JP2001139939A - Heat-storing material composition - Google Patents
Heat-storing material compositionInfo
- Publication number
- JP2001139939A JP2001139939A JP32506899A JP32506899A JP2001139939A JP 2001139939 A JP2001139939 A JP 2001139939A JP 32506899 A JP32506899 A JP 32506899A JP 32506899 A JP32506899 A JP 32506899A JP 2001139939 A JP2001139939 A JP 2001139939A
- Authority
- JP
- Japan
- Prior art keywords
- heat storage
- storage material
- material composition
- heat
- polyol
- 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.)
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Links
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、蓄熱材組成物に関
する。詳しくは、酢酸ナトリウム３水塩を主成分とする
蓄熱材に特定のポリオールを配合してなる蓄熱材組成物
に関する。本発明の蓄熱材組成物は柔軟性に優れている
ので、採暖具用に好適に用いることができる。[0001] The present invention relates to a heat storage material composition. Specifically, the present invention relates to a heat storage material composition in which a specific polyol is blended with a heat storage material mainly containing sodium acetate trihydrate. Since the heat storage material composition of the present invention is excellent in flexibility, it can be suitably used for a warming device.
【０００２】[0002]
【従来の技術】潜熱蓄熱材は、顕熱蓄熱材に比べて蓄熱
密度が高く、相変化温度が一定であるという利点を生か
して実用化されている。溶融と凝固の繰り返しに伴う潜
熱の出し入れを利用するため、その温度帯によって様々
な用途に使用される。潜熱蓄熱材としては水、硫酸ナト
リウム１０水塩、塩化カルシウム６水塩及び酢酸ナトリ
ウム３水塩等が知られている。これらは比較的低温での
潜熱を利用するために冷房設備や床暖房等に利用され
る。また、これら蓄熱材は各種の採暖具としても利用さ
れている。採暖具として人体等に利用する場合は、低温
火傷等の問題から５５℃付近の潜熱蓄熱材が最適であ
り、酢酸ナトリウム３水塩が蓄熱量、安全性の観点から
最適である。2. Description of the Related Art Latent heat storage materials have been put to practical use taking advantage of the advantages of a higher heat storage density and a constant phase change temperature than sensible heat storage materials. It is used for various applications depending on the temperature range in order to utilize the transfer of latent heat due to the repetition of melting and solidification. As the latent heat storage material, water, sodium sulfate decahydrate, calcium chloride hexahydrate, sodium acetate trihydrate, and the like are known. These are used for cooling equipment, floor heating and the like in order to utilize latent heat at a relatively low temperature. Further, these heat storage materials are also used as various warming tools. When used as a warming device for the human body or the like, a latent heat storage material at around 55 ° C. is optimal from the viewpoint of low-temperature burns and the like, and sodium acetate trihydrate is optimal from the viewpoint of heat storage and safety.
【０００３】これらの蓄熱材については、基本的に物質
の融解凝固に伴う潜熱を利用するので、その用途に合わ
せて蓄熱時の液化温度を上げたり、場合により蓄熱材自
体をゲル化させる等の検討が従来から行われて来た。一
方、蓄熱材を人体への採暖具として利用する場合には、
上記の検討に加えて、蓄熱材固化時の感触が問題とな
る。人体に接触する採暖具については、人体にフィット
し、且つ固化時でも人間の動きに追従する程度の柔かさ
が必要となるからである。[0003] Since these heat storage materials basically use the latent heat associated with the melting and solidification of the substance, the liquefaction temperature during heat storage may be increased in accordance with the intended use, or the heat storage material itself may be gelled. Considerations have traditionally been made. On the other hand, when using heat storage material as a warming tool for the human body,
In addition to the above considerations, the feeling when solidifying the heat storage material becomes a problem. This is because a warming tool that comes into contact with the human body needs to be soft enough to fit the human body and follow human movement even during solidification.
【０００４】この柔かさを蓄熱材に何らかの添加剤を加
えることにより付与しようとする場合、その添加剤は蓄
熱材自体の潜熱量を大きく低下させることなく且つ蓄熱
材と少なくとも部分的に相溶するものであることが好ま
しい。添加剤が相分離すると、固化時の感触は蓄熱材単
独の場合と変らず、しかも、その分離量に比例して蓄熱
量が低下するからである。When the softness is to be imparted by adding an additive to the heat storage material, the additive is at least partially compatible with the heat storage material without greatly reducing the amount of latent heat of the heat storage material itself. Preferably, it is This is because, when the additive is phase-separated, the feel at the time of solidification is the same as that of the heat storage material alone, and the amount of heat storage decreases in proportion to the amount of separation.
【０００５】酢酸ナトリウム３水塩にポリオールを配合
した系としては、例えば特開昭６０−３１５８６号公報
及び同６０−３１５８７号公報に酢酸ナトリウム３水塩
と水よりなる系にＰＶＡ、ホルムアルデヒド及びポリエ
チレングリコール或いはＰＶＡ、アセトン及びポリエチ
レングリコールを配合した蓄熱材がそれぞれ提案されて
いる。[0005] As a system in which a polyol is blended with sodium acetate trihydrate, for example, JP-A-60-31586 and JP-A-60-31587 disclose a system comprising sodium acetate trihydrate and water, PVA, formaldehyde and polyethylene. A heat storage material containing glycol or PVA, acetone and polyethylene glycol has been proposed.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、これら
の系は蓄熱材の相分離を防止するために、増粘剤として
ポリオール成分を配合したものであって、ポリオール成
分の水和塩に対する相溶性、柔軟性付与という面から分
子量、配合量について検討したものではない。本発明
は、蓄熱材として酢酸ナトリウム３水塩を主成分とし、
蓄熱量を大きく犠牲にすることなく、蓄熱材組成物固化
時における柔軟性を付与することのできる蓄熱材組成物
を提供することを目的とする。However, these systems contain a polyol component as a thickener in order to prevent phase separation of the heat storage material. The molecular weight and blending amount are not examined from the viewpoint of imparting flexibility. The present invention comprises sodium acetate trihydrate as a heat storage material as a main component,
An object of the present invention is to provide a heat storage material composition that can impart flexibility at the time of solidifying the heat storage material composition without significantly sacrificing the heat storage amount.
【０００７】[0007]
【課題を解決するための手段】本発明者らは、かかる事
情に鑑み鋭意検討した結果、人体採暖用として最適であ
る酢酸ナトリウム３水塩に特定のポリオールを配合する
ことにより、固化時においても適度な柔軟性を付与する
ことができ、且つ蓄熱量の低下も著しくないことを見出
し、本発明を完成するに至った。即ち、本発明の要旨
は、酢酸ナトリウム３水塩を主成分とする蓄熱材に柔軟
性付与成分として数平均分子量４００以下のポリオール
を配合してなる蓄熱材組成物、にある。Means for Solving the Problems The present inventors have conducted intensive studies in view of such circumstances, and as a result, by adding a specific polyol to sodium acetate trihydrate, which is optimal for heating the human body, a specific polyol can be obtained even during solidification. The present inventors have found that appropriate flexibility can be imparted and that the amount of heat storage does not significantly decrease, and the present invention has been completed. That is, the gist of the present invention resides in a heat storage material composition comprising a heat storage material containing sodium acetate trihydrate as a main component and a polyol having a number average molecular weight of 400 or less as a flexibility-imparting component.
【０００８】[0008]
【発明の実施の形態】以下、本発明を詳細に説明する。
本発明の蓄熱材組成物は、酢酸ナトリウム３水塩を主成
分とする蓄熱材に数平均分子量が４００以下のポリオー
ルを配合してなることを特徴とする。かかるポリオール
の配合により蓄熱材の結晶固化時において柔軟性を付与
することができる。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
The heat storage material composition of the present invention is characterized in that a heat storage material mainly containing sodium acetate trihydrate is mixed with a polyol having a number average molecular weight of 400 or less. By blending such a polyol, flexibility can be imparted during the solidification of the crystal of the heat storage material.
【０００９】本発明に用いられるポリオールについて
は、数平均分子量が４００以下のものであれば、特に限
定されるものではないが、その具体例としては、例えば
ポリエチレングリコール、ポリプロピレングリコール、
ポリグリセリン、エチレングリコール、プロピレングリ
コール、グリセリン、ポリビニルアルコール（ＰＶＡ）
等が挙げられる。中でも、柔軟性、蓄熱量の観点からは
ポリエチレングリコールが好ましい。The polyol used in the present invention is not particularly limited as long as it has a number average molecular weight of 400 or less. Specific examples thereof include polyethylene glycol, polypropylene glycol,
Polyglycerin, ethylene glycol, propylene glycol, glycerin, polyvinyl alcohol (PVA)
And the like. Among them, polyethylene glycol is preferred from the viewpoint of flexibility and heat storage.
【００１０】なお、数平均分子量が４００を越えるポリ
オールの場合、酢酸ナトリウム３水塩に溶解せず、相分
離が起こる。そして、数平均分子量４００以下のポリオ
ールの添加により、酢酸ナトリウム３水塩の結晶は大き
く成長することができず、結晶に柔軟性を持たせられる
のである。これら柔軟性付与成分の含有量は、酢酸ナト
リウム３水塩を主成分とする蓄熱材１００重量部に対し
て、好ましくは１０〜５０重量部、より好ましくは２０
〜４０重量部、特に好ましくは２０〜３０重量部であ
る。In the case of a polyol having a number average molecular weight of more than 400, it does not dissolve in sodium acetate trihydrate and causes phase separation. By adding a polyol having a number average molecular weight of 400 or less, crystals of sodium acetate trihydrate cannot grow large, and the crystals can be made flexible. The content of these flexibility-imparting components is preferably 10 to 50 parts by weight, more preferably 20 parts by weight, based on 100 parts by weight of the heat storage material mainly containing sodium acetate trihydrate.
-40 parts by weight, particularly preferably 20-30 parts by weight.
【００１１】柔軟性付与成分の含有量が１０重量部より
も低いと固化時に充分な柔軟性が得られにくく、５０重
量部よりも多いと柔軟性は得られるものの蓄熱材の蓄熱
量が低下し、時には結晶化が阻害されることがある。本
発明においては、平均分子量４００以下のポリオールを
相溶化剤としてそれを越える高分子量体を極少量添加、
組み合わせて使用することも可能である。この場合、平
均分子量４００以下のポリオールに対して高分子量体の
添加量は通常５重量％以下が好ましい。If the content of the flexibility-imparting component is less than 10 parts by weight, it is difficult to obtain sufficient flexibility upon solidification, and if it is more than 50 parts by weight, flexibility is obtained but the heat storage amount of the heat storage material decreases. Sometimes, crystallization is inhibited. In the present invention, a polyol having an average molecular weight of 400 or less is used as a compatibilizing agent, and a very small amount of a polymer having a higher molecular weight is added.
It is also possible to use them in combination. In this case, the amount of the high molecular weight compound to be added to the polyol having an average molecular weight of 400 or less is usually preferably 5% by weight or less.
【００１２】本発明の蓄熱材組成物には、酢酸ナトリウ
ム３水塩を主成分とする蓄熱材と平均分子量４００以下
のポリオール以外に、フェノール系、アミン系、ヒドロ
キシルアミン系、硫黄系、リン系等の公知の酸化防止
剤、クロム酸塩、ポリリン酸塩、亜硝酸ナトリウム等の
金属腐食防止剤、炭酸ナトリウム１水和塩、ピロリン酸
ナトリウム１０水和塩、臭素酸バリウム１水和塩、硫酸
カルシウム２水和塩、ピロリン酸二水素二ナトリウム６
水和塩、酢酸第二鉄、塩化第一鉄、塩化第二、塩化カル
シウム、臭化カルシウム、塩化第二銅、酒石酸カルシウ
ム、リン酸水素第二ナトリウム１２水和塩、リン酸二水
素ナトリウム２水和塩、リン酸三ナトリウム１２水和塩
及びフッ素化物等の過冷却防止剤等の添加剤を適宜添加
してもよい。The heat storage material composition of the present invention includes, in addition to a heat storage material mainly composed of sodium acetate trihydrate and a polyol having an average molecular weight of 400 or less, a phenol type, an amine type, a hydroxylamine type, a sulfur type, and a phosphorus type. Known corrosion inhibitors such as chromate, polyphosphate, sodium nitrite, sodium carbonate monohydrate, sodium pyrophosphate decahydrate, barium bromate monohydrate, sulfuric acid Calcium dihydrate, disodium dihydrogen pyrophosphate 6
Hydrated salt, ferric acetate, ferrous chloride, ferric chloride, calcium chloride, calcium bromide, cupric chloride, calcium tartrate, disodium hydrogen phosphate dodecahydrate, sodium dihydrogen phosphate 2 Additives such as a supercooling inhibitor such as a hydrated salt, trisodium phosphate dodecahydrate and a fluorinated product may be appropriately added.
【００１３】本発明の蓄熱材組成物調合の方法は、特に
限定されないが、酢酸ナトリウム３水塩を主成分とする
蓄熱材に平均分子量４００以下のポリオール、必要に応
じて添加剤を混合して均一に分散させればよい。より均
一に分散させるためには、酢酸ナトリウム３水塩を主成
分とする蓄熱材を加熱融解し、撹拌しながらポリオール
を少量ずつ添加する方法等が挙げられる。The method of preparing the heat storage material composition of the present invention is not particularly limited, but a heat storage material containing sodium acetate trihydrate as a main component is mixed with a polyol having an average molecular weight of 400 or less and, if necessary, an additive. What is necessary is just to disperse | distribute uniformly. For more uniform dispersion, a method in which a heat storage material containing sodium acetate trihydrate as a main component is heated and melted, and a polyol is added little by little while stirring or the like can be used.
【００１４】本発明の蓄熱材組成物の使用方法として
は、例えば、蓄熱容器に蓄熱材組成物を充填するカプセ
ル型、蓄熱容器を使用しないマイクロカプセル型等が挙
げられる。カプセル型は、蓄熱材組成物をカプセル等の
蓄熱容器に注入し、蓄熱容器を密封することにより得ら
れる。カプセルの材質は使用温度範囲で変形、溶融しな
い材質であれば特に制限はなく、例えば、ステンレス、
アルミニウム等の金属、ガラス、ポリカーボネート等の
エンジニアリングプラスチック等が挙げられる。The method of using the heat storage material composition of the present invention includes, for example, a capsule type in which the heat storage container is filled with the heat storage material composition, and a microcapsule type in which the heat storage container is not used. The capsule type is obtained by injecting the heat storage material composition into a heat storage container such as a capsule and sealing the heat storage container. The material of the capsule is not particularly limited as long as it does not deform or melt in the operating temperature range, for example, stainless steel,
Examples include metals such as aluminum, glass, and engineering plastics such as polycarbonate.
【００１５】カプセルの形状は、特に限定されず、例え
ば球状、板状、パイプ状、くびれ筒状、双子球状、波板
状、袋状等が挙げられ、用途に応じて適宜選択される。
マイクロカプセル型は、微細な蓄熱材の粒子又はその集
合体を使用温度範囲で溶融、劣化しない樹脂等の被膜で
覆ったもので、カプセル型に比べ表面積が極めて大きく
なるので、熱伝達効率が高いという利点がある。The shape of the capsule is not particularly limited, and includes, for example, a sphere, a plate, a pipe, a constricted cylinder, a twin sphere, a corrugated plate, and a bag, and is appropriately selected according to the use.
The microcapsule type is a type in which fine heat storage material particles or an aggregate thereof are covered with a coating such as a resin that does not melt and degrade in the operating temperature range, and has a very large surface area compared to the capsule type, so that the heat transfer efficiency is high. There is an advantage.
【００１６】[0016]
【実施例】以下、実施例により本発明を更に詳細に説明
するが、本発明はその要旨を越えない限り、これらの実
施例に限定されるものではない。酢酸ナトリウム３水塩
は日本合成社製を用いた。柔軟性付与成分であるポリオ
ールとしては、和光純薬社製のポリエチレングリコール
を用いた。EXAMPLES Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples unless it exceeds the gist. As sodium acetate trihydrate, Nippon Gosei Co., Ltd. was used. Polyethylene glycol manufactured by Wako Pure Chemical Industries, Ltd. was used as the polyol as the flexibility-imparting component.
【００１７】本発明における柔軟性は蓄熱材組成物を低
密度ポリエチレンにてラミネートされたアルミ袋中に密
封し、蓄熱材組成物が完全に固化後に袋の上から指で圧
力をかけて変形するか否かで定性的に判断した。この
際、指で押しても変形することが困難であった場合を
×、変形はするが固い場合を△、指で容易に変形可能な
場合を○とした。In the present invention, the heat storage material composition is sealed in an aluminum bag laminated with low-density polyethylene, and after the heat storage material composition is completely solidified, it is deformed by applying pressure from above the bag with a finger. It was qualitatively determined by whether or not. At this time, x indicates that it was difficult to deform even when pressed with a finger, △ indicates that it was deformed but hard, and ○ indicates that it could be easily deformed with a finger.
【００１８】融点は固化した蓄熱材組成物を少量サンプ
リングし、乳鉢で均一にした後、示差走査熱量計（Ｓｅ
ｉｋｏ Ｉｎｓｔｒｕｍｅｎｔｓ社製ＤＳＣ２２０）に
て０〜１００℃まで５℃／分で昇温した時の融解開始温
度をサンプリング位置を変えた三種のサンプルについて
それぞれ測定し（以下、「ｎ＝３で測定し」と略記する
ことがある）、平均値を用いた。The melting point was determined by sampling a small amount of the solidified heat storage material composition, making it uniform in a mortar, and then using a differential scanning calorimeter (Se).
The melting onset temperature when the temperature was raised from 0 to 100 ° C. at 5 ° C./min with an iko Instruments DSC 220) was measured for each of the three samples at different sampling positions (hereinafter, “measured at n = 3”). May be abbreviated), and the average value was used.
【００１９】実施例１ 酢酸ナトリウム３水塩融液５０ｇをホットプレートにて
融解、撹拌しながらポリエチレングリコール（＃４０
０）５ｇを少量ずつ添加した。得られた蓄熱材組成物を
アルミ袋に密封後、大気中にて完全に固化させた。指に
よる固化時感触テストの後、袋内の蓄熱材組成物を乳鉢
にて粉砕、秤量し、アルミニウムの簡易密閉セルに封入
した。示差走査熱量計（セイコー電子工業社製、ＤＳＣ
２２０）で前記温度プログラムに従い融解開始温度をｎ
＝３で測定し、その平均値を融解開始温度とした。結果
を表−１に示す。Example 1 50 g of sodium acetate trihydrate melt was melted on a hot plate and mixed with polyethylene glycol (# 40) while stirring.
0) 5 g was added in small portions. After the obtained heat storage material composition was sealed in an aluminum bag, it was completely solidified in the air. After a touch test during solidification with a finger, the heat storage material composition in the bag was pulverized in a mortar, weighed, and sealed in an aluminum simple closed cell. Differential scanning calorimeter (manufactured by Seiko Instruments Inc., DSC
At 220), the melting start temperature is set to n according to the temperature program.
= 3, and the average was taken as the melting onset temperature. The results are shown in Table 1.
【００２０】実施例２〜４ 酢酸ナトリウム３水塩融液にエチレングリコールを２０
重量部（実施例２）、ポリエチレングリコール＃４００
をそれぞれ３０重量部（実施例３）、５０重量部（実施
例４）配合し、実施例１と同様に測定を行った。結果を
表−１に示す。Examples 2 to 4 Ethylene glycol was added to a sodium acetate trihydrate melt.
Parts by weight (Example 2), polyethylene glycol # 400
Was blended in an amount of 30 parts by weight (Example 3) and 50 parts by weight (Example 4), respectively, and the measurement was carried out in the same manner as in Example 1. The results are shown in Table 1.
【００２１】実施例５ 酢酸ナトリウム３水塩融液にポリエチレングリコール＃
４００にポリエチレングリコール＃７００００を５重量
％溶解した融液を２０重量部配合し、実施例１と同様に
測定を行った。結果を表−１に示す。比較例１酢酸ナト
リウム３水塩融液をアルミ袋に密封し、実施例１と同様
の評価を行った。Example 5 Polyethylene glycol # was added to a sodium acetate trihydrate melt.
20 parts by weight of a melt in which 5% by weight of polyethylene glycol # 70000 was dissolved in 400 were mixed, and the measurement was performed in the same manner as in Example 1. The results are shown in Table 1. Comparative Example 1 The sodium acetate trihydrate melt was sealed in an aluminum bag, and the same evaluation as in Example 1 was performed.
【００２２】実施例６ 酢酸ナトリウム３水塩融液にポリエチレングリコール＃
４００を１００重量部配合し、実施例１と同様に測定を
行った。結果を表−１に示す。Example 6 Polyethylene glycol # was added to a sodium acetate trihydrate melt.
400 was mixed in 100 parts by weight, and the measurement was performed in the same manner as in Example 1. The results are shown in Table 1.
【００２３】[0023]
【表１】 [Table 1]
【００２４】[0024]
【発明の効果】本発明によれば、蓄熱材として酢酸ナト
リウム３水塩を主成分とする蓄熱材組成物において、平
均分子量４００以下のポリオールを添加することによ
り、蓄熱量を大きく犠牲にすることなく蓄熱材組成物固
化時の柔軟性を付与することができる。According to the present invention, a heat storage material is largely sacrificed by adding a polyol having an average molecular weight of 400 or less to a heat storage material composition mainly containing sodium acetate trihydrate as a heat storage material. Therefore, flexibility at the time of solidifying the heat storage material composition can be imparted.
Claims (3)
熱材に柔軟性付与成分として数平均分子量４００以下の
ポリオールを配合してなる蓄熱材組成物。A heat storage material composition comprising a heat storage material containing sodium acetate trihydrate as a main component and a polyol having a number average molecular weight of 400 or less as a flexibility-imparting component.
部に対して１０〜５０重量部である請求項１に記載の蓄
熱材組成物。2. The heat storage material composition according to claim 1, wherein the blending amount of the polyol is 10 to 50 parts by weight based on 100 parts by weight of the heat storage material.
ポリプロピレングリコール、ポリグリセリン、エチレン
グリコール、プロピレングリコール、グリセリン及びポ
リビニルアルコールから選ばれる少なくとも一種である
請求項１又は２に記載の蓄熱材組成物。3. The polyol is polyethylene glycol,
The heat storage material composition according to claim 1, wherein the heat storage material composition is at least one selected from polypropylene glycol, polyglycerin, ethylene glycol, propylene glycol, glycerin, and polyvinyl alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32506899A JP2001139939A (en) | 1999-11-16 | 1999-11-16 | Heat-storing material composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32506899A JP2001139939A (en) | 1999-11-16 | 1999-11-16 | Heat-storing material composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001139939A true JP2001139939A (en) | 2001-05-22 |
Family
ID=18172803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32506899A Pending JP2001139939A (en) | 1999-11-16 | 1999-11-16 | Heat-storing material composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001139939A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008063487A (en) * | 2006-09-08 | 2008-03-21 | Nichiyu Giken Kogyo Co Ltd | Heat storage material and cooling method for electric power cable |
| JP2013075022A (en) * | 2011-09-30 | 2013-04-25 | Daio Paper Corp | Heating implement |
| WO2014024883A1 (en) * | 2012-08-08 | 2014-02-13 | 古河電気工業株式会社 | Heat storage material composition, auxiliary heat source using same, and heat supply method |
| US9732264B2 (en) | 2013-09-30 | 2017-08-15 | Panasonic Corporation | Heat storage material composition and method for using heat storage material composition |
| JP2018030924A (en) * | 2016-08-23 | 2018-03-01 | 東ソー株式会社 | Heat storage material composition and heating pack containing the same |
| CN114736658A (en) * | 2022-05-09 | 2022-07-12 | 顺德职业技术学院 | Organic-inorganic eutectic mixture phase-change heat storage material based on sodium acetate trihydrate and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6031586A (en) * | 1983-07-29 | 1985-02-18 | Matsushita Electric Ind Co Ltd | Thermal energy storage material |
| JPS6031587A (en) * | 1983-07-29 | 1985-02-18 | Matsushita Electric Ind Co Ltd | Thermal energy storage material |
| JPH0292986A (en) * | 1988-09-30 | 1990-04-03 | Kubota Ltd | Heat accumulating composition |
-
1999
- 1999-11-16 JP JP32506899A patent/JP2001139939A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6031586A (en) * | 1983-07-29 | 1985-02-18 | Matsushita Electric Ind Co Ltd | Thermal energy storage material |
| JPS6031587A (en) * | 1983-07-29 | 1985-02-18 | Matsushita Electric Ind Co Ltd | Thermal energy storage material |
| JPH0292986A (en) * | 1988-09-30 | 1990-04-03 | Kubota Ltd | Heat accumulating composition |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008063487A (en) * | 2006-09-08 | 2008-03-21 | Nichiyu Giken Kogyo Co Ltd | Heat storage material and cooling method for electric power cable |
| JP2013075022A (en) * | 2011-09-30 | 2013-04-25 | Daio Paper Corp | Heating implement |
| WO2014024883A1 (en) * | 2012-08-08 | 2014-02-13 | 古河電気工業株式会社 | Heat storage material composition, auxiliary heat source using same, and heat supply method |
| JPWO2014024883A1 (en) * | 2012-08-08 | 2016-07-25 | 古河電気工業株式会社 | Heat storage material composition, auxiliary heat source and heat supply method using the same |
| US10359237B2 (en) | 2012-08-08 | 2019-07-23 | Furukawa Electric Co., Ltd. | Heat source material composition, and auxiliary heat source and heat supply method using the same |
| US9732264B2 (en) | 2013-09-30 | 2017-08-15 | Panasonic Corporation | Heat storage material composition and method for using heat storage material composition |
| JP2018030924A (en) * | 2016-08-23 | 2018-03-01 | 東ソー株式会社 | Heat storage material composition and heating pack containing the same |
| CN114736658A (en) * | 2022-05-09 | 2022-07-12 | 顺德职业技术学院 | Organic-inorganic eutectic mixture phase-change heat storage material based on sodium acetate trihydrate and preparation method thereof |
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