JPH051282A - Heat storage material - Google Patents

Heat storage material

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Publication number
JPH051282A
JPH051282A JP3153532A JP15353291A JPH051282A JP H051282 A JPH051282 A JP H051282A JP 3153532 A JP3153532 A JP 3153532A JP 15353291 A JP15353291 A JP 15353291A JP H051282 A JPH051282 A JP H051282A
Authority
JP
Japan
Prior art keywords
heat storage
hydrate
density
ethylene
parts
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.)
Granted
Application number
JP3153532A
Other languages
Japanese (ja)
Other versions
JP2548850B2 (en
Inventor
Katsuhiko Maruo
勝彦 丸尾
Mikio Sei
三喜男 清
Masaru Yokoyama
勝 横山
Mitsuhiro Tsuruki
充啓 鶴来
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP3153532A priority Critical patent/JP2548850B2/en
Publication of JPH051282A publication Critical patent/JPH051282A/en
Application granted granted Critical
Publication of JP2548850B2 publication Critical patent/JP2548850B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To provide a material which can be heated on a high-frequency heating apparatus such as microwave oven by mixing a molten mixture of an ethylene-alpha-olefin copolymer with a crystalline org. compd. with a hydrate. CONSTITUTION:The material is prepd. by mixing a molten mixture of an ethylene-alpha-olefin copolymer (e.g. a copolymer of ethylene with several mol.% alpha-olefin such as propylene) having a density of 0.925g/cm<3> or lower with a crystalline org. compd. (e.g. paraffin) with a hydrate (e.g. hydrated sodium sulfate) and, if necessary, molding the resulting mixture into a desired shape. The material can be heated on a high-frequency heating apparatus such as a microwave oven.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、相変化にともなって
発生する潜熱を利用した蓄熱体に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat storage body using latent heat generated by a phase change.

【0002】[0002]

【従来の技術】一定温度で大量の熱を蓄えることのでき
る潜熱蓄熱材が、エネルギーの効率的利用のために用い
られている。このような潜熱蓄熱材の中でも最も普及し
ているのが、固相−液相間の相転移に要する潜熱を利用
した潜熱蓄熱材である。しかし、このような固相−液相
間の相転移を利用した潜熱蓄熱材においては、その取り
扱いが問題となる。すなわち、相転移により液体になっ
た際、流出してしまうのを防ぐなどの配慮が必要となる
ためである。従来このような潜熱蓄熱材は、通常金属や
樹脂などでできた容器中に納めなければならなかった。
2. Description of the Related Art A latent heat storage material capable of storing a large amount of heat at a constant temperature is used for efficient use of energy. The most widespread among such latent heat storage materials is the latent heat storage material that utilizes the latent heat required for the phase transition between the solid phase and the liquid phase. However, in the latent heat storage material that utilizes such a solid-liquid phase transition, its handling becomes a problem. That is, it is necessary to take measures such as preventing the liquid from flowing out when it becomes liquid due to the phase transition. Conventionally, such a latent heat storage material usually has to be stored in a container made of metal or resin.

【0003】これに対し、ポリエチレンと潜熱蓄熱材で
あるパラフィンを溶融混合することでパラフィンをポリ
エチレン中に分散させ、パラフィン融解時でも液状にな
らない蓄熱体が特開昭59−170180号公報、特開
昭62−187782号公報で提案されている。また、
ポリエステル樹脂中に塩化カルシウム・6水塩を分散さ
せ、水和塩型潜熱蓄熱材である塩化カルシウム・6水塩
を固定化する方法も提案されているが、核材として用い
る塩化ストロンチウム・6水塩の分散が悪いため、性能
の安定化ができない等の問題を抱え、実用化には至って
いないのが現状である。
On the other hand, a heat storage material that melts and mixes polyethylene and paraffin, which is a latent heat storage material, to disperse the paraffin in the polyethylene and does not become liquid even when the paraffin is melted is disclosed in JP-A-59-170180. It is proposed in Japanese Laid-Open Patent Publication No. 62-187782. Also,
A method has been proposed in which calcium chloride hexahydrate is dispersed in polyester resin to fix calcium chloride hexahydrate, which is a hydrated salt type latent heat storage material, but strontium chloride hexahydrate used as a core material is also proposed. Due to poor salt dispersion, there are problems such as inability to stabilize the performance, and it is the current situation that it has not been put to practical use.

【0004】[0004]

【発明が解決しようとする課題】従来のポリエチレンあ
るいはエチレン−αオレフィン共重合体とパラフィンを
溶融混合してなる蓄熱体は、ヒーター等の加熱源に接触
させて蓄熱させる以外に蓄熱方法はなく、電子レンジ等
を用いて高周波加熱することはできなかった。この発明
は、電子レンジ等の高周波加熱装置を用いて高周波加熱
することができる蓄熱体を提供することを課題とする。
A conventional heat storage material obtained by melt-mixing polyethylene or ethylene-α-olefin copolymer and paraffin has no heat storage method other than contacting with a heating source such as a heater to store heat. It was not possible to perform high frequency heating using a microwave oven or the like. An object of the present invention is to provide a heat storage body capable of high frequency heating using a high frequency heating device such as a microwave oven.

【0005】[0005]

【課題を解決するための手段】上記課題を解決するため
に、この発明は、密度0.925g/cm3 未満のエチレ
ン−αオレフィン共重合体と結晶性有機化合物の溶融混
合物中に結晶水を含む水和物が含まれている蓄熱体を提
供する。この発明に用いる水和物とは、結晶水を有する
ものであれば特に限定はしないが、たとえば、硫酸ナト
リウム水和物、ほう酸ナトリウム水和物、塩化カルシウ
ム水和物、塩化ストロンチウム水和物、クロム酸ナトリ
ウム水和物、カリミョウバン水和物、硝酸マグネシウム
水和物、硝酸リチウム水和物、リン酸水素ナトリウム水
和物、チオ硫酸ナトリウム水和物、酢酸ナトリウム水和
物、炭酸ナトリウム水和物、硫酸アルミニウム水和物等
が挙げられる。
In order to solve the above-mentioned problems, the present invention provides water of crystallization in a molten mixture of an ethylene-α-olefin copolymer having a density of less than 0.925 g / cm 3 and a crystalline organic compound. A heat storage body including a hydrate containing the heat storage body is provided. The hydrate used in this invention is not particularly limited as long as it has water of crystallization, for example, sodium sulfate hydrate, sodium borate hydrate, calcium chloride hydrate, strontium chloride hydrate, Sodium chromate hydrate, potassium alum hydrate, magnesium nitrate hydrate, lithium nitrate hydrate, sodium hydrogen phosphate hydrate, sodium thiosulfate hydrate, sodium acetate hydrate, sodium carbonate hydrate And aluminum sulfate hydrate.

【0006】この発明に用いるエチレン−αオレフィン
共重合体は、密度0.925g/cm 3 以下のものであれ
ば何を用いても良く、密度0.900g/cm3 以下のも
のが望ましい。エチレン−αオレフィン共重合体の密度
が0.925g/cm3 以上だと、パラフィンなどの結晶
性有機化合物の染み出し量が多くなるという問題があ
る。エチレン−αオレフィン共重合体としては、たとえ
ば、エチレンと、プロピレン、ブテン−1、ペンタン、
ヘキセン−1、4−メチルペンテン−1、オクテン−1
などのαオレフィンとをαオレフィンが数モル%程度の
割合で共重合させたものが挙げられるが、これに限定す
るものではない。この発明に使用されうるエチレン−α
オレフィン共重合体の市販品の例を挙げると、たとえ
ば、住友化学工業株式会社製商品名スミカセン−L GZ8
01(密度0.920g/cm3 )、エクセレンVL100
(密度0.900g/cm3 )、エクセレンVL800
(密度0.905g/cm3 )、エクセレンEUL130
(密度0.890g/cm3 )、三井石油化学工業株式会
社製商品名タフマーP−0680(密度0.870g/
cm 3 )、タフマーA−4085(密度0.880g/cm
3 )、日本ユニカー株式会社製商品名ナックフレックス
DFDA−1138(密度0.900g/cm3 )、ナッ
クフレックスDEFD−1210(密度0.890g/
cm3 )等が挙げられる。
Ethylene-α-olefin used in the present invention
The copolymer has a density of 0.925 g / cm 3Any of the following
Anything can be used, density 0.900 g / cm3Also below
Is desirable. Density of ethylene-α-olefin copolymer
Is 0.925 g / cm3Crystals such as paraffin
There is a problem that the amount of exuding organic compounds is large.
It As an ethylene-α olefin copolymer,
For example, ethylene, propylene, butene-1, pentane,
Hexene-1, 4-methylpentene-1, octene-1
Α-olefins such as α-olefins of about several mol%
However, it is not limited to this.
Not something. Ethylene-α that can be used in this invention
To give an example of a commercially available olefin copolymer,
For example, Sumitomo Chemical Co., Ltd. product name Sumikasen-L GZ8
01 (Density 0.920g / cm3), Excellen VL100
(Density 0.900g / cm3), Excellen VL800
(Density 0.905g / cm3), Excellen EUL130
(Density 0.890 g / cm3), Mitsui Petrochemical Industry Stock Association
Company name Toughmer P-0680 (density 0.870 g /
cm 3), Tuffmer A-4085 (density 0.880 g / cm
3), Product name Nacflex manufactured by Nippon Unicar Co., Ltd.
DFDA-1138 (Density 0.900g / cm3), N
Kuflex DEFD-1210 (density 0.890 g /
cm3) And the like.

【0007】この発明に用いる結晶性有機化合物は、結
晶性を有する有機化合物であれば特に制限はなく、たと
えば、パラフィン、脂肪酸エステル等が挙げられる。結
晶性有機化合物は、たとえば、上記エチレン−αオレフ
ィン共重合体の融点よりも低い融点を有するものが使用
される。水和物、エチレン−αオレフィン共重合体およ
び結晶性有機化合物の配合比率は、たとえば、エチレン
−αオレフィン共重合体5〜60重量部、結晶性有機化
合物30〜90重量部、水和物5〜100重量部とされ
る。この他、必要に応じて、高密度ポリエチレンを0〜
40重量部などを適宜添加することができる。高密度ポ
リエチレンは、この発明の蓄熱体に機械的強度を付与す
るためのものであり、必ずしも加える必要はなく、ま
た、樹脂も高密度ポリエチレンに限定されることはな
く、たとえば、ポリプロピレン、ポリスチレン等の結晶
性ポリオレフィンを使用してもよい。
The crystalline organic compound used in the present invention is not particularly limited as long as it is an organic compound having crystallinity, and examples thereof include paraffin and fatty acid ester. As the crystalline organic compound, for example, one having a melting point lower than that of the ethylene-α-olefin copolymer is used. The mixing ratio of the hydrate, the ethylene-α-olefin copolymer and the crystalline organic compound is, for example, 5 to 60 parts by weight of the ethylene-α-olefin copolymer, 30 to 90 parts by weight of the crystalline organic compound, and 5 of the hydrate. Up to 100 parts by weight. In addition, if necessary, add high-density polyethylene to 0-
For example, 40 parts by weight can be added appropriately. The high-density polyethylene is for imparting mechanical strength to the heat storage body of the present invention, and it is not always necessary to add it, and the resin is not limited to the high-density polyethylene. For example, polypropylene, polystyrene, etc. You may use the crystalline polyolefin of.

【0008】この発明の蓄熱体を作る方法は、特に制限
はないが、たとえば、エチレン−αオレフィン共重合体
と結晶性有機化合物を溶融混合し、この時、水和物を混
合するなどの方法が挙げられる。溶融混合の際の温度
は、たとえば、エチレン−αオレフィン共重合体の融点
以上であって熱分解温度以下の範囲内で適宜設定される
が、これに限定されない。溶融混合後、溶融混合物は、
必要に応じて、任意の形状に成形される。また、この発
明では、水和物を、前記溶融混合物中に分散させるよう
にしてもよいが、前記溶融混合物で包み込むようにして
もよい。用途によっては、溶融混合物を、融解した結晶
性有機化合物を全く透過させない袋などで覆ってもよ
い。
The method for producing the heat storage material of the present invention is not particularly limited, but, for example, a method in which an ethylene-α-olefin copolymer and a crystalline organic compound are melt-mixed and a hydrate is mixed at this time. Is mentioned. The temperature at the time of melt mixing is, for example, appropriately set within the range of not less than the melting point of the ethylene-α-olefin copolymer and not more than the thermal decomposition temperature, but is not limited thereto. After melt mixing, the melt mixture is
If necessary, it is molded into any shape. Further, in the present invention, the hydrate may be dispersed in the melt mixture, but it may be wrapped in the melt mixture. Depending on the application, the molten mixture may be covered with a bag or the like that is completely impermeable to the melted crystalline organic compound.

【0009】[0009]

【作用】結晶水を含む水和物は非常に安定であり、結晶
水を含んでいることにより、蓄熱体を高周波加熱するこ
とが可能になる。
The hydrate containing water of crystallization is very stable, and by containing water of crystallization, it becomes possible to heat the regenerator at high frequency.

【0010】[0010]

【実施例】以下に、この発明の具体的な実施例および比
較例を示すが、この発明は下記実施例に限定されない。 −実施例1− 住友化学工業株式会社製のスミカセン−L GZ801(エチ
レン−αオレフィン共重合体(αオレフィン:ヘキセン
−1)、密度0.920g/cm3 )、日本精蝋株式会社
製のパラフィン125品(融点52℃)と、塩化カルシ
ウム水和塩を溶融混合した後、型に注入して成形し、図
1のごとき円柱状蓄熱体(φ50mm×15mm)1を作製
した。混合は、重量部で、スミカセン−L GZ801を30
部、パラフィン125品を70部、塩化カルシウム水和
塩を50部の割合で行った。
EXAMPLES Specific examples and comparative examples of the present invention will be shown below, but the present invention is not limited to the following examples. —Example 1— Sumikasen-L GZ801 (ethylene-α olefin copolymer (α olefin: hexene-1), density 0.920 g / cm 3 ) manufactured by Sumitomo Chemical Co., Ltd., paraffin manufactured by Nippon Seiro Co., Ltd. 125 pieces (melting point: 52 ° C.) and calcium chloride hydrate were melt-mixed and then poured into a mold and molded to prepare a cylindrical heat storage body (φ50 mm × 15 mm) 1 as shown in FIG. Mixing is 30 parts by weight of Sumikasen-L GZ801.
Parts, 70 parts of 125 paraffin products, and 50 parts of calcium chloride hydrate.

【0011】実施例1で得られた蓄熱体を電子レンジ
(500W)を用いて高周波加熱を行ったところ、容易
に加熱でき、蓄熱することができた。 −比較例1− 住友化学工業株式会社製のスミカセン−L GZ801(エチ
レン−αオレフィン共重合体(αオレフィン:ヘキセン
−1)、密度0.920g/cm3 )と日本精蝋株式会社
製のパラフィン125品(融点52℃)を溶融混合した
後、型に注入して成形し、円柱状蓄熱体(φ50mm×1
5mm)を作製した。混合は、重量部で、スミカセン−L
GZ801を30部、パラフィン125品を70部の割合で
行った。
When the heat storage material obtained in Example 1 was subjected to high-frequency heating using a microwave oven (500 W), it was possible to easily heat and store heat. —Comparative Example 1— Sumikasen-L GZ801 (ethylene-α olefin copolymer (α olefin: hexene-1), density 0.920 g / cm 3 ) manufactured by Sumitomo Chemical Co., Ltd. and paraffin manufactured by Nippon Seiro Co., Ltd. After melting and mixing 125 products (melting point 52 ° C), they are poured into a mold to be molded, and a cylindrical heat storage body (φ50 mm x 1
5 mm) was produced. Mixing is by weight, Sumikasen-L
30 parts of GZ801 and 70 parts of 125 paraffin products were used.

【0012】比較例1で得られた蓄熱体を電子レンジ
(500W)を用いて高周波加熱を行ったところ、加熱
できなかった。 −実施例2− 三井石油化学工業株式会社製のタフマーP0680(エ
チレン−αオレフィン共重合体(αオレフィン:プロピ
レン)、密度0.870g/cm3 )、昭和電工株式会社
製のショウレックスS6006M(高密度ポリエチレ
ン、密度0.957g/cm3 )、日本精蝋株式会社製の
パラフィン125品(融点52℃)と、塩化カルシウム
水和塩を溶融混合した後、型に注入して成形し、円柱状
蓄熱体(φ50mm×15mm)を作製した。混合は、重量
部で、タフマーP0680を20部、ショウレックスS
6006Mを10部、パラフィン125品を70部、塩
化カルシウム水和塩を50部の割合で行った。
When the heat storage material obtained in Comparative Example 1 was subjected to high frequency heating using a microwave oven (500 W), it could not be heated. -Example 2-Tufmer P0680 (ethylene-α olefin copolymer (α olefin: propylene), density 0.870 g / cm 3 ) manufactured by Mitsui Petrochemical Industry Co., Ltd., Showlex S6006M (high Density polyethylene, density 0.957 g / cm 3 ), 125 parts paraffin (melting point 52 ° C.) made by Nippon Seiro Co., Ltd. and calcium chloride hydrate are melt-mixed, and then poured into a mold to be molded into a cylindrical shape. A heat storage body (φ50 mm × 15 mm) was produced. Mix by weight, 20 parts Toughmer P0680, Shorex S
10 parts of 6006M, 70 parts of 125 paraffin products, and 50 parts of calcium chloride hydrate were used.

【0013】実施例2で得られた蓄熱体を電子レンジ
(500W)を用いて高周波加熱を行ったところ、容易
に加熱でき、蓄熱することができた。 −比較例2− 三井石油化学工業株式会社製のタフマーP0680(エ
チレン−αオレフィン共重合体(αオレフィン:プロピ
レン)、密度0.870g/cm3 )、昭和電工株式会社
製のショウレックスS6006M(高密度ポリエチレ
ン、密度0.957g/cm3 )と日本精蝋株式会社製の
パラフィン125品(融点52℃)を溶融混合した後、
型に注入して成形し、円柱状蓄熱体(φ50mm×15m
m)を作製した。混合は、重量部で、タフマーP068
0を20部、ショウレックスS6006Mを10部、パ
ラフィン125品を70部の割合で行った。
When the heat storage material obtained in Example 2 was subjected to high frequency heating using a microwave oven (500 W), it was possible to easily heat and store heat. -Comparative Example 2-Toughmer P0680 (ethylene-α olefin copolymer (α olefin: propylene), density 0.870 g / cm 3 ) manufactured by Mitsui Petrochemical Co., Ltd., Showlex S6006M (high Density polyethylene, density 0.957 g / cm 3 ) and 125 paraffin products (melting point 52 ° C.) manufactured by Nippon Seiro Co., Ltd. were melt mixed,
It is poured into a mold and molded into a cylindrical heat storage body (φ50 mm x 15 m
m) was prepared. Mix by weight, Tuffmer P068
0 for 20 parts, Sholex S6006M for 10 parts, and paraffin 125 products for 70 parts.

【0014】比較例2で得られた蓄熱体を電子レンジ
(500W)を用いて高周波加熱を行ったところ、加熱
できなかった。 −実施例3− 三井石油化学工業株式会社製のタフマーP0680(エ
チレン−αオレフィン共重合体(αオレフィン:プロピ
レン)、密度0.870g/cm3 )、昭和電工株式会社
製のショウレックスS6006M(高密度ポリエチレ
ン、密度0.957g/cm3 )、日本精蝋株式会社製の
パラフィン125品(融点52℃)と、水和物として硫
酸ナトリウム・10水塩と塩化ナトリウムと塩化アンモ
ニウムの共晶水和塩を溶融混合した後、型に注入して成
形し、円柱状蓄熱体(φ50mm×15mm)を作製した。
混合は、重量部で、タフマーP0680を20部、ショ
ウレックスS6006Mを10部、パラフィン125品
を70部、前記共晶水和塩を70部の割合で行った。硫
酸ナトリウム・10水塩と塩化ナトリウムと塩化アンモ
ニウムの共晶水和塩は、融点が11℃の潜熱蓄熱材であ
る。
When the heat storage material obtained in Comparative Example 2 was subjected to high frequency heating using a microwave oven (500 W), it could not be heated. -Example 3-Mitsui Petrochemical Co., Ltd. Tuffmer P0680 (ethylene-α olefin copolymer (α olefin: propylene), density 0.870 g / cm 3 ), Showa Denko KK Showlex S6006M (high Density polyethylene, density 0.957 g / cm 3 ), 125 paraffin products (melting point 52 ° C.) manufactured by Nippon Seiro Co., Ltd., and eutectic hydrate of sodium sulfate decahydrate, sodium chloride and ammonium chloride as hydrates. After melt-mixing the salt, it was poured into a mold and molded to prepare a cylindrical heat storage body (φ50 mm × 15 mm).
The mixing was carried out in a ratio of 20 parts by weight of Tuffmer P0680, 10 parts of Shorex S6006M, 70 parts of paraffin 125 product, and 70 parts of the eutectic hydrated salt. The eutectic hydrated salt of sodium sulfate decahydrate and sodium chloride and ammonium chloride is a latent heat storage material having a melting point of 11 ° C.

【0015】実施例3で得られた蓄熱体を電子レンジ等
による高周波により容易に誘電加熱でき、かつ、パラフ
ィン125品の融点52℃、前記共晶水和塩の融点11
℃の2つの融点を持つ蓄熱体であった。 −実施例4− この実施例は、この発明の蓄熱体を携帯用カイロに利用
した場合の実施例である。
The heat storage material obtained in Example 3 can be easily dielectrically heated by a high frequency wave such as a microwave oven, and the paraffin 125 product has a melting point of 52 ° C. and the eutectic hydrated salt has a melting point of 11
It was a heat storage body having two melting points of ° C. -Example 4-This example is an example in which the heat storage body of the present invention is used in a portable warmer.

【0016】三井石油化学工業株式会社製のタフマーP
0680(エチレン−αオレフィン共重合体(αオレフ
ィン:プロピレン)、密度0.870g/cm3 )、昭和
電工株式会社製のショウレックスS6006M(高密度
ポリエチレン、密度0.957g/cm3 )、日本精蝋株
式会社製のパラフィン125品(融点52℃)と、塩化
カルシウム水和塩を溶融混合した後、型に注入して成形
し、円柱状の溶融混合物(φ50mm×15mm)1aを作
製し、図2のようにポリ塩化ビニリデンおよびポリエチ
レンの多層シートからなる袋2aで密封包装して蓄熱体
11を得た。溶融混合は、重量部で、タフマーP068
0を20部、ショウレックスS6006Mを10部、パ
ラフィン125品を70部、塩化カルシウム水和塩を5
0部の割合で行った。
Tuffmer P manufactured by Mitsui Petrochemical Industry Co., Ltd.
0680 (ethylene -α-olefin copolymer (alpha-olefin: propylene) Density 0.870 g / cm 3), Showa Denko KK Shaw Rex S6006M (high-density polyethylene, density 0.957 g / cm 3), Nippon Precision 125 paraffin products (melting point: 52 ° C.) manufactured by Wax Co., Ltd. and calcium chloride hydrate salt are melt-mixed and then poured into a mold to be molded to prepare a cylindrical melt mixture (φ50 mm × 15 mm) 1a, As in 2, a heat storage body 11 was obtained by hermetically packaging in a bag 2a made of a multilayer sheet of polyvinylidene chloride and polyethylene. Melt mix, by weight, Tuffmer P068
0 for 20 parts, Sholex S6006M for 10 parts, paraffin 125 products for 70 parts, calcium chloride hydrate salt for 5 parts
It was carried out at a ratio of 0 part.

【0017】実施例4で得られた蓄熱体を電子レンジ
(500W)を用いて高周波加熱を行った後、布製の袋
で包み、懐中で使用したところ、長時間温度を保持し良
好な性能を示した。また、この発明による携帯用カイロ
は、高周波加熱を行えば、何度でも繰り返し使用するこ
とができる。この発明の蓄熱体を食料品の保温に利用し
た場合の実施例を実施例5,6で示す。
The heat storage material obtained in Example 4 was subjected to high-frequency heating using a microwave oven (500 W), wrapped in a cloth bag, and used in a pocket to keep good temperature for a long time. Indicated. Further, the portable warmer according to the present invention can be repeatedly used any number of times if it is subjected to high frequency heating. Examples in which the heat accumulator according to the present invention is used to keep foods warm are shown in Examples 5 and 6.

【0018】−実施例5− 三井石油化学工業株式会社製のタフマーP0680(エ
チレン−αオレフィン共重合体(αオレフィン:プロピ
レン)、密度0.870g/cm3 )、昭和電工株式会社
製のショウレックスS6006M(高密度ポリエチレ
ン、密度0.957g/cm3 )、日本精蝋株式会社製の
パラフィン125品(融点52℃)と、塩化カルシウム
水和塩を溶融混合した後、図3にみるように、平板状
(幅50mm、長さ100mm、厚み5mm)に成形した溶融
混合物1bを作製し、ポリ塩化ビニリデンおよびポリエ
チレンの多層シートからなる袋2bで密封包装して蓄熱
体12を得た。溶融混合は、重量部で、タフマーP06
80を20部、ショウレックスS6006Mを10部、
パラフィン125品を70部、塩化カルシウム水和塩を
50部の割合で行った。
-Example 5-Tufmer P0680 (ethylene-α olefin copolymer (α olefin: propylene), density 0.870 g / cm 3 ) manufactured by Mitsui Petrochemical Co., Ltd., Showlex manufactured by Showa Denko KK After melting and mixing S6006M (high-density polyethylene, density 0.957 g / cm 3 ), paraffin 125 product (melting point 52 ° C.) manufactured by Nippon Seiro Co., Ltd. and calcium chloride hydrate salt, as shown in FIG. A molten mixture 1b molded into a flat plate shape (width 50 mm, length 100 mm, thickness 5 mm) was produced and hermetically packed in a bag 2b made of a multilayer sheet of polyvinylidene chloride and polyethylene to obtain a heat storage body 12. Melt mix, by weight, Tuffmer P06
20 copies of 80, 10 copies of Shorex S6006M,
70 parts of 125 paraffin products and 50 parts of calcium chloride hydrate were used.

【0019】実施例5で得られた蓄熱体12を図3のよ
うに容器3の底に敷いて、冷えたご飯4をのせた後、電
子レンジ(500W)を用いて高周波加熱を行った。ご
飯の加熱と同時に蓄熱体の蓄熱ができるため、この発明
の蓄熱体を使用しない場合に比較して、ご飯が冷えにく
いという特徴を示した。この発明の蓄熱体は、電子レン
ジ等を用い高周波加熱した後、ある程度の保温が必要な
食品、たとえば、コンビニエンスストアのお弁当、ある
いは、飛行機の機内食等に使用することができる。
The heat storage body 12 obtained in Example 5 was laid on the bottom of the container 3 as shown in FIG. 3, and the cooled rice 4 was placed thereon, and then high frequency heating was carried out using a microwave oven (500 W). Since the heat of the heat storage body can be stored at the same time as heating of the rice, it is difficult to cool the rice as compared with the case where the heat storage body of the present invention is not used. INDUSTRIAL APPLICABILITY The heat storage body of the present invention can be used for foods that need to be kept warm to some extent after being subjected to high-frequency heating using a microwave oven or the like, for example, lunch boxes at convenience stores or in-flight meals for airplanes.

【0020】また、この発明の蓄熱体は、高周波加熱を
行えは、何度でも繰り返し使用することができる。 −実施例6− 三井石油化学工業株式会社製のタフマーP0680(エ
チレン−αオレフィン共重合体(αオレフィン:プロピ
レン)、密度0.870g/cm3 )、昭和電工株式会社
製のショウレックスS6006M(高密度ポリエチレ
ン、密度0.957g/cm3 )、日本精蝋株式会社製の
パラフィン125品(融点52℃)と、塩化カルシウム
水和塩を溶融混合した後、図4のごとき皿状(直径15
0mm)に成形した溶融混合物1cを作製し、ポリ塩化ビ
ニリデンおよびポリエチレンの多層シートからなる袋2
cで密封包装して蓄熱体13を得た。この蓄熱体13の
下部にボール紙で作られた断熱材5を敷いた。溶融混合
は、重量部で、タフマーP0680を20部、ショウレ
ックスS6006Mを20部、パラフィン125品を7
0部、塩化カルシウム水和塩を50部の割合で行った。
Further, the heat storage body of the present invention can be used any number of times as long as it can perform high frequency heating. -Example 6-Mitsui Petrochemical Industrial Co., Ltd. Tuffmer P0680 (ethylene-α olefin copolymer (α olefin: propylene), density 0.870 g / cm 3 ), Showa Denko KK Showlex S6006M (high Density polyethylene, density 0.957 g / cm 3 ), paraffin 125 product (melting point 52 ° C.) manufactured by Nippon Seiro Co., Ltd., and calcium chloride hydrate salt were melt-mixed, and then dish-shaped (diameter 15
A bag 2 made of a multilayer sheet of polyvinylidene chloride and polyethylene is prepared by making a molten mixture 1c molded into 0 mm).
The heat storage body 13 was obtained by hermetically sealing with c. A heat insulating material 5 made of cardboard was laid under the heat storage body 13. Melt mixing is by weight, 20 parts Toughmer P0680, 20 parts Shorex S6006M and 7 parts 125 paraffin products.
0 parts and 50 parts of hydrated calcium chloride were used.

【0021】実施例6で得られた蓄熱体13に冷えたご
飯4をのせた後、電子レンジ(500W)を用いて高周
波加熱を行った。ご飯の加熱と同時に蓄熱体の蓄熱がで
きるため、通常の皿を使用した場合に比較して、ご飯が
冷えにくいという特徴を示した。この発明の蓄熱体は、
電子レンジ等を用い高周波加熱した後、ある程度の保温
が必要な食品、たとえば、コンビニエンスストアのお弁
当の容器、あるいは、飛行機の機内食の食器等に使用す
ることができる。
After the cooled rice 4 was placed on the heat storage body 13 obtained in Example 6, high frequency heating was performed using a microwave oven (500 W). Since the heat storage body can store heat at the same time as heating rice, it was difficult to cool the rice compared with the case of using a normal dish. The heat storage body of this invention is
After high-frequency heating using a microwave oven or the like, it can be used for foods that require a certain amount of heat retention, for example, containers for lunch boxes at convenience stores or tableware for in-flight meals on airplanes.

【0022】また、この発明の蓄熱体は、高周波加熱を
行えば何度でも繰り返し使用することができる。 −実施例7− 三井石油化学工業株式会社製のタフマーP0680(エ
チレン−αオレフィン共重合体(αオレフィン:プロピ
レン)、密度0.870g/cm3 )、昭和電工株式会社
製のショウレックスS6006M(高密度ポリエチレ
ン、密度0.957g/cm3 )と日本精蝋株式会社製の
パラフィン125品(融点52℃)を溶融混合した。溶
融混合は、重量部で、タフマーP0680を20部、シ
ョウレックスS6006Mを10部、パラフィン125
品を70部の割合で行った。このように作製した溶融混
合物1dで図5のごとく水和物6を包み蓄熱体14とし
た。
Further, the heat storage body of the present invention can be repeatedly used any number of times by performing high frequency heating. -Example 7-Mitsui Petrochemical Industrial Co., Ltd. Tuffmer P0680 (ethylene-α olefin copolymer (α olefin: propylene), density 0.870 g / cm 3 ), Showa Denko KK Showlex S6006M (high Density polyethylene, density 0.957 g / cm 3 ) and 125 paraffin products (melting point 52 ° C.) manufactured by Nippon Seiro Co., Ltd. were melt mixed. The melt mixing is 20 parts by weight of Toughmer P0680, 10 parts of Shorex S6006M, 125 parts of paraffin by weight.
The product was made in a ratio of 70 parts. The molten mixture 1d thus produced was wrapped with the hydrate 6 as shown in FIG.

【0023】実施例7の蓄熱体を電子レンジ(500
W)を用いて高周波加熱を行ったところ、容易に加熱で
き蓄熱することができた。 −比較例3− 実施例1において、スミカセン−L GZ801の代わりに東
ソー株式会社製のエチレン−αオレフィン共重合体(α
オレフィンはヘキセン−1である。密度0.930g/
cm3 。商品名ZF150−1)を用いたこと以外は実施
例1と同様にして蓄熱体を得た。
The heat accumulator of Example 7 was replaced with a microwave oven (500
When high frequency heating was performed using W), it was possible to easily heat and store heat. -Comparative Example 3-In Example 1, instead of Sumikasen-L GZ801, an ethylene-α olefin copolymer (α
The olefin is hexene-1. Density 0.930g /
cm 3 . A heat storage material was obtained in the same manner as in Example 1 except that the trade name ZF150-1) was used.

【0024】この蓄熱体は、パラフィンの染み出し量が
大きいという問題があった。なお、図2〜4において、
6は溶融混合物中に分散されている水和物である。 −比較例4− 実施例1において、塩化カルシウム水和塩の代わりに塩
化カルシウム(結晶水をなくしたもの)を用いたこと以
外は実施例1と同様にして蓄熱体を得た。
This heat storage material has a problem that the amount of paraffin oozing out is large. In addition, in FIGS.
6 is a hydrate dispersed in the molten mixture. -Comparative Example 4-A heat storage body was obtained in the same manner as in Example 1 except that calcium chloride (without crystal water) was used in place of the hydrated calcium chloride salt.

【0025】この蓄熱体は、高周波加熱できないという
問題があった。
This heat storage body has a problem that it cannot be heated at high frequency.

【0026】[0026]

【発明の効果】結晶水を有する水和物をエチレン−αオ
レフィン共重合体と結晶性有機化合物の溶融混合物中に
含ませることで、電子レンジ等を用いて蓄熱体を高周波
加熱することができるようになった。
EFFECTS OF THE INVENTION By incorporating a hydrate having water of crystallization into a molten mixture of an ethylene-α-olefin copolymer and a crystalline organic compound, the regenerator can be heated at a high frequency using a microwave oven or the like. It became so.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明の蓄熱体の1実施例の概略を表す斜視
図である。
FIG. 1 is a perspective view schematically showing one embodiment of a heat storage body of the present invention.

【図2】この発明の蓄熱体の別の1実施例を模式的に表
す断面図である。
FIG. 2 is a sectional view schematically showing another embodiment of the heat storage body of the present invention.

【図3】この発明の蓄熱体の別の1実施例を模式的に表
す断面図である。
FIG. 3 is a cross-sectional view schematically showing another embodiment of the heat storage body of the present invention.

【図4】この発明の蓄熱体の別の1実施例を模式的に表
す断面図である。
FIG. 4 is a sectional view schematically showing another embodiment of the heat storage body of the present invention.

【図5】この発明の蓄熱体の別の1実施例を模式的に表
す断面図である。
FIG. 5 is a sectional view schematically showing another embodiment of the heat storage body of the present invention.

【符号の説明】[Explanation of symbols]

1 円柱状蓄熱体 1a 円柱状の溶融混合物 1b 平板状の溶融混合物 1c 皿状の溶融混合物 1d 溶融混合物 2a 袋 2b 袋 2c 袋 6 水和物 11 蓄熱体 12 蓄熱体 13 蓄熱体 14 蓄熱体 DESCRIPTION OF SYMBOLS 1 Cylindrical heat storage body 1a Cylindrical molten mixture 1b Flat plate molten mixture 1c Dish-shaped molten mixture 1d Melted mixture 2a Bag 2b Bag 2c Bag 6 Hydrate 11 Heat storage body 12 Heat storage body 13 Heat storage body 14 Heat storage body

───────────────────────────────────────────────────── フロントページの続き (72)発明者 鶴来 充啓 大阪府門真市大字門真1048番地松下電工株 式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuhiro Tsurugi 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd.

Claims (1)

【特許請求の範囲】 【請求項1】 密度0.925g/cm3 未満のエチレン
−αオレフィン共重合体と結晶性有機化合物の溶融混合
物中に結晶水を含む水和物が含まれている蓄熱体。
Claims: 1. A heat storage device comprising a hydrate containing water of crystallization in a molten mixture of an ethylene-α-olefin copolymer having a density of less than 0.925 g / cm 3 and a crystalline organic compound. body.
JP3153532A 1991-06-25 1991-06-25 Heat storage Expired - Lifetime JP2548850B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3153532A JP2548850B2 (en) 1991-06-25 1991-06-25 Heat storage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3153532A JP2548850B2 (en) 1991-06-25 1991-06-25 Heat storage

Publications (2)

Publication Number Publication Date
JPH051282A true JPH051282A (en) 1993-01-08
JP2548850B2 JP2548850B2 (en) 1996-10-30

Family

ID=15564584

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995008600A1 (en) * 1993-09-25 1995-03-30 Rtm Research & Development Pty. Ltd. Heating device
JPH08291914A (en) * 1995-04-20 1996-11-05 Fujitsu Ltd Heating control system for microwave oven
JP2001348567A (en) * 2000-06-08 2001-12-18 Mitsubishi Gas Chem Co Inc Heat storage material
WO2004061044A1 (en) * 2003-01-02 2004-07-22 Rubitherm Gmbh Phase change temperature controlling material and method for the production thereof
US10119057B2 (en) * 2012-01-03 2018-11-06 Phase Change Energy Solutions, Inc. Compositions comprising phase change materials and methods of making the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101219897B1 (en) 2005-01-27 2013-01-09 에스케 카켄 가부시키가이샤 Composition for heat-storage object formation, heat-storage object, and process for producing heat-storage object

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5740583A (en) * 1980-08-21 1982-03-06 Matsushita Electric Ind Co Ltd Regenerating material
JPS62187782A (en) * 1985-11-22 1987-08-17 ユニバーシティー・オブ・デイトン Polyolefin composition containing phase change material, heat energy storing material and manufacture of polyolefin composition

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5740583A (en) * 1980-08-21 1982-03-06 Matsushita Electric Ind Co Ltd Regenerating material
JPS62187782A (en) * 1985-11-22 1987-08-17 ユニバーシティー・オブ・デイトン Polyolefin composition containing phase change material, heat energy storing material and manufacture of polyolefin composition

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995008600A1 (en) * 1993-09-25 1995-03-30 Rtm Research & Development Pty. Ltd. Heating device
JPH08291914A (en) * 1995-04-20 1996-11-05 Fujitsu Ltd Heating control system for microwave oven
JP2001348567A (en) * 2000-06-08 2001-12-18 Mitsubishi Gas Chem Co Inc Heat storage material
WO2004061044A1 (en) * 2003-01-02 2004-07-22 Rubitherm Gmbh Phase change temperature controlling material and method for the production thereof
US10119057B2 (en) * 2012-01-03 2018-11-06 Phase Change Energy Solutions, Inc. Compositions comprising phase change materials and methods of making the same

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