JPH0232192A - Simple cooling agent - Google Patents
Simple cooling agentInfo
- Publication number
- JPH0232192A JPH0232192A JP63179255A JP17925588A JPH0232192A JP H0232192 A JPH0232192 A JP H0232192A JP 63179255 A JP63179255 A JP 63179255A JP 17925588 A JP17925588 A JP 17925588A JP H0232192 A JPH0232192 A JP H0232192A
- Authority
- JP
- Japan
- Prior art keywords
- water
- dissolved
- absorbing
- absorbing polymer
- aqueous solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002826 coolant Substances 0.000 title claims abstract description 14
- 239000000126 substance Substances 0.000 claims abstract description 28
- 229920000642 polymer Polymers 0.000 claims abstract description 26
- 239000007864 aqueous solution Substances 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 7
- 150000003839 salts Chemical class 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 22
- 238000001816 cooling Methods 0.000 abstract description 12
- 229910017053 inorganic salt Inorganic materials 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 10
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 abstract description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract description 5
- 239000004202 carbamide Substances 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 5
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract description 3
- 229920001059 synthetic polymer Polymers 0.000 abstract description 2
- 229920002472 Starch Polymers 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- 239000001913 cellulose Substances 0.000 abstract 1
- HFCSXCKLARAMIQ-UHFFFAOYSA-L disodium;sulfate;hydrate Chemical compound O.[Na+].[Na+].[O-]S([O-])(=O)=O HFCSXCKLARAMIQ-UHFFFAOYSA-L 0.000 abstract 1
- 239000008107 starch Substances 0.000 abstract 1
- 235000019698 starch Nutrition 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 4
- 238000005192 partition Methods 0.000 description 3
- RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 239000004317 sodium nitrate Substances 0.000 description 2
- 235000010344 sodium nitrate Nutrition 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- QHFQAJHNDKBRBO-UHFFFAOYSA-L calcium chloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].[Cl-].[Ca+2] QHFQAJHNDKBRBO-UHFFFAOYSA-L 0.000 description 1
- 229920003174 cellulose-based polymer Polymers 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 229920003179 starch-based polymer Polymers 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、食品や飲料の冷却ないし体温の調節等に利用
するための、溶解するとき熱を吸収する物質を用いた簡
易冷却剤に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a simple coolant using a substance that absorbs heat when dissolved, for use in cooling foods and beverages, regulating body temperature, and the like.
［従来の技術］
従来から１行楽等の際に食品や飲料等を冷却保存したり
、家庭や病院において発熱した病人の頭部を冷やしたり
、あるいは夏期に釣りやスポーツ見物又は工事現場など
で暑さを抑えたりするために、簡易な冷却剤が使用され
ている。[Prior art] Traditionally, it has been used to cool and preserve food and drinks during a vacation, to cool the head of a sick person with a fever at home or in a hospital, or to cool the head of a patient with a fever while fishing, attending sports, or at a construction site in the summer. A simple coolant is used to reduce the heat.
この簡易冷却剤は、溶解するとき熱を吸収する硝酸ナト
リウムや硝酸アンモニウム等の溶解時吸熱物質を用い、
この溶解時吸熱物質を水と混合させた時の溶解吸熱反応
を利用するものである。This simple coolant uses endothermic substances such as sodium nitrate and ammonium nitrate that absorb heat when melting.
This method utilizes the dissolution endothermic reaction when this endothermic substance is mixed with water.
例えば、装入りの簡易冷却剤が米国のＪｏｈｎｓｏｎ＆
Ｊｏｈｎｇａｎ社等から医療用ないし行楽用として既
に市販されている。これ等の簡易冷却剤は、厚く強固な
非透水性の外袋内に、溶解時吸熱物質の粉末と水とをプ
ラスチックフィルム等の非透水性の内袋又は隔壁で分離
して封入したものであり、使用に際して内袋又は隔壁を
破ることによって水と溶解時吸熱物質が混合され、外袋
全体が冷却されるようになっている。For example, a simple refrigerant for charging is manufactured by Johnson & Co., Ltd. in the United States.
It is already commercially available from Johngan and others for medical and recreational use. These simple coolants are made by sealing a thick, strong, water-impermeable outer bag with a powder of an endothermic substance and water separated by a water-impermeable inner bag or partition wall such as a plastic film. When used, by tearing the inner bag or partition wall, water and the endothermic substance are mixed when dissolved, and the entire outer bag is cooled.
かかる従来の簡易冷却剤は小型で携帯に便利であり、何
時でも取り出して使用できる利点はあるものの、溶解時
冷却物質の溶解に水を用いていたため、溶解時吸熱物質
の溶解速度が早く、吸熱反応が急速に進行し且つ早期に
終了してしまう、この為、Ｍ低温度まで短時間で到達し
、しかも室温に戻るまでの時間も短くなる結果、冷却効
果が通常１５分〜２０分しか持続しない欠点があった。Such conventional simple coolants are small and convenient to carry, and have the advantage of being able to be taken out and used at any time. However, because water is used to dissolve the cooling substance during melting, the endothermic substance dissolves quickly, and The reaction progresses rapidly and ends early. As a result, the M low temperature is reached in a short time, and the time to return to room temperature is also short, so the cooling effect usually lasts only 15 to 20 minutes. There was a drawback to not doing so.
そこで、冷却効果を長く持続させるべく溶解時吸熱物質
の溶解速度を遅くすることが検討され、水の代りに無機
塩類の結晶水を利用したり、カルボキシメチルセルロー
ス（ＣＭＣ）等の増粘剤を同時に混合する方法等が提案
されている。Therefore, in order to maintain the cooling effect for a long time, it has been considered to slow down the dissolution rate of the endothermic substance during dissolution. Methods of mixing have been proposed.
しかしながら、結晶水を有する無機ナトリウム填め無機
カリウム塩のような無機塩類は融点が低く１例えば最も
有効とされる硫酸ナトリウム１０水塩の融点は３２．３
℃である。この為、簡易冷却剤の利用頻度が高い夏期に
無機塩類が融解して氷状になり、溶解時吸熱物質の溶解
速度を遅らせる効果がなくなるという大きな欠点があっ
た。又、増粘剤を添加する方法は水の粘度を増加させる
だ１すであって、水の供給を遅らせることができず、冷
却時間の持続効果は充分ではなかった。However, inorganic salts such as inorganic sodium-filled inorganic potassium salts containing crystal water have low melting points.1For example, the melting point of sodium sulfate decahydrate, which is considered the most effective, is 32.3.
It is ℃. For this reason, in the summer when simple coolants are frequently used, the inorganic salts melt and become ice-like, resulting in a major drawback in that they are no longer effective in slowing down the dissolution rate of endothermic substances during melting. Further, the method of adding a thickener increases the viscosity of water, and the supply of water cannot be delayed, and the effect of sustaining the cooling time is not sufficient.
［発明が解決しようとする課題］
本発明は、この様な従来の事情に鑑み、冷却効果を長時
間持続することができ、夏期においても支障なく保存か
つ使用することのできる簡易冷却剤を提供することを目
的とする。[Problems to be Solved by the Invention] In view of such conventional circumstances, the present invention provides a simple coolant that can maintain a cooling effect for a long time and can be stored and used without problems even in the summer. The purpose is to
［課題を解決するための手段］
上記の目的を達成するため、本発明の簡易冷却剤におい
ては、溶解するとき熱を吸収する溶解時吸熱物質の粉末
と、無機塩類の水溶液を吸収してｗｌ潤した吸水性ポリ
マーとを、使用に際して混合できるように互いに分離し
て収納したことを特徴とする。[Means for Solving the Problems] In order to achieve the above object, the simple coolant of the present invention absorbs a powder of an endothermic substance during dissolution that absorbs heat when dissolved, and an aqueous solution of an inorganic salt. It is characterized in that the moistened water-absorbing polymer is housed separately from each other so that they can be mixed during use.
溶解時吸熱物質とは水に溶解するとき熱を吸収する物質
で、前記のごとく既に簡易冷却剤に使用されているもの
である０例えば、硝酸アンモニウム、硝酸ナトリウム、
チオ硫酸ナトリウム、塩化アンモニウム、塩化カルシウ
ム６水塩、尿素等があり、これらの物質の１種又は２種
以上を用いることができる。特に、硝酸アンモニウムと
尿素の混合物が低温が得られるので好ましい。Endothermic substances when dissolved are substances that absorb heat when dissolved in water, and are already used in simple coolants as mentioned above.For example, ammonium nitrate, sodium nitrate,
Examples include sodium thiosulfate, ammonium chloride, calcium chloride hexahydrate, and urea, and one or more of these substances can be used. In particular, a mixture of ammonium nitrate and urea is preferred because it provides a low temperature.
本発明で用いる吸水性ポリマーとは、水を多量に吸収し
て膨潤し、全体をゲル化する性質を持つ高分子物質であ
り、この性質を利用して生理用品や紙おむつ等に既に応
用されている公知のものである。吸水性ポリマーを原料
別に分類すると澱粉系、セルロース系、及び合成ポリマ
ー系に分けられ、また形態的には粉末状、繊維状、果粒
状及びシート状に分類できる。その具体例としては、三
洋化成工業（株）のｒサンウェット」、製鉄化学（株）
の「アクアキープ」、及び積木化成品工業（株）の「チ
クポリマーＡＱＪ等があり、その他多くの種類が工業生
産され、市販されている。The water-absorbing polymer used in the present invention is a polymer substance that absorbs a large amount of water, swells, and turns into a gel.Using this property, it has already been applied to sanitary products, disposable diapers, etc. This is a publicly known method. Water-absorbing polymers can be classified by raw material into starch-based, cellulose-based, and synthetic polymer-based, and in terms of form, they can be classified into powder, fiber, granule, and sheet. Specific examples include Sanyo Chemical Co., Ltd.'s R Sun Wet, and Tetsu Seikagaku Co., Ltd.
``Aqua Keep'' and ``Chikupolymer AQJ'' by Tsukiki Kaseihin Kogyo Co., Ltd., and many other types are industrially produced and commercially available.
この吸水性ポリマーに吸収させる水溶液な作る無機塩類
は水に可溶性であればよく、例えば硫酸ナトリウム、酢
酸ナトリウム、チオ硫酸ナトリウム、硫酸カリウム、硫
酸アンモニウム等を使用できるが、なかでも無水又は結
晶水を有する硫酸ナトリウムが好ましい。The inorganic salts used to form the aqueous solution to be absorbed by this water-absorbing polymer need only be soluble in water, and examples of which can be used include sodium sulfate, sodium acetate, sodium thiosulfate, potassium sulfate, ammonium sulfate, etc. Sodium sulfate is preferred.
溶解時吸熱物質の粉末と無機塩類の水溶液を吸収して膨
潤した吸水性ポリマーを、使用に際して混合できるよう
に互いに分離して収納する方法は既に複数種が公知であ
り、本発明においてもこれ等と同様であってよい０例え
ば、前記のごとくプラスチック等の非透水性外袋内に両
物質を非透水性の内袋又は隔壁で分離して封入し、使用
に際して外袋を手で揉んで中の内袋又は隔壁を破ること
により両物質を混合できるようにしてもよい。Several methods are already known for separating and storing a powder of an endothermic substance and a water-absorbing polymer swollen by absorbing an aqueous solution of an inorganic salt when dissolved so that they can be mixed together during use, and the present invention also uses these methods. For example, as described above, both substances are sealed in a water-impermeable outer bag made of plastic or the like, separated by a water-impermeable inner bag or partition, and when used, the outer bag is rubbed by hand to remove the inside. The inner bag or septum of the container may be ruptured to allow mixing of both substances.
［作用］
吸水性ポリマーは水を重量で５００倍〜１０００倍又は
それ以上吸収でき、しかも吸収した水は多少の圧力がか
かつても離水しない、従って、吸水して膨潤した吸水性
ポリマーからの水の遊離は、溶解時吸熱物質と接触して
も極めて遅くなる。又、吸水性ポリマーは夏期温度程度
では、融解したり又吸収した水を遊離したりすることが
ない。[Function] Water-absorbing polymers can absorb water 500 to 1000 times or more by weight, and the absorbed water does not release water even if some pressure is applied. The release of is extremely slow even when it comes into contact with an endothermic substance during dissolution. Furthermore, the water-absorbing polymer does not melt or release absorbed water at summer temperatures.
しかも、吸水性ポリマーに吸収させる水には無機塩類が
前もって溶解させであるので、無機塩類の濃度が高くな
るほど、溶解時吸熱物質が無機塩類水溶液に溶解する速
度が遅くなる。Moreover, since the inorganic salts are pre-dissolved in the water to be absorbed into the water-absorbing polymer, the higher the concentration of the inorganic salts, the slower the rate at which the endothermic substance dissolves in the aqueous inorganic salt solution.
従って、本発明においては、上記吸水性ポリマーとこれ
に吸収させた無機塩類水溶液との相乗効果によって、溶
解時吸熱物質が吸水性ポリマーに接した時、この吸水性
ポリマー中の若しくは吸水性ポリマーから遊離した無機
塩類水溶液に溶解時吸熱物質が溶解する速度が極めて遅
くなるので。Therefore, in the present invention, due to the synergistic effect of the water-absorbing polymer and the inorganic salt aqueous solution absorbed therein, when the endothermic substance during dissolution comes into contact with the water-absorbing polymer, This is because the rate at which endothermic substances dissolve when dissolved in an aqueous solution of free inorganic salts becomes extremely slow.
溶解時吸熱物質の溶解による冷却効果を従来よりも遥か
に長時間維持できる。The cooling effect due to the dissolution of the endothermic substance during dissolution can be maintained for a much longer time than before.
水溶液中の無機塩類の濃度は、長時間の冷却効果を得る
ためには１０重量％以上が好ましく、５０重量％以上が
更に好ましい、この濃度が高いほど冷却効果も持続する
ので、希望する冷却時間の長さに応じて濃度を適宜調整
するが、上限濃度としては無機塩類を １００℃の熱水
に飽和状態まで溶解させ、そのまま吸水性ポリマーに吸
収させることができる。The concentration of inorganic salts in the aqueous solution is preferably 10% by weight or more, more preferably 50% by weight or more in order to obtain a long-term cooling effect.The higher the concentration, the longer the cooling effect lasts, so the desired cooling time can be determined. The concentration is adjusted as appropriate depending on the length of the inorganic salt, but as an upper limit concentration, the inorganic salt can be dissolved in hot water at 100° C. to a saturated state, and the inorganic salt can be absorbed into the water-absorbing polymer as it is.
吸水性ポリマーに吸収させる無機塩類水溶液の量は、無
機塩類の濃度や使用する溶解時吸熱物質の量等によって
異なるが、通常は吸水性ポリマーの重量の２．５倍〜１
０倍程度が好ましい、尚、吸水性ポリマーは水溶液を吸
収して膨潤したとき凝集しやすくなる粉末状のものより
、果粒状のものの方が膨潤しても粘着性が上らず溶解時
吸熱物質の粉末と混合しやすい利点がある。The amount of the inorganic salt aqueous solution absorbed by the water-absorbing polymer varies depending on the concentration of the inorganic salt and the amount of the endothermic substance used during dissolution, but is usually 2.5 to 1 times the weight of the water-absorbing polymer.
It is preferable that the water-absorbing polymer is about 0 times more.It should be noted that the water-absorbing polymer absorbs an aqueous solution and swells, making it easier to agglomerate.It should be noted that a granule-like water-absorbing polymer does not become sticky even when it swells, and is an endothermic substance when dissolved. It has the advantage of being easy to mix with other powders.
又、無機塩類水溶液を吸収膨潤した吸水性ポリマーと溶
解時吸熱物質との割合は、重量で後者１に対して前者０
．７〜１の割合が好ましい。In addition, the ratio of the water-absorbing polymer that swelled by absorbing an aqueous inorganic salt solution and the endothermic substance when dissolved is 1 for the latter and 0 for the former.
．． A ratio of 7 to 1 is preferred.
［実施例］
Ｘ立■ユ
硫酸ナトリウム１０水塩８０ｇを水２０ｇに溶解させた
水溶液１００．を、果粒状の吸水性ポリマー（ａ水化成
品工業（株）製の「チクポリマーＡＱＪ）４０ｇに吸収
させた。吸水性ポリマーは上記水溶液を直ちに吸収して
多少膨潤した。[Example] 100 g of an aqueous solution prepared by dissolving 80 g of sodium sulfate decahydrate in 20 g of water. was absorbed into 40 g of a granular water-absorbing polymer (Chikupolymer AQJ manufactured by A-Mizu Kaseihin Kogyo Co., Ltd.).The water-absorbing polymer immediately absorbed the aqueous solution and swelled to some extent.
上記水溶液を吸収して膨潤した吸水性ポリマー１５０ｇ
に、硝酸アンモニウンムと尿素の等重量混合物１５０ｇ
を混合したところ、直ちに温度が低下し始め、気温２３
℃の室内で最低温度−３℃に達するまで１５分を要し、
この最低温度を１０分間持続し、その後温度が上昇し始
めて＋１０℃になるまで更に５０分を要した。150g of water-absorbing polymer swollen by absorbing the above aqueous solution
, 150 g of an equal weight mixture of ammonium nitrate and urea
When the mixture was mixed, the temperature immediately started to drop and the temperature reached 23.
It takes 15 minutes to reach the minimum temperature of -3℃ in a room at ℃,
This minimum temperature was maintained for 10 minutes, after which the temperature began to rise and took a further 50 minutes to reach +10°C.
比較のために、普通の水１００ｇを同種の吸水性ポリマ
ー４０．に吸収させた以外は上記実施例と同様の操作を
行なったところ、気温２３℃の室内において７分で最低
温度−６℃に達し、この最低温度が５分間持続し、その
後温度が上昇し始めて＋１０℃になるまで１８分であっ
た。For comparison, 100 g of ordinary water was mixed with 40.0 g of the same type of water-absorbing polymer. When the same operation as in the above example was carried out except that the temperature was absorbed by It took 18 minutes to reach +10°C.
又、従来のごとく吸水性ポリマーを使用せず、ＣＭＣを
溶解して粘度５ＱＯＯｃｐｓにした水１５０ｇに、硝酸
アンモニウンムと尿素の等重量混合物１５０ｇを混合し
たところ、気温２３℃の室内において５分で最低温度−
６℃に達し、この最低温度が５分間持続し、その後温度
が上昇し始めて＋１０ ”Ｏになるまで１９分であった
。In addition, without using a water-absorbing polymer as in the past, when 150 g of water made by dissolving CMC to a viscosity of 5 QOOcps was mixed with 150 g of an equal weight mixture of ammonium nitrate and urea, the lowest temperature reached within 5 minutes indoors at 23°C. Temperature -
A temperature of 6°C was reached and this minimum temperature lasted for 5 minutes, after which the temperature began to rise to +10''O in 19 minutes.
えＡ直ヱ
水に溶解させた硫酸ナトリウム１０水塩の濃度を１０％
、５０％及び１００％に変化させた以外、実施例１と同
様の操作したところ、各サンプルで得られた気温２３℃
の室内での最低温度、最低温度までの降下時間、最低温
度の持続時間及び最低温度から＋１０℃までの上昇時間
は下記の通りであった。A: The concentration of sodium sulfate decahydrate dissolved in water was 10%.
, 50% and 100%, but the same operation as in Example 1 was performed, and the temperature obtained for each sample was 23°C.
The minimum temperature in the room, the drop time to the minimum temperature, the duration of the minimum temperature, and the rise time from the minimum temperature to +10°C were as follows.
［発明の効果コ
本発明によれば、冷却効果を長時間持続することができ
、夏期においても支障なく保存かつ使用することのでき
る簡易冷却剤を提供することができる。[Effects of the Invention] According to the present invention, it is possible to provide a simple cooling agent that can maintain a cooling effect for a long time and can be stored and used without any trouble even in summer.
゛（・・１、＼・′゛（・・１、＼・′
Claims (1)
と、無機塩類の水溶液を吸収して膨潤した吸水性ポリマ
ーとを、使用に際して混合できるように互いに分離して
収納したことを特徴とする簡易冷却剤。(1) A powder of an endothermic substance when dissolved, which absorbs heat when dissolved, and a water-absorbing polymer that has swollen by absorbing an aqueous solution of inorganic salts are housed separately so that they can be mixed before use. A simple coolant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63179255A JPH0232192A (en) | 1988-07-20 | 1988-07-20 | Simple cooling agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63179255A JPH0232192A (en) | 1988-07-20 | 1988-07-20 | Simple cooling agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0232192A true JPH0232192A (en) | 1990-02-01 |
Family
ID=16062652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63179255A Pending JPH0232192A (en) | 1988-07-20 | 1988-07-20 | Simple cooling agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0232192A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108893097A (en) * | 2018-07-24 | 2018-11-27 | 郑州阿弗雷德化工科技有限公司 | For cooling down the nano silver fluid and its synthetic method of working medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56147883A (en) * | 1980-04-16 | 1981-11-17 | Takabishi Kagaku Kk | Two-part cooling medium |
| JPS5796076A (en) * | 1980-12-05 | 1982-06-15 | Koei Chem Co Ltd | Cooling agent |
-
1988
- 1988-07-20 JP JP63179255A patent/JPH0232192A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56147883A (en) * | 1980-04-16 | 1981-11-17 | Takabishi Kagaku Kk | Two-part cooling medium |
| JPS5796076A (en) * | 1980-12-05 | 1982-06-15 | Koei Chem Co Ltd | Cooling agent |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108893097A (en) * | 2018-07-24 | 2018-11-27 | 郑州阿弗雷德化工科技有限公司 | For cooling down the nano silver fluid and its synthetic method of working medium |
| CN108893097B (en) * | 2018-07-24 | 2021-03-23 | 钦新(中山)纳米科技有限公司 | Nano silver fluid for cooling working medium and synthetic method thereof |
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