JPS6369840A - Production of heat insulating box body - Google Patents
Production of heat insulating box bodyInfo
- Publication number
- JPS6369840A JPS6369840A JP61214418A JP21441886A JPS6369840A JP S6369840 A JPS6369840 A JP S6369840A JP 61214418 A JP61214418 A JP 61214418A JP 21441886 A JP21441886 A JP 21441886A JP S6369840 A JPS6369840 A JP S6369840A
- Authority
- JP
- Japan
- Prior art keywords
- heat insulating
- insulating box
- box
- box body
- ether type
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000006260 foam Substances 0.000 claims abstract description 17
- 125000001743 benzylic group Chemical group 0.000 claims abstract description 10
- 239000005011 phenolic resin Substances 0.000 claims abstract description 10
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 7
- JLGADZLAECENGR-UHFFFAOYSA-N 1,1-dibromo-1,2,2,2-tetrafluoroethane Chemical compound FC(F)(F)C(F)(Br)Br JLGADZLAECENGR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000003054 catalyst Substances 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000003381 stabilizer Substances 0.000 claims abstract description 5
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 4
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims description 12
- 239000004088 foaming agent Substances 0.000 claims description 3
- 238000005187 foaming Methods 0.000 abstract description 10
- 238000011065 in-situ storage Methods 0.000 abstract 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 7
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000004604 Blowing Agent Substances 0.000 description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 5
- 239000011810 insulating material Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 3
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- KVBKAPANDHPRDG-UHFFFAOYSA-N dibromotetrafluoroethane Chemical compound FC(F)(Br)C(F)(F)Br KVBKAPANDHPRDG-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- WDPYDDUVWLUIDM-UHFFFAOYSA-N ethyl carbamate;phenol Chemical compound CCOC(N)=O.OC1=CC=CC=C1 WDPYDDUVWLUIDM-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Landscapes
- Refrigerator Housings (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、冷蔵庫、冷凍庫等に利用する断熱箱体の製造
方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method of manufacturing a heat insulating box for use in refrigerators, freezers, etc.
従来の技術
ベンジリックエーテル型フェノール樹脂を水酸基成分と
し、有機ポリイソシアネート、触媒、整泡剤１発泡剤と
を混合し、発泡して得られるフェノール、ウレタンフオ
ームは、ポリオキシアルギレンポリオールを水酸基成分
とするポリウレタンフォームに比べ、樹脂固体熱伝導率
が小さく、フ２７、−。Conventional technology A phenol or urethane foam obtained by mixing a benzylic ether type phenol resin with a hydroxyl group component, an organic polyisocyanate, a catalyst, a foam stabilizer and a foaming agent, and foaming the mixture is a hydroxyl group component of a polyoxyargylene polyol. Compared to polyurethane foam, the solid thermal conductivity of the resin is low.
オームの断熱性能が良くなる優れた特徴を有している。It has excellent properties that improve ohmic insulation performance.
発明が解決しようとする問題点
しかしながら、ベンジリックエーテル型フェノール樹脂
は、製造工程上、原料のフェノールが１００％反応せず
、未反応のフェノール分子が、製品原料に残る場合があ
り、有機ポリイソシアネートと反応させると、選択的に
分子量が小さく活性の高いフェノール分子が反応し、極
めて初期反応の速い反応形態をとる。よって、このよう
な原料を流動空間が狭く、又、流動距離の長い冷蔵庫等
の断熱箱体に注入し、一体発泡を行なうと種々の問題が
発生する。例えば、第３図で説明すると、１は断熱箱体
で内箱２、外箱３、と一体発泡になる発泡断熱材４から
成っており、内箱２と外箱３はあらかじめフランジ５で
接合し形成している。Problems to be Solved by the Invention However, in the production process of benzylic ether type phenolic resin, 100% of the raw phenol does not react, and unreacted phenol molecules may remain in the product raw material. When reacted with, phenol molecules with small molecular weight and high activity react selectively, resulting in an extremely fast initial reaction. Therefore, if such raw materials are poured into an insulating box such as a refrigerator, which has a narrow flow space and a long flow distance, and are subjected to integral foaming, various problems occur. For example, referring to Fig. 3, 1 is a heat insulating box body, which is made up of an inner box 2, an outer box 3, and a foamed heat insulating material 4 that is integrally foamed, and the inner box 2 and outer box 3 are joined in advance with a flange 5. It is forming.
６は外箱３の背面７に設けられた注入口であり、ベンジ
リックエーテル型フェノール樹脂（水酸基価３９０ＱＫ
ＯＨ／９’）、り＃−）”ＭＤＩ（商品名ミリオネー）
ＭＲ，日本ポリウレタン社製）を主原料３ ヘ−７
とし、触媒、整泡剤９発泡剤（フロ７−１１）を混合し
た原料を発泡機８で混合し、注入口６よりフランジ６に
向って吐出する。フランジ５に落下した原料は、含有し
たフェノール分子とクルードＭＤＩの反応により、直ち
に泡化し、内箱２と外箱３間を泡状の流動し充填を開始
する。しかしながら、高粘度の泡状の流動でフランジ６
の落下点から断熱箱体１全体に充填することは、面材と
のを損ねる問題があった。6 is an injection port provided on the back surface 7 of the outer box 3, and is made of benzylic ether type phenol resin (hydroxyl value 390QK).
OH/9'), ri#-)"MDI (product name Millione)
MR, manufactured by Nippon Polyurethane Co., Ltd.) as the main raw material 3, a catalyst, a foam stabilizer, 9 blowing agents (Flo 7-11) are mixed in a foaming machine 8, and the mixture is poured into the flange 6 from the injection port 6. Dispense. The raw material that has fallen onto the flange 5 is immediately foamed by the reaction between the contained phenol molecules and the crude MDI, flows between the inner box 2 and the outer box 3 in a foamy state, and starts filling. However, due to the high viscosity foam flow, the flange 6
There was a problem in filling the entire insulating box 1 from the falling point of the insulating material, which would damage the contact with the face material.
問題点を解決するだめの手段
本発明は、」二記問題点を解決するために発泡剤として
フロン−１１４ｂ２（ジブロモテトラフルオロエタン）
を用いるものである。Means for Solving the Problems The present invention uses Freon-114b2 (dibromotetrafluoroethane) as a blowing agent to solve the problems mentioned in section 2.
is used.
作 用
上記構成によって、ベンジリックエーテル型フェノール
樹脂に含まれるフェノール分子と有機ポリイン／アネー
トとの反応による反応熱が急」二昇しても発泡剤の沸点
がＲ−１１に比べ約２４°Ｃ高い４７°Ｃのため、急激
な初期泡化が遅れ、原料を断熱箱体に注入しても、７ラ
ンジの落下点で泡化せず、液状でフランジを流れ、全体
に拡散する。Effect With the above structure, even if the reaction heat due to the reaction between the phenol molecules contained in the benzylic ether type phenolic resin and the organic polyin/anate rises rapidly, the boiling point of the blowing agent remains approximately 24°C compared to R-11. Due to the high temperature of 47°C, rapid initial foaming is delayed, and even when the raw material is injected into the insulated box, it does not foam at the drop point of the 7-lunge, but flows through the flange in liquid form and spreads throughout.
この後、泡化しても高粘度の泡状で流れる流動距離は短
かく、面材との流動抵抗も小さく、優れた充填性を示す
のである。After this, even if it foams, it flows in a highly viscous foam over a short flow distance, has low flow resistance with the face material, and exhibits excellent filling properties.
実施例
以下、実施例を挙げて本発明の断熱箱体を第１図、第２
図に基づいて説明する。Examples Below, examples will be given to illustrate the heat insulating box of the present invention in Figures 1 and 2.
This will be explained based on the diagram.
図において、１は断熱箱体で、内箱２．外箱３と下表に
示す原料と配合部数を用いて発泡機９で注入充填した断
熱材４′から成っている。In the figure, 1 is a heat insulating box body, inner box 2. It consists of an outer box 3 and a heat insulating material 4' which is injected and filled in a foaming machine 9 using the raw materials and the number of parts shown in the table below.
表において、ベンジリックエーテル型フェノール樹脂は
、水酸基価３９０〜ＫＯＨ／ｆのものを使用した。整泡
剤は、信越化学■製のシリコーン界面活性剤Ｆ−３３５
、触媒は花王■製カオーライザ７６、１を用い、発泡剤
は、ダイキン−製ダイフロン−１１４ｂ２（ジブロモテ
トラフルオロエタン）である。有機ポリイソシアネート
は、クルードＭＤＩで、日本ポリウレタン■製ミリオネ
ート５ ヘ一／
ＭＲを用いた。このような原料を発泡機９で混合し、注
入口６よりフランジ５に向けて注入を行ない、内箱２と
外箱３を一体発泡により充填を行なった。なお、このと
きの断熱材４′のフリブローフオームの反応性、密度、
及び断熱材４′の代表的な部分の密度と熱伝導率を表に
示した。なお、熱伝導率は、平均温度２４°Ｃの条件で
真空理工社製に−Ｍａｊｉｃを用いて測定した。又、参
考例としてフロン−１１を発泡剤としたときのデーター
も記載した。In the table, the benzylic ether type phenol resin used had a hydroxyl value of 390 to KOH/f. The foam stabilizer is silicone surfactant F-335 manufactured by Shin-Etsu Chemical ■.
The catalyst used was Kaolizer 76.1 manufactured by Kao Corporation, and the blowing agent was Daiflon-114b2 (dibromotetrafluoroethane) manufactured by Daikin. The organic polyisocyanate used was crude MDI, Millionate 5 H1/MR manufactured by Nippon Polyurethane. These raw materials were mixed in a foaming machine 9 and injected from the injection port 6 toward the flange 5 to fill the inner box 2 and outer box 3 by integral foaming. At this time, the reactivity, density, and
The table also shows the density and thermal conductivity of representative parts of the heat insulating material 4'. The thermal conductivity was measured using -Majic manufactured by Shinku Riko Co., Ltd. at an average temperature of 24°C. Furthermore, as a reference example, data when Freon-11 was used as a foaming agent was also described.
このように、ベンジリックエーテル型フェノール樹脂を
水酸基側成分として用いる場合、残存フェノール分子の
影響による初期の急激な反応による泡化も、沸点がフロ
ン−１１に比べ約２４°Ｃ高いフロン−１１４ｂ２を用
いることにより、泡化が遅れ、液状で溜まる時間が長く
なる。このため、注入口６より７ランジ６に向けて注入
しても、ただちに泡化せず、液状で７ランジ６を流動し
、全体に均一に拡散した後、泡化し立上る。よって、高
粘度の泡流動で充填する距離は短かく、面材との抵抗を
受けに＜＜、優れた充填性を示すのである。この結果、
均一な断熱材４′の密度分布が得られ、注入量の低減合
理化が図れると共に、熱伝導率も乱流状態で充填するこ
とがないため気泡の配向が均一で、優れた性能を発揮す
るので断熱箱体１としての性能、品質の向上に富力する
のである。In this way, when benzylic ether type phenolic resin is used as the hydroxyl side component, foaming due to the initial rapid reaction due to the influence of residual phenol molecules can be avoided by using Freon-114b2, which has a boiling point approximately 24°C higher than Freon-11. By using it, foaming is delayed and the time it takes to stay in liquid form becomes longer. Therefore, even if it is injected from the injection port 6 toward the 7-lunge 6, it does not foam immediately, but flows through the 7-lunge 6 in liquid form, and after being uniformly diffused throughout, it foams and rises. Therefore, the distance to be filled with the highly viscous foam flow is short, and due to the resistance from the facing material, it exhibits excellent filling properties. As a result,
A uniform density distribution of the heat insulating material 4' can be obtained, and the amount of injection can be reduced and rationalized, and the thermal conductivity is not filled in a turbulent state, so the bubble orientation is uniform and excellent performance is achieved. This will greatly improve the performance and quality of the heat insulating box 1.
発明の効果
本発明は、上記の説明からも明らかなように、以下に示
すような効果が得られるのである。すなわち、ベンジリ
ックエーテル型フェノール樹脂を主原料とするフェノー
ル・ウレタンフ］−ムにおいて、発泡剤としてフロン−
１１４ｂ２（ジブロモテトラフルオロエタン）を用いる
と断熱箱体の一体発泡を行なうと、注入原料を外箱と内
箱の当接部である７ランジに沿って液状で流動拡散させ
ることができ、この後、泡化し高粘度の泡状で流動して
も、流動距離が短かく断熱箱体の面材との流動抵抗を受
けにくい充填が可能となる。この結果、優れた充填性に
より、均一な密度分布が得られるため、注入量の低減合
理化が図れると共に、乱流状態で充填しないために気泡
の配向が均一で、熱伝導率も良好な断熱材が得られ、品
質の高い断熱箱体が提供できるのである。Effects of the Invention As is clear from the above description, the present invention provides the following effects. That is, in phenol urethane foams whose main raw material is benzylic ether type phenolic resin, chlorofluorocarbons are used as blowing agents.
When 114b2 (dibromotetrafluoroethane) is used to integrally foam the insulating box, the injection raw material can be flowed and diffused in liquid form along the 7 flanges that are the abutment area between the outer box and the inner box. Even if it foams and flows in the form of a highly viscous foam, the flow distance is short, making it possible to fill the material with less flow resistance from the face material of the insulating box. As a result, a uniform density distribution is obtained due to excellent filling properties, which makes it possible to reduce and rationalize the amount of injection.Since the filling is not carried out in a turbulent state, the bubbles are evenly oriented, and the insulation material has good thermal conductivity. This makes it possible to provide a high-quality insulated box.
第１図は本発明の一実施例における断熱箱体の一部切欠
いた斜視図、第２図は原料注入直後の断熱箱体の内箱と
外箱間の断熱壁部分で切断した縦断面図、第３図は従来
例の原料注入直後の内箱と外箱間の断熱壁部分で切断し
た断熱箱体の断面図である。
Ａ−７
１・・・・・・断熱箱体、２・・・・・・内箱、３・・
・・・・外箱、４′・・・・・・断熱材。Fig. 1 is a partially cutaway perspective view of a heat insulating box according to an embodiment of the present invention, and Fig. 2 is a longitudinal sectional view taken at the heat insulating wall portion between the inner box and the outer box of the heat insulating box immediately after raw materials are injected. , FIG. 3 is a cross-sectional view of a conventional heat-insulating box cut at a heat-insulating wall portion between an inner box and an outer box immediately after raw materials are injected. A-7 1... Insulated box body, 2... Inner box, 3...
...Outer box, 4'...Insulation material.
Claims (1)
シアネート、触媒、整泡剤とフロン−１１４ｂ２（ジブ
ロモテトラフルオロエタン）を発泡剤とする原料を混合
し、内箱と外箱間に注入して現場一体発泡した断熱箱体
の製造方法。Raw materials including benzylic ether type phenolic resin, organic polyisocyanate, catalyst, foam stabilizer, and Freon-114b2 (dibromotetrafluoroethane) as a foaming agent were mixed, and the mixture was injected between the inner box and the outer box and foamed on-site. A method of manufacturing an insulating box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61214418A JPS6369840A (en) | 1986-09-11 | 1986-09-11 | Production of heat insulating box body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61214418A JPS6369840A (en) | 1986-09-11 | 1986-09-11 | Production of heat insulating box body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6369840A true JPS6369840A (en) | 1988-03-29 |
Family
ID=16655458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61214418A Pending JPS6369840A (en) | 1986-09-11 | 1986-09-11 | Production of heat insulating box body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6369840A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4939955A (en) * | 1987-07-28 | 1990-07-10 | Nissan Motor Co., Ltd. | Planetary gearing for automatic transmission |
-
1986
- 1986-09-11 JP JP61214418A patent/JPS6369840A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4939955A (en) * | 1987-07-28 | 1990-07-10 | Nissan Motor Co., Ltd. | Planetary gearing for automatic transmission |
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