the like can be used.
- the heat-generating composition is contained in an air-permeable container.
- the air-permeable container is composed of, for example, a flat air-permeable packaging material and a sheet-like non-air-permeable packaging material.
- the flat wrapping material having air permeability is composed of a base material and a coating material, at least a part of which has air permeability, and the heat-generating composition is provided even if a water-containing hydrophilic gel agent layer is provided. There is no particular limitation as long as a desired temperature can be obtained by generating heat and the internal heat generating composition does not leak when the heat generating composition is stored.
- the hydrated hydrophilic gel agent is, for example, a hydrophilic polymer thickener such as polyacrylic acid, polyacrylate, or a cellulose derivative. , A curing agent, water, a humectant, and the like.
- examples of the humectant include polyhydric alcohols and saccharides.
- polyhydric alcohols include ethylene glycol, diethylene glycol, triethylene glycol, propylene ethylene glycol, dipropylene glycol, and butylene glycol.
- saccharide include xylitol, sonorebitone, maltitol, starch sugar and the like.
- the critical humidity value of the hydrated hydrophilic gel agent is adjusted by adjusting the blending of the humectant and water. You can do it.
- the humectant is usually blended in a proportion of not more than 60 parts by mass per 100 parts by mass of the hydrated hydrophilic gel agent. If the amount of the humectant exceeds 60 parts by mass, the humectant tends to peel off when applied to the skin. Further, it is preferable that 40 to 60 parts by mass of the humectant be mixed with 100 parts by mass of the hydrated hydrophilic gel agent. If the amount of the humectant is less than 40 parts by mass, the sense of coolness becomes large because the amount of water increases.
- the water-containing hydrophilic gel agent of the adhesive portion contains an organic filler.
- the amount of the organic filler added is preferably about 110 to 30 parts by mass with respect to 100 parts by mass of the hydrogel gel. Thereby, the cool feeling generated when the heating element is attached to the skin can be further reduced.
- organic filler examples include crystalline cellulose, wood flour, dry plant powder, pulp, regenerated cellulose, and a piece of fiber.
- the polyacrylic acid is not particularly limited in its molecular weight and linear or branched shape.
- polyacrylate examples include sodium polyacrylate, potassium polyacrylate, monoethanolamine polyacrylate, diethanolamine polyacrylate, triethanolamine polyacrylate, and polyacrylic acid. Ammonium salt and the like.
- cellulose derivative examples include carboxymethylcellulose, carboxymethinoresenolerose sodium, hydroxymethinoresenolerose, hydroxyethinoresenolerose, hydroxypropinoresenorelose, and hydroxypropyl pinoremethinoles. Senorelose, hydroxypropinoleetinoresenorelose, methinoresenorelose, etinoresenorelose, etinolehydroxymethylcellulose, cationized cellulose and the like.
- a water-soluble polymer compound sodium alginate Propylene glycol alginate, sodium starch glycolate, sodium starch phosphate, polybiol alcohol, polybierpyrrolidone, polyvinyl bilidone polyethylene oxide, polyvinyl methyl ether, carboxyvinyl polymer, polyacrylanolamide, polyethylene glycol, polyethylene
- oxide guar gum, gum arabic, gum tragacanth, karaya gum, carrageenan, agar, xanthan gum, gellan gum, curdlan, punorelane, pectin, dextrin, chiten, chitosan, chitosamine, gelatin, etc.
- the curing agent crosslinks with polyacrylic acid, polyacrylate, cellulose derivative and the like.
- the divalent metal compound includes calcium hydroxide, calcium carbonate, calcium sulfate, calcium nitrate, calcium chloride, calcium acetate, calcium oxide, calcium phosphate, magnesium hydroxide, magnesium carbonate, magnesium sulfate, magnesium nitrate, and chloride.
- examples include magnesium, magnesium silicate, magnesium oxide, magnesium aluminate hydroxide, magnesium aluminate metasilicate, magnesium oleolemate, and synthetic hydrotalcite.
- the trivalent metal compounds include potassium alum, ammonium alum, iron alum, aluminum hydroxide, aluminum sulfate, aluminum chloride, aluminum glycinate aluminum acetate, aluminum oxide, and aluminum silicate. And aluminum metasilicate.
- the components usually used in poultices, cataplasms, cosmetic gel sheets, and the like may be appropriately added to the hydrated hydrophilic gel as long as the effects of the present invention are not impaired.
- Such components include, for example, inorganic powders, transdermally absorbing agents, antioxidants, preservatives, fragrances, pigments, coloring pigments, emulsifiers, antiallergic agents, cosmetic ingredients, and the like.
- the adhesive portion is laminated on the heat generating portion and stored in an airtight storage bag. Since there is no movement of moisture between the adhesive part and the heat-generating part until it is manufactured and used in an airtight storage bag, the heat generation performance as a heating element and the adhesiveness of the adhesive part deteriorate. Can be eliminated.
- a material constituting the airtight storage bag a material having perfect airtightness is used. More specifically, it is not limited, and can be made of aluminum or PET materials.
- the critical humidity value of each exothermic composition of Formulation 1 to Formulation 3 was 82%, 90%, and 95%, respectively, as measured by the method described with reference to FIGS. 1 and 3 above.
- the air-permeable sheet 2 used for the measurement was a porous film (Nitto Lifetech Co., Ltd. Breslon) made by laminating a microporous polyethylene sheet onto a nylon spunbond nonwoven fabric. Bonded nonwoven fabric (made by Asahi Kasei) with laminated polyethylene film is used.
- a porous film (Nitto Lifetech Co., Ltd.) was prepared by weighing about 10 g of each exothermic composition 10 of Formulation 1 and Formulation 3 and laminating a microporous polyethylene sheet on a nylon spunbond nonwoven fabric.
- a breathable sheet 2 that is also strong and a non-permeable sheet 3 made by laminating a polyethylene film on a nylon spunbond nonwoven fabric (made by Asahi Kasei) are punched into a rectangular shape of 7 cm x 10 cm, and these are overlaid to form a bag.
- the periphery was sealed to form a gas permeable container 9
- each heat-generating composition 10 was filled in, and the opening was sealed to produce a heat-generating portion 9.
- each component shown in Table 2 was mixed and stirred with a mixing mixer by a conventional method to obtain a water-containing hydrophilic material.
- the gel was prepared.
- the critical humidity values of Formulation 4 and Formulation 6 of the water-containing hydrophilic gel agent were 96%, 91%, and 80%, respectively, according to the method described with reference to FIGS. 2 and 4 above.
- a spunlace nonwoven fabric 6 lined with a polyethylene film a spunlace nonwoven fabric made of rayon fiber (having a basis weight of 55 g / m 2 ) lined with a polyethylene film was used.
- the exothermic part 9 is composed of the exothermic composition of formula 2 (critical humidity value 90%), and the adhesive part 11 is composed of the hydrated hydrophilic gel agent of formula 5 (critical humidity value 91%). 11, each weight After the measurement of, the heat generating element 13 was sealed in the airtight storage bag 12 in the same manner as in Example 1.
- the exothermic part 9 is composed of the exothermic composition of formula 3 (critical humidity value 95%), and the adhesive part 11 is composed of the hydrous hydrophilic gel agent of formula 5 (critical humidity value 96%). After measuring the respective weights of No. 11, they were sealed in a hermetic storage bag 12 as a heating element 13 in the same manner as in Example 1.
- the exothermic part 9 is composed of the exothermic composition of Formula 1 (critical humidity value 82%), and the adhesive part 11 is composed of the hydrous hydrophilic gel agent of Formula 5 (critical humidity value 91%). After measuring the respective weights of No. 11, they were sealed in a hermetic storage bag 12 as a heating element 13 in the same manner as in Example 1.
- the exothermic part 9 is composed of the exothermic composition of formula 2 (critical humidity value 90%), and the adhesive part 11 is composed of the hydrous hydrophilic gel agent of formula 6 (critical humidity value 80%). After measuring the respective weights of No. 11, they were sealed in a hermetic storage bag 12 as a heating element 13 in the same manner as in Example 1.
- the exothermic part 9 was composed of the exothermic composition of Formula 2 (critical humidity value 90%), and the adhesive part was composed of the water-containing hydrophilic gel agent of Formula 4 (critical humidity value 96%). After measuring the weight of each sample, it was sealed as a heating element 13 in the airtight storage bag 12 in the same manner as in Example 1.Example 1 Example 3 and Comparative Example 1 In the airtight storage bag 12 of Comparative Example 3 After leaving the heating element 13 enclosed in a thermostatic chamber set at a temperature of 40 ° C and a humidity of 50% for 30 days, remove the heating element 13 from the airtight storage bag 12 The weight of each of the 11 samples was measured to determine the amount of change in water content. The results are shown in Table 3.
- the rise characteristics were defined as “good” if the time from when the heat-generating element started generating heat to a temperature of 40 ° C or higher was “good” and the time until the temperature reached 40 ° C. However, a relatively long one was evaluated as “bad”. Regarding the temperature duration, 4
- the adhesive part was evaluated by attaching the heating element to a flat back on the back of the heating element and observing whether or not the adhesive part had peeled off after 6 hours, and whether or not the adhesive part remained on the skin after peeling. did.
- the hydrous hydrophilic gel agent which mainly comprises an adhesion part. Therefore, the heat generation characteristics such as the rising characteristics at the time of heat generation, the maximum temperature and the appropriate temperature duration are excellent.
- the water in the water-containing hydrophilic gel agent in the adhesive part which contributes to gel formation and adhesive strength, does not move to the heat-generating composition in the heat-generating part, the shape retention property in the adhesive part, adhesive strength, and attachment to the skin It can be maintained without impairing the feeling.
- the proportion of the humectant in the adhesive portion is high, the amount of water in the adhesive portion can be reduced, and the conventional heat generation can be performed at the time of attaching the heating element and for a while after the start of the attachment. In the body, the cool feeling that may have been given to the body can be reduced.
- the cool feeling can be further reduced.
- the heating characteristics and adhesive performance of the heating element do not deteriorate from the time of manufacture to the time of consumer use.
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Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04730633A EP1566156B1 (en) | 2003-08-11 | 2004-04-30 | Heating element |
JP2005512893A JP4445469B2 (ja) | 2003-08-11 | 2004-04-30 | 発熱体 |
CA002497874A CA2497874A1 (en) | 2003-08-11 | 2004-04-30 | Heat generating body |
DE602004016946T DE602004016946D1 (de) | 2003-08-11 | 2004-04-30 | Heizelement |
US10/524,211 US20050244629A1 (en) | 2003-08-11 | 2004-04-30 | Heating element |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-291335 | 2003-08-11 | ||
JP2003291335 | 2003-08-11 |
Publications (1)
Publication Number | Publication Date |
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WO2005013869A1 true WO2005013869A1 (ja) | 2005-02-17 |
Family
ID=34131645
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/005836 WO2005013869A1 (ja) | 2003-08-11 | 2004-04-30 | 発熱体 |
Country Status (8)
Country | Link |
---|---|
US (1) | US20050244629A1 (ja) |
EP (1) | EP1566156B1 (ja) |
JP (1) | JP4445469B2 (ja) |
KR (1) | KR20060059854A (ja) |
CN (1) | CN100404010C (ja) |
CA (1) | CA2497874A1 (ja) |
DE (1) | DE602004016946D1 (ja) |
WO (1) | WO2005013869A1 (ja) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
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US20070277806A1 (en) * | 2004-07-14 | 2007-12-06 | Toshihiro Dodo | Heat Generating Pad And Method Of Use Of The Same |
US7763061B2 (en) | 2004-12-23 | 2010-07-27 | Kimberly-Clark Worldwide, Inc. | Thermal coverings |
US8425578B2 (en) | 2006-08-31 | 2013-04-23 | Kimberly-Clark Worldwide, Inc. | Warming product |
US8187697B2 (en) | 2007-04-30 | 2012-05-29 | Kimberly-Clark Worldwide, Inc. | Cooling product |
US20110307040A1 (en) * | 2010-06-14 | 2011-12-15 | Samuel Brian Peterson | Therapeutic heat-transfer pack |
ES2699739T3 (es) | 2010-09-10 | 2019-02-12 | Medivance Inc | Compresa médica de enfriamiento |
US9622907B2 (en) | 2010-09-10 | 2017-04-18 | Medivance Incorporated | Cooling medical pad |
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- 2004-04-30 CN CNB2004800007414A patent/CN100404010C/zh not_active Expired - Fee Related
- 2004-04-30 CA CA002497874A patent/CA2497874A1/en not_active Abandoned
- 2004-04-30 DE DE602004016946T patent/DE602004016946D1/de not_active Expired - Fee Related
- 2004-04-30 WO PCT/JP2004/005836 patent/WO2005013869A1/ja active Application Filing
- 2004-04-30 EP EP04730633A patent/EP1566156B1/en not_active Expired - Fee Related
- 2004-04-30 JP JP2005512893A patent/JP4445469B2/ja not_active Expired - Fee Related
- 2004-04-30 KR KR1020057005492A patent/KR20060059854A/ko not_active Application Discontinuation
- 2004-04-30 US US10/524,211 patent/US20050244629A1/en not_active Abandoned
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Also Published As
Publication number | Publication date |
---|---|
CN100404010C (zh) | 2008-07-23 |
EP1566156A4 (en) | 2006-01-04 |
EP1566156B1 (en) | 2008-10-08 |
US20050244629A1 (en) | 2005-11-03 |
EP1566156A1 (en) | 2005-08-24 |
JPWO2005013869A1 (ja) | 2007-08-23 |
JP4445469B2 (ja) | 2010-04-07 |
CA2497874A1 (en) | 2005-02-11 |
DE602004016946D1 (de) | 2008-11-20 |
CN1700896A (zh) | 2005-11-23 |
KR20060059854A (ko) | 2006-06-02 |
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