WO2013190348A1 - Vacuum heat insulation panel - Google Patents

Vacuum heat insulation panel Download PDF

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Publication number
WO2013190348A1
WO2013190348A1 PCT/IB2013/000795 IB2013000795W WO2013190348A1 WO 2013190348 A1 WO2013190348 A1 WO 2013190348A1 IB 2013000795 W IB2013000795 W IB 2013000795W WO 2013190348 A1 WO2013190348 A1 WO 2013190348A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
vapour
deposited film
insulation panel
layer
Prior art date
Application number
PCT/IB2013/000795
Other languages
French (fr)
Inventor
Seiichi KUBONIWA
Original Assignee
Mag-Isover K.K.
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 Mag-Isover K.K. filed Critical Mag-Isover K.K.
Publication of WO2013190348A1 publication Critical patent/WO2013190348A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/062—Walls defining a cabinet
    • F25D23/063—Walls defining a cabinet formed by an assembly of panels

Definitions

  • the present invention relates to a vacuum heat insulation panel having an improved gas barrier property.
  • a vacuum heat insulator in the case where a vacuum heat insulator is disposed inside a door or a wall of a refrigerator, or within a wall of a transporter vehicle or the like, in order to prevent a vacuum state from being destroyed by an external factor and be able to keep the vacuum state over a long period of time, a core is put into an envelope composed of an outer covering member obtained by laminating a plurality of layers, then inside of the vacuum heat insulator is vacuumed, and then the envelope is sealed by heating and fusing an opening portion of the envelope.
  • the innermost layer is a heat-seal layer, and several layers such as a protective layer and a barrier layer composed of a metal vapour-deposited film are laminated on the outer side of the heat-seal layer.
  • a protective layer and a barrier layer composed of a metal vapour-deposited film are laminated on the outer side of the heat-seal layer.
  • JP 2012-026512 A describes an outer covering member in which a barrier layer, an inner protective layer, and an outer protective layer are laminated in order on the outer side of a heat-seal layer.
  • JP 11-201377 A describes a structure in which a film is further provided on the outer side of a vacuum heat insulation panel to protect the vacuum heat insulation panel from external factors.
  • A) describes a structure in which a seal portion is heat-sealed and then second heat sealing is conducted on its outer side to reinforce the heat-sealed portion.
  • FIG. 3 is an enlarged cross-sectional view of a seal portion of a vacuum heat insulation panel according to the related art such as described in JP 2012-026512 A, JP 11 -201377 A, or JP 11 -210983 A.
  • An edge surface of the seal portion is composed of a heat-seal layer 101, a barrier layer 102, a protective layer 103, an adhesive layer formed between the heat-seal layer 101 and the barrier layer 102, and an adhesive layer formed between the barrier layer 102 and the protective layer 103.
  • the heat-seal layer 101, the barrier layer 102 and the protective layer 103 constitute an outer covering member. These layers are projected in the amount of their thicknesses in a direction in which the vacuum heat insulation panel extends.
  • the heat-seal layer 101 is exposed to the atmosphere by its thickness, and thus there is the possibility that molecules of gas will enter a vacuum heat insulation panel through inside of the heat-seal layer 101. Furthermore, the heat-seal layer 101 and the barrier layer 102 are joined to each other via the adhesive layer formed therebetween, and there is a possibility that molecules of gas enter inside of the vacuum heat insulation panel through inside of the adhesive layer and then into inside of the heat-seal layer 101.
  • JP 2012-026512 A a thin portion is formed in the seal portion and the thickness of the heat-seal layer is made small to prevent entry of molecules of gas, but this is not sufficient.
  • a large amount of adsorbent for adsorbing molecules of gas needs to be put within the vacuum heat insulation panel, and this causes cost increase.
  • JP 11-201377 A and JP 11-210983 A also cannot effectively prevent entry of molecules of gas.
  • the present invention provides a vacuum heat insulation panel having an improved gas barrier property.
  • An aspect of the present invention relates to a vacuum heat insulation panel that includes a core and an outer covering member for hermitically covering an outside of the core to keep a vacuum state therein.
  • the outer covering member has a multilayer structure in which an innermost layer is a heat-seal layer.
  • a vapour-deposited film made of metal or silica is formed on at least one of an inner surface of the heat-seal layer and an outer surface of the heat-seal layer.
  • the metal may be aluminium.
  • the vapour-deposited film may be formed on the inner surface of the heat-seal layer and the outer surface of the heat-seal layer.
  • the vapour-deposited film may be formed on the inner surface of the heat-seal layer.
  • the vapour-deposited film on the outer surface of the heat-seal layer is able to prevent entry of gas through an adhesive layer between the heat-seal layer and a barrier layer, and the vapour-deposited film on the inner surface of the heat-seal layer is able to prevent entry of gas through not only the adhesive layer but also the heat-seal layer.
  • the thickness of the vapour-deposited film may be 1 to 500 ran. If the thickness of the vapour-deposited film is less than 1 ran, the gas barrier effect is insufficient; whereas, if the thickness of the vapour-deposited film is greater than 500 ran, there is a possibility that fusing of the heat-seal layers is influenced.
  • the thickness of the vapour-deposited film may be 1 to 300 ran.
  • the thickness of the vapour-deposited film may be 1 to 100 nm.
  • the thickness of the vapour-deposited film may be 1 to 50 nm.
  • the thickness of the heat-seal layer may be 10 to 100 ⁇ .
  • the melting temperature of the vapour-deposited film may be higher than that of the heat-seal layer by 100°C or higher.
  • FIG. 1 is a cross-sectional view of a seal portion of a vacuum heat insulation panel according to an embodiment of the present invention
  • FIG. 2 is a partially enlarged cross-sectional view of FIG. 1 ;
  • FIG. 3 is a cross-sectional view of a seal portion of a vacuum heat insulation panel according to the related art.
  • FIG, 1 is a cross-sectional view of a seal portion of a vacuum heat insulation panel according to the embodiment of the present invention.
  • a core 1 is hermetically covered with an outer covering member 2.
  • the core 1 is composed of a glass wool compact.
  • the glass wool compact has a three-dimensional skeleton structure in which intersection portions of fibers are bonded by an inorganic binder such as water glass.
  • the outer covering member 2 covers upper and lower surfaces of the core 1, and is heat-sealed at its periphery. Thus, the outer covering member 2 is formed into a hermetic bag shape.
  • FIG. 2 is a partially enlarged cross-sectional view of FIG. 1.
  • the outer covering member 2 has a multilayer structure in which a heat-seal layer 3, an adhesive layer 4, a barrier layer 5, an adhesive layer 6, a first protective layer 7, an adhesive layer 8, and a second protective layer 9 are laminated in order from the inner side.
  • the heat-seal layer 3 is made of a thermoplastic resin such as low-density polyethylene.
  • a vapour-deposited film 10 is formed on the inner surface and outer surface of the heat-seal layer 3.
  • the vapour-deposited film 10 is made of metal or silica and has an excellent gas barrier property.
  • the vapour-deposited film 10 is formed on both surfaces of the heat-seal layer 3, but the vapour-deposited film 10 may be formed on only one of both surfaces.
  • a metal vapour-deposited film aluminium may be used. Other metal may also be used.
  • the vapour-deposited film 10 may be formed on both the inner surface and outer surface of the heat-seal layer 3. Alternatively, the vapour-deposited film 10 may be formed on only the inner surface of the heat-seal layer 3.
  • the vapour-deposited films 10 formed on the inner surfaces of the heat-seal layers 3 overlap each other.
  • the thickness of the vapour-deposited film 10 is 1 to 500 nm, fusing of the heat-seal layers 3 is not influenced by the presence of the vapour-deposited films 10.
  • the vapour-deposited film 10 is designed to be thin as compared to the thickness of the heat-seal layer 3, the melted heat-seal layer 3 enters the gaps between the molecules that form the vapour-deposited film 10, and the molecules that form the heat-seal layer 3 are fused together.
  • the thickness of the vapour-deposited film 10 needs to be small.
  • the thickness of the vapour-deposited film 10 may be 1 to 300 nm, may be 1 to 100 nm, and further may be 1 to 50 nm.
  • the melting temperature of the vapour-deposited film 10 needs to be higher than that of the heat-seal layer 3. Actually, the melting temperature of the vapour-deposited film 10 may be higher than that of the heat-seal layer 3 by 100°C or higher.
  • the thickness of the heat-seal layer 3 is set to, for example, 10 to 100 ⁇ . If the heat-seal layer 3 is too thin, the bonding strength is poor; whereas, if the heat-seal layer 3 is too thick, the fusing time extends and the efficiency is deteriorated, and thus it is disadvantageous in terms of cost efficiency and workability.
  • the thickness of the heat-seal layer according to the present invention is not limited to this thickness.
  • a nylon film, a polyethylene film, a polyethylene terephthalate film, an ethylene vinyl alcohol copolymer (EVOH), a polyvinyl alcohol (PVOH), or the like may be used as the material of the heat-seal layer 3.
  • Aluminium foil or an aluminium vapour-deposited film may be used as the barrier layer 5.
  • a nylon film, a polyethylene terephthalate film, an ethylene vinyl alcohol copolymer (EVOH), a polyvinyl alcohol (PVOH), or the like may be used as each of the first protective layer 7 and the second protective layer 9.
  • the barrier layer according to the present invention is not limited to these films.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Insulation (AREA)
  • Laminated Bodies (AREA)

Abstract

An outer covering member is formed by laminating a heat-seal layer (3), an adhesive layer (4), a barrier layer (5), an adhesive layer (6), a first protective layer (7), an adhesive layer (8), and a second protective layer (9) in order from the inner side. A vapour-deposited film (10) is formed on an inner surface of the heat-seal layer (3) and an outer surface of the heat-seal layer (3). The vapour-deposited film (10) is made of metal or silica, and has an excellent gas barrier property.

Description

VACUUM HEAT INSULATION PANEL
BACKGROUND OF THE INVENTION
1. Field of the Invention
[0001] The present invention relates to a vacuum heat insulation panel having an improved gas barrier property.
2. Description of Related Art
[0002] In general, in the case where a vacuum heat insulator is disposed inside a door or a wall of a refrigerator, or within a wall of a transporter vehicle or the like, in order to prevent a vacuum state from being destroyed by an external factor and be able to keep the vacuum state over a long period of time, a core is put into an envelope composed of an outer covering member obtained by laminating a plurality of layers, then inside of the vacuum heat insulator is vacuumed, and then the envelope is sealed by heating and fusing an opening portion of the envelope.
[0003] In the outer covering member, the innermost layer is a heat-seal layer, and several layers such as a protective layer and a barrier layer composed of a metal vapour-deposited film are laminated on the outer side of the heat-seal layer. For example, Japanese Patent Application Publication No. 2012-026512 (JP 2012-026512 A) describes an outer covering member in which a barrier layer, an inner protective layer, and an outer protective layer are laminated in order on the outer side of a heat-seal layer.
[0004] In addition, Japanese Patent Application Publication No. 11-201377 (JP 11-201377 A) describes a structure in which a film is further provided on the outer side of a vacuum heat insulation panel to protect the vacuum heat insulation panel from external factors.
[0005] Japanese Patent Application Publication No. 11-210983 (JP 11-210983
A) describes a structure in which a seal portion is heat-sealed and then second heat sealing is conducted on its outer side to reinforce the heat-sealed portion.
[0006] FIG. 3 is an enlarged cross-sectional view of a seal portion of a vacuum heat insulation panel according to the related art such as described in JP 2012-026512 A, JP 11 -201377 A, or JP 11 -210983 A. An edge surface of the seal portion is composed of a heat-seal layer 101, a barrier layer 102, a protective layer 103, an adhesive layer formed between the heat-seal layer 101 and the barrier layer 102, and an adhesive layer formed between the barrier layer 102 and the protective layer 103. The heat-seal layer 101, the barrier layer 102 and the protective layer 103 constitute an outer covering member. These layers are projected in the amount of their thicknesses in a direction in which the vacuum heat insulation panel extends. The heat-seal layer 101 is exposed to the atmosphere by its thickness, and thus there is the possibility that molecules of gas will enter a vacuum heat insulation panel through inside of the heat-seal layer 101. Furthermore, the heat-seal layer 101 and the barrier layer 102 are joined to each other via the adhesive layer formed therebetween, and there is a possibility that molecules of gas enter inside of the vacuum heat insulation panel through inside of the adhesive layer and then into inside of the heat-seal layer 101.
[0007] For example, since the diameters of water molecules are about 3 angstroms, there is a possibility that water molecules easily enter inside of the vacuum heat insulation panel through the heat-seal layer or the adhesive layer between the heat-seal layer and the barrier layer to destroy the vacuum state.
[0008] In JP 2012-026512 A, a thin portion is formed in the seal portion and the thickness of the heat-seal layer is made small to prevent entry of molecules of gas, but this is not sufficient. In order to keep a sufficient vacuum state over a long period of time (for example, ten years or longer), a large amount of adsorbent for adsorbing molecules of gas needs to be put within the vacuum heat insulation panel, and this causes cost increase.
[0009] Similarly, the structures described in JP 11-201377 A and JP 11-210983 A also cannot effectively prevent entry of molecules of gas.
SUMMARY OF THE INVENTION
[0010] The present invention provides a vacuum heat insulation panel having an improved gas barrier property. [0011] An aspect of the present invention relates to a vacuum heat insulation panel that includes a core and an outer covering member for hermitically covering an outside of the core to keep a vacuum state therein. The outer covering member has a multilayer structure in which an innermost layer is a heat-seal layer. A vapour-deposited film made of metal or silica is formed on at least one of an inner surface of the heat-seal layer and an outer surface of the heat-seal layer.
[0012] In the above aspect, the metal may be aluminium.
[0013] In the above aspect, the vapour-deposited film may be formed on the inner surface of the heat-seal layer and the outer surface of the heat-seal layer.
[0014] In the above aspect, the vapour-deposited film may be formed on the inner surface of the heat-seal layer.
[0015] According to the above aspect, the vapour-deposited film on the outer surface of the heat-seal layer is able to prevent entry of gas through an adhesive layer between the heat-seal layer and a barrier layer, and the vapour-deposited film on the inner surface of the heat-seal layer is able to prevent entry of gas through not only the adhesive layer but also the heat-seal layer.
[0016] In the above aspect, the thickness of the vapour-deposited film may be 1 to 500 ran. If the thickness of the vapour-deposited film is less than 1 ran, the gas barrier effect is insufficient; whereas, if the thickness of the vapour-deposited film is greater than 500 ran, there is a possibility that fusing of the heat-seal layers is influenced.
[0017] In the above aspect, the thickness of the vapour-deposited film may be 1 to 300 ran.
[0018] In the above aspect, the thickness of the vapour-deposited film may be 1 to 100 nm.
[0019] In the above aspect, the thickness of the vapour-deposited film may be 1 to 50 nm.
[0020] In the above aspect, the thickness of the heat-seal layer may be 10 to 100 μηι.
[0021] In the above aspect, the melting temperature of the vapour-deposited film may be higher than that of the heat-seal layer by 100°C or higher.
[0022] According to the above aspect, it is possible to provide a vacuum heat insulation panel that is able to prevent gas from entering inside of the vacuum heat insulation panel through a seal portion, keep a vacuum state within the panel over a long period of time, and exert a heat insulating effect over a long period of time.
BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Features, advantages, and technical and industrial significance of exemplary embodiments of the invention will be described below with reference to the accompanying drawings, in which like numerals denote like elements, and wherein:
FIG. 1 is a cross-sectional view of a seal portion of a vacuum heat insulation panel according to an embodiment of the present invention;
FIG. 2 is a partially enlarged cross-sectional view of FIG. 1 ; and
FIG. 3 is a cross-sectional view of a seal portion of a vacuum heat insulation panel according to the related art.
DETAILED DESCRIPTION OF EMBODIMENTS
[0024] Hereinafter, an embodiment of the present invention will be described. FIG, 1 is a cross-sectional view of a seal portion of a vacuum heat insulation panel according to the embodiment of the present invention. In the vacuum heat insulation panel, a core 1 is hermetically covered with an outer covering member 2.
[0025] The core 1 is composed of a glass wool compact. The glass wool compact has a three-dimensional skeleton structure in which intersection portions of fibers are bonded by an inorganic binder such as water glass. The outer covering member 2 covers upper and lower surfaces of the core 1, and is heat-sealed at its periphery. Thus, the outer covering member 2 is formed into a hermetic bag shape.
[0026] FIG. 2 is a partially enlarged cross-sectional view of FIG. 1. The outer covering member 2 has a multilayer structure in which a heat-seal layer 3, an adhesive layer 4, a barrier layer 5, an adhesive layer 6, a first protective layer 7, an adhesive layer 8, and a second protective layer 9 are laminated in order from the inner side.
[0027] The heat-seal layer 3 is made of a thermoplastic resin such as low-density polyethylene. A vapour-deposited film 10 is formed on the inner surface and outer surface of the heat-seal layer 3. The vapour-deposited film 10 is made of metal or silica and has an excellent gas barrier property. In the illustrated example, the vapour-deposited film 10 is formed on both surfaces of the heat-seal layer 3, but the vapour-deposited film 10 may be formed on only one of both surfaces. As a metal vapour-deposited film, aluminium may be used. Other metal may also be used.
[0028] The vapour-deposited film 10 may be formed on both the inner surface and outer surface of the heat-seal layer 3. Alternatively, the vapour-deposited film 10 may be formed on only the inner surface of the heat-seal layer 3.
[0029] In a heat-sealed portion, the vapour-deposited films 10 formed on the inner surfaces of the heat-seal layers 3 overlap each other. However, since the thickness of the vapour-deposited film 10 is 1 to 500 nm, fusing of the heat-seal layers 3 is not influenced by the presence of the vapour-deposited films 10. In other words, since the vapour-deposited film 10 is designed to be thin as compared to the thickness of the heat-seal layer 3, the melted heat-seal layer 3 enters the gaps between the molecules that form the vapour-deposited film 10, and the molecules that form the heat-seal layer 3 are fused together. In addition, in order that the melted heat-seal layer 3 enters the vapour-deposited film 10, the thickness of the vapour-deposited film 10 needs to be small. The thickness of the vapour-deposited film 10 may be 1 to 300 nm, may be 1 to 100 nm, and further may be 1 to 50 nm.
[0030] The melting temperature of the vapour-deposited film 10 needs to be higher than that of the heat-seal layer 3. Actually, the melting temperature of the vapour-deposited film 10 may be higher than that of the heat-seal layer 3 by 100°C or higher.
[0031] The thickness of the heat-seal layer 3 is set to, for example, 10 to 100 μηι. If the heat-seal layer 3 is too thin, the bonding strength is poor; whereas, if the heat-seal layer 3 is too thick, the fusing time extends and the efficiency is deteriorated, and thus it is disadvantageous in terms of cost efficiency and workability. The thickness of the heat-seal layer according to the present invention is not limited to this thickness. In addition, a nylon film, a polyethylene film, a polyethylene terephthalate film, an ethylene vinyl alcohol copolymer (EVOH), a polyvinyl alcohol (PVOH), or the like may be used as the material of the heat-seal layer 3.
[0032] Aluminium foil or an aluminium vapour-deposited film may be used as the barrier layer 5. A nylon film, a polyethylene terephthalate film, an ethylene vinyl alcohol copolymer (EVOH), a polyvinyl alcohol (PVOH), or the like may be used as each of the first protective layer 7 and the second protective layer 9. The barrier layer according to the present invention is not limited to these films.

Claims

CLAIMS:
1. A vacuum heat insulation panel that includes a core (1) and an outer covering member (2) for hermitically covering an outside of the core (1) to keep a vacuum state therein, characterized in that
the outer covering member (2) has a multilayer structure in which an innermost layer is a heat-seal layer (3), and
a vapour-deposited film (10) made of metal or silica is formed on at least one of an inner surface of the heat-seal layer (3) and an outer surface of the heat-seal layer (3).
2. The vacuum heat insulation panel according to claim 1, wherein the metal is aluminium.
3. The vacuum heat insulation panel according to claim 1 or 2, wherein the vapour-deposited film (10) is formed on the inner surface of the heat-seal layer (3) and the outer surface of the heat-seal layer (3).
4. The vacuum heat insulation panel according to claim 1 or 2, wherein the vapour-deposited film (10) is formed on the inner surface of the heat-seal layer (3).
5. The vacuum heat insulation panel according to any one of claims 1 to 4, wherein the thickness of the vapour-deposited film (10) is 1 to 500 ran,
6. The vacuum heat insulation panel according to claim 5, wherein the thickness of the vapour-deposited film (10) is 1 to 300 nm
7. The vacuum heat insulation panel according to claim 6, wherein the thickness of the vapour-deposited film (10) is 1 to 100 nm.
8. The vacuum heat insulation panel according to claim 7, wherein the thickness of the vapour-deposited film (10) is 1 to 50 nm.
9. The vacuum heat insulation panel according to any one of claims 1 to 8, wherein the thickness of the heat-seal layer (3) is 10 to 100 μηι.
10. The vacuum heat insulation panel according to any one of claims 1 to 9, wherein the melting temperature of the vapour-deposited film (10) is higher than that of the heat-seal layer (3) by 100°C or higher.
PCT/IB2013/000795 2012-06-19 2013-04-30 Vacuum heat insulation panel WO2013190348A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-137876 2012-06-19
JP2012137876A JP5496264B2 (en) 2012-06-19 2012-06-19 Vacuum insulation panel

Publications (1)

Publication Number Publication Date
WO2013190348A1 true WO2013190348A1 (en) 2013-12-27

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PCT/IB2013/000795 WO2013190348A1 (en) 2012-06-19 2013-04-30 Vacuum heat insulation panel

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WO (1) WO2013190348A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29823140U1 (en) * 1997-12-31 1999-04-08 UVT GmbH, 74918 Angelbachtal Vacuum insulation panel
JPH11201377A (en) 1998-01-12 1999-07-30 Mitsubishi Electric Corp Vacuum heat insulating panel
JPH11210983A (en) 1998-01-20 1999-08-06 Mitsubishi Electric Corp Vacuum thermal insulating panel and its manufacture
JP2004130654A (en) * 2002-10-10 2004-04-30 Toppan Printing Co Ltd Vacuum heat insulating material
JP2006077799A (en) * 2004-09-07 2006-03-23 Toppan Printing Co Ltd Barrier property exterior material for vacuum heat insulating material, and vacuum heat insulating material
US20070152551A1 (en) * 2006-01-03 2007-07-05 Lg Electronics Inc. Fixing structure of insulation panel of prefabricated refrigerator and prefabricated refrigerator having the same
JP2010284855A (en) * 2009-06-11 2010-12-24 Dainippon Printing Co Ltd Gas barrier laminated film for vacuum heat insulating material, and vacuum heat insulating material
JP2012026512A (en) 2010-07-23 2012-02-09 Panasonic Corp Bag body and vacuum heat insulating material

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0882474A (en) * 1994-09-12 1996-03-26 Toshiba Corp Vacuum heat insulating material
JP2007224450A (en) * 2006-02-23 2007-09-06 Nisshinbo Ind Inc Clothing and headgear
JP2011005693A (en) * 2009-06-24 2011-01-13 Dainippon Printing Co Ltd Gas barrier laminated film for vacuum heat insulating material, and flame-retardant vacuum heat insulating material
JP2011190925A (en) * 2010-02-16 2011-09-29 Tokyo Electron Ltd Heat insulator and method of manufacturing the same

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29823140U1 (en) * 1997-12-31 1999-04-08 UVT GmbH, 74918 Angelbachtal Vacuum insulation panel
DE29823139U1 (en) * 1997-12-31 1999-07-29 UVT Umwelt- und Verfahrens-Technik GmbH, 74918 Angelbachtal Vacuum insulation panel
JPH11201377A (en) 1998-01-12 1999-07-30 Mitsubishi Electric Corp Vacuum heat insulating panel
JPH11210983A (en) 1998-01-20 1999-08-06 Mitsubishi Electric Corp Vacuum thermal insulating panel and its manufacture
JP2004130654A (en) * 2002-10-10 2004-04-30 Toppan Printing Co Ltd Vacuum heat insulating material
JP2006077799A (en) * 2004-09-07 2006-03-23 Toppan Printing Co Ltd Barrier property exterior material for vacuum heat insulating material, and vacuum heat insulating material
US20070152551A1 (en) * 2006-01-03 2007-07-05 Lg Electronics Inc. Fixing structure of insulation panel of prefabricated refrigerator and prefabricated refrigerator having the same
JP2010284855A (en) * 2009-06-11 2010-12-24 Dainippon Printing Co Ltd Gas barrier laminated film for vacuum heat insulating material, and vacuum heat insulating material
JP2012026512A (en) 2010-07-23 2012-02-09 Panasonic Corp Bag body and vacuum heat insulating material

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JP2014001810A (en) 2014-01-09
JP5496264B2 (en) 2014-05-21

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