Abstract: Vacuum insulator includes core member and jacket which covers core member. Jacket is decompressed its interior and core member includes a glass-fiber laminated unit. The glass fiber is formed of toughened glass-fiber which is low brittle and its fiber strength is toughened. This structure allows improving the heat insulating performance as well as lowering the material cost of vacuum insulator.

Abstract: A plurality of thin-wall parts (9a) of a sealant layer (7) are formed in a portion continuously changed in the interval of one sealing part (8) and a gas barrier layer (6) of other laminate film (4). At the inner circumferential side between the adjacent thin-wall parts (9a) and the thin-wall part (9a) at the innermost circumferential side and at the outer circumferential side of the thin-wall part (9a) of the outermost circumferential side, a thick-wall part (9b) of the sealant layer (7) is formed. All of the opposing sealant layers (7) between the two adjacent thin-wall parts (9a) are mutually heated and fused, so that an excellent adiabatic performance is maintained for a long period.

Abstract: A vacuum heat insulator small in limitation in shape of applicable objects, and wide in application is presented. A vacuum heat insulator is formed of a plurality of core members of thickness of 5 mm or less made of glass fiber shaped nearly in a regular octagonal shape, being coated with a gas barrier enveloping member and evacuated in side. The core members are shaped in octagon, and disposed in lattice layout at specified intervals so as to form folding lines in four directions of vertical, lateral and oblique 45-degree directions, parallel to each side. In order that the plurality of core members may be located in independent spaces individually, the entire surface of the enveloping member around the core members is formed as heat seal parts, and it is foldable in four directions and is flexible. By cutting the heat seal parts along the core members so as to leave about 3 mm in the periphery, a vacuum heat insulator of any desired shape and wide effective heat insulating area can be obtained.

Abstract: A plurality of thin-wall parts (9a) of a sealant layer (7) are formed in a portion continuously changed in the interval of one sealing part (8) and a gas barrier layer (6) of other laminate film (4). At the inner circumferential side between the adjacent thin-wall parts (9a) and the thin-wall part (9a) at the innermost circumferential side and at the outer circumferential side of the thin-wall part (9a) of the outermost circumferential side, a thick-wall part (9b) of the sealant layer (7) is formed. All of the opposing sealant layers (7) between the two adjacent thin-wall parts (9a) are mutually heated and fused, so that an excellent adiabatic performance is maintained for a long period.

Abstract: A vacuum heat insulator small in limitation in shape of applicable objects, and wide in application is presented. A vacuum heat insulator is formed of a plurality of core members of thickness of 5 mm or less made of glass fiber shaped nearly in a regular octagonal shape, being coated with a gas barrier enveloping member and evacuated in side. The core members are shaped in octagon, and disposed in lattice layout at specified intervals so as to form folding lines in four directions of vertical, lateral and oblique 45-degree directions, parallel to each side. In order that the plurality of core members may be located in independent spaces individually, the entire surface of the enveloping member around the core members is formed as heat seal parts, and it is foldable in four directions and is flexible. By cutting the heat seal parts along the core members so as to leave about 3 mm in the periphery, a vacuum heat insulator of any desired shape and wide effective heat insulating area can be obtained.

Abstract: A vacuum heat insulator small in limitation in shape of applicable objects, and wide in application is presented. A vacuum heat insulator is formed of a plurality of core members of thickness of 5 mm or less made of glass fiber shaped nearly in a regular octagonal shape, being coated with a gas barrier enveloping member and evacuated in side. The core members are shaped in octagon, and disposed in lattice layout at specified intervals so as to form folding lines in four directions of vertical, lateral and oblique 45-degree directions, parallel to each side. In order that the plurality of core members may be located in independent spaces individually, the entire surface of the enveloping member around the core members is formed as heat seal parts, and it is foldable in four directions and is flexible. By cutting the heat seal parts along the core members so as to leave about 3 mm in the periphery, a vacuum heat insulator of any desired shape and wide effective heat insulating area can be obtained.

Abstract: A vacuum heat insulation material has a covering material which is a lamination body including a sealant layer, a metal foil layer, a first plastic film layer, and a second plastic film layer which are laminated in this order from inside to outside via adhesive layers. When a foreign body is pierced into the vacuum heat insulation material, the propagation of breakage caused by the piercing is blocked somewhere inside the lamination body, thereby preventing the formation of through-pinholes. This results in the provision of a high-quality vacuum heat insulation material with excellent long-term insulation performance by using a covering material excellent in gas barrier properties and pinhole resistance to the piercing of minute foreign bodies.

Abstract: A vacuum heat insulator has a core formed of a glass fiber laminated body where glass fibers are laminated in the thickness direction, and an enveloping member that covers the core and has gas barrier property. The inside of the enveloping member is evacuated and the enveloping member is sealed. The core is pressurized and molded and the glass fibers are drawn by heat deformation of the glass fibers at a temperature at which the glass fibers start to slightly deform due to own weight of the glass fibers or a temperature at which the glass fibers become deformable due to a vertical load in pressing and the sectional shapes of the glass fibers do not significantly vary. Additionally, the shape of the core is kept by entanglement of parts of the glass fibers instead of binding of the glass fibers.

Abstract: Vacuum insulator includes core member and jacket which covers core member. Jacket is decompressed its interior and core member includes a glass-fiber laminated unit. The glass fiber is formed of reinforced glass-fiber which is low brittle and its fiber strength is reinforced. This structure allows improving the heat insulating performance as well as lowering the material cost of vacuum insulator.

Abstract: A vacuum heat insulation material has a covering material which is a lamination body including a sealant layer, a metal foil layer, a first plastic film layer, and a second plastic film layer which are laminated in this order from inside to outside via adhesive layers. When a foreign body is pierced into the vacuum heat insulation material, the propagation of breakage caused by the piercing is blocked somewhere inside the lamination body, thereby preventing the formation of through-pinholes. This results in the provision of a high-quality vacuum heat insulation material with excellent long-term insulation performance by using a covering material excellent in gas barrier properties and pinhole resistance to the piercing of minute foreign bodies.

Abstract: A vacuum heat insulator has a core formed of a glass fiber laminated body where glass fibers are laminated in the thickness direction, and an enveloping member that covers the core and has gas barrier property. The inside of the enveloping member is evacuated and the enveloping member is sealed. The core is pressurized and molded and the glass fibers are drawn by heat deformation of the glass fibers at a temperature at which the glass fibers start to slightly deform due to own weight of the glass fibers or a temperature at which the glass fibers become deformable due to a vertical load in pressing and the sectional shapes of the glass fibers do not significantly vary. Additionally, the shape of the core is kept by entanglement of parts of the glass fibers instead of binding of the glass fibers.

Abstract: A vacuum heat insulator small in limitation in shape of applicable objects, and wide in application is presented. A vacuum heat insulator is formed of a plurality of core members of thickness of 5 mm or less made of glass fiber shaped nearly in a regular octagonal shape, being coated with a gas barrier enveloping member and evacuated in side. The core members are shaped in octagon, and disposed in lattice layout at specified intervals so as to form folding lines in four directions of vertical, lateral and oblique 45-degree directions, parallel to each side. In order that the plurality of core members may be located in independent spaces individually, the entire surface of the enveloping member around the core members is formed as heat seal parts, and it is foldable in four directions and is flexible. By cutting the heat seal parts along the core members so as to leave about 3 mm in the periphery, a vacuum heat insulator of any desired shape and wide effective heat insulating area can be obtained.

Abstract: Vacuum heat insulator comprising a laminated core made of a plurality of sheets of inorganic fibers having 10 ?m or smaller in diameter and a certain composition including SiO2 as a main component, Al2O3, CaO, and MgO, a gas barrier enveloping member, and an absorbent. The vacuum heat insulator is characterized by having at least one groove formed therein after fabrication of the vacuum heat insulator. Further, the vacuum heat insulator is characterized by using inorganic fiber core of which a peak of distribution in fiber diameter lies between 1 ?m or smaller and 0.1 ?m or larger, and not containing binding material for binding the fiber material. Electronic apparatuses use the vacuum heat insulator. With use of the vacuum heat insulator, electronic and electric apparatuses superior in energy saving and not to present uncomfortable feeling to the user can be provided.

Abstract: Vacuum heat insulator comprising a laminated core made of a plurality of sheets of inorganic fibers having 10 &mgr;m or smaller in diameter and a certain composition including SiO2 as a main component, Al2O3, CaO, and MgO, a gas barrier enveloping member, and an absorbent. The vacuum heat insulator is characterized by having at least one groove formed therein after fabrication of the vacuum heat insulator. Further, the vacuum heat insulator is characterized by using inorganic fiber core of which a peak of distribution in fiber diameter lies between 1 &mgr;m or smaller and 0.1 &mgr;m or larger, and not containing binding material for binding the fiber material. Electronic apparatuses of the present invention use the vacuum heat insulator. With use of the vacuum heat insulator, electronic and electric apparatuses superior in energy saving and not to present uncomfortable feeling to the user can be provided.

Abstract: An insulated structure is formed by injection of a foamed thermal-insulating material created by foaming into a space between a plastic board and metal plate with a disposition of copper pipes. A non-halogenated organophosphorus compound having a molecular weight over 150 as an additive with an OH group as a functional group is mixed with the raw materials of the foamed thermal-insulating material including polyol, a foam stabilizer, a catalyst, a foaming agent having at least one component of hydrocarbon, and an organic polyisocyanates. By adding a non-halogenated organophosphorus compound, which has a molecular weight over 150 as an additive with an OH group as a functional group, the burning rate of the foamed thermal-insulating material becomes the same as that of the foamed thermal-insulating material which uses CFC11 as a foaming agent.

Abstract: An insulated structure is formed by injection of a foamed thermal-insulating material created by foaming into a space between a plastic board and metal plate with a disposition of copper pipes. A non-halogenated organophosphorus compound having a molecular weight over 150 as an additive with an OH group as a functional group is mixed with the raw materials of the foamed thermal-insulating material including polyol, a foam stabilizer, a catalyst, a foaming agent having at least one component of hydrocarbon, and an organic polyisocyanates. By adding a non-halogenated organophosphorus compound, which has a molecular weight over 150 as an additive with an OH group as a functional group, the burning rate of the foamed thermal-insulating material becomes the same as that of the foamed thermal-insulating material which uses CFC11 as a foaming agent.

Abstract: A thermal insulating foamed material is a polyurethane foam having closed cells, and produced by mixing, agitating and foaming a polyol, a polyisocyanate, a foam stabilizer, a catalyst, a blowing agent and a carbon dioxide adsorbent. The carbon dioxide adsorbent is produced by mixing and granulating powders of at least one member of alkali metal hydroxides and alkaline-earth metal hydroxides and organic or inorganic powders having a water absorbing property and soaked with water in advance, and formed by a resin film, such as a methacrylic acid ester, which is permeable to carbon dioxide but hardly permeable to water.

Abstract: A thermal insulating foamed material is a polyurethane foam having closed cells, and produced by mixing, agitating and foaming a polyol, a polyisocyanate, a foam stabilizer, a catalyst, a blowing agent and a carbon dioxide adsorbent. The carbon dioxide adsorbent is produced by mixing and granulating powders of at least one member of alkali metal hydroxides and alkaline-earth metal hydroxides and organic or inorganic powders having a water absorbing property and soaked with water in advance, and formed by a resin film, such as a methacrylic acid ester, which is permeable to carbon dioxide but hardly permeable to water.

Abstract: There are disclosed a thermal insulating foamed material, which is superior in thermal insulating property and does not cause deterioration of the thermal insulating property with a time lapse, and a method for producing the same. According to a method for producing a thermal insulating foamed material, a foamed polyurethane resin composition having closed cells, in which at least carbon dioxide is filled, is formed by blowing a raw material mixture containing epoxides comprising at least two members of an epoxide compound having high reactivity with carbon dioxide and an epoxide compound having low reactivity with carbon dioxide, a carbon dioxide fixation catalyst, polyisocyanate, a reactive blowing agent which evolves carbon dioxide by reacting with said polyisocyanate, and a polyol composition. Then, the carbon dioxide in the closed cells is allowed to react with the epoxides in the presence of the carbon dioxide fixation catalyst, thereby to fix carbon dioxide as carbonate compounds.

Abstract: The present invention provides a thermal insulating foamed material with excellent thermal insulating properties and a method of manufacturing the same. The method comprises the steps of: concurrently mixing and blowing a polyurethane material to produce a foamed polyurethane resin composition with a multiplicity of closed cells, the polyurethane material including a reactive blowing agent, a volatile compound having a boiling point of not higher than 150.degree. C. and a molecular weight of not less than 70, an epoxy compound, and a carbon dioxide fixation catalyst, wherein the closed cells are filled with the volatile compound and carbon dioxide produced by a reaction of the reactive blowing agent with a polyisocyanate; and allowing the carbon dioxide to chemically react with epoxy groups of the epoxy compound in the presence of the carbon dioxide fixation catalyst to form a solid or liquid cyclic carbonate.