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公开(公告)号：JPH11130888A
公开(公告)日：1999-05-18
申请号：JP30016197
申请日：1997-10-31
Applicant: MATSUSHITA REFRIGERATION
Inventor： TAKUSHIMA TSUKASA , TANIMOTO YASUAKI , AMAYOSHI TOMONAO , MIYAJI NORIYUKI
Abstract: PROBLEM TO BE SOLVED: To solve the problems of the decrease of the solid heat conductivity of an absorber itself and the increase of a cost for a raw material for the absorber that when designing to provide a vacuum insulator having no degradation over time, the absorber is required to be applied, and when a metal hydroxide is applied as the absorber for carbonic acid gas, water is produced in the time of the reaction of the metal hydroxide with the carbonic acid gas and new addition of the water absorber is required, thereby the efficiency is reduced, the capacity for absorbing the carbonic acid gas becomes insufficient and the addition amount of the absorber is increased. SOLUTION: This vacuum insulator capable of retarding the increase of the inner pressure of the vacuum insulator and hardly causing deterioration of insulation properties over time is obtained by applying an absorber 3 comprising a compound obtained by previously heating a dawsonite and a hydrotalcite at >=250 deg.C temperature to dislocate carbonate ion in a crystal lattice and a part or the whole of crystal water to the exterior of the crystal lattice and to form vacancies in the crystal lattice, to the vacuum insulator 1.
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公开(公告)号：JPH10219866A
公开(公告)日：1998-08-18
申请号：JP2020697
申请日：1997-02-03
Applicant: MATSUSHITA REFRIGERATION
Inventor： AMAYOSHI TOMONAO , TANIMOTO YASUAKI , MIYAJI NORIYUKI
Abstract: PROBLEM TO BE SOLVED: To reduce the thickness of a dwelling house wall so as to improve construction efficiency and heighten heat insulating performance of the whole heat insulating panel by covering plural vacuum heat insulating materials with an urethan resin composite which has a specified closed cell rate, and in which gas in a cell of the closed cell is carbon dioxide. SOLUTION: An urethane resin composition is foamed and filled in a space part formed by a face material 4 and a frame material 6 having a longitudinal material 7 to be taken as a first layer. Subsequently, plural vacuum heat insulators 3 are arranged on the first layer of urethane resin composition, urethane resin composition for the second layer is foamed and filled, and a face material 5 is also foamed in a body to manufacture a heat insulating panel 1. A foam heat insulating material 2 takes carbon dioxide generated by interaction of isocyanate and water as a foaming agent, and the foam heat insulating material 2 formed of foamed urethane resin composition has a closed cell percentage of 40-80% by an emulsifler. As the heat insulating panel 1 jointly uses the foam heat insulating material and the vacuum heat insulating material 3, it has excellent heat insulating performance, so that the wall thickness of the heat insulating panel 1 can be reduced so as to remarkably improve construction efficiency.
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公开(公告)号：JPH09303945A
公开(公告)日：1997-11-28
申请号：JP11454996
申请日：1996-05-09
Applicant: MATSUSHITA REFRIGERATION
Inventor： TANIMOTO YASUAKI , MIYAJI NORIYUKI
Abstract: PROBLEM TO BE SOLVED: To attain a light weight, low cost and high performance member by a method wherein a core material composed of an organic powder and a non-organic powder is filled in an outer cover member and a particle size distribution of a specified particle diameter in the organic powder filled in it is set to a specified volumetric rate. SOLUTION: After a core material attained by mixing an organic powder having a particle size distribution of 10% or more to 30% or less of volumetric ratio less than particle diameter of 200μm or less with a wet type silica powder is filled in an outer cover member 3 formed by a metal-plastic laminated film, its inner side is reduced in pressure to have a pressure value of 0.1μmHg and discharged so as to attain a vacuum heat insulating member. The vacuum heat insulating material in this way is made such that contact areas of powders themselves are reduced, resulting in that a solid thermal conductivity can be reduced, even if the material is used in a refrigerator for a long period of time, a rapid deterioration of the thermal conductivity of the vacuum heat insulating member is not produced and a high performance of the device can be attained.
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公开(公告)号：JPH06337094A
公开(公告)日：1994-12-06
申请号：JP12572293
申请日：1993-05-27
Applicant: MATSUSHITA REFRIGERATION
Inventor： TANIMOTO YASUAKI , UEKADO KAZUTO , MIYAJI NORIYUKI
Abstract: PURPOSE:To improve gas barrier performance and moldability, and protect the appearance from being deformed by applying the constitution where multilayer plastic for forming a vessel to cover a core material of high insulation performance is provided with at least one layer of ethylene vinyl alcohol copolymer resin layer containing a specific amount of ethylene. CONSTITUTION:A vessel 3 is made of multilayer plastic having an outermost layer 4, an intermediate layer 6 and an innermost layer 8. The outermost layer 4 is formed out of a resin layer 5 made of polypropylene resin or the like of almost 100mu thickness having high chemical resistance. The intermediate layer 6 is formed out of a resin layer 7 made of ethylene vinyl alcohol copolymer resin of almost 100mu thickness having high gas barrier performance and containing 20mol.% to 50mol.% of ethylene. The innermost layer 8 is formed out of a resin layer 9 made of polypropylene resin or the like of almost 100mu thickness having high chemical resistance and moldability. The vessel 2 is filled with a core material 3 formed via the pulverization of hard urethane foam.
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Patent Agency Ranking25.发明专利
公开(公告)号：JP2001108187A
公开(公告)日：2001-04-20
申请号：JP28957699
申请日：1999-10-12
Applicant: MATSUSHITA REFRIGERATION
Inventor： MIYAJI NORIYUKI , TANIMOTO YASUAKI
Abstract: PROBLEM TO BE SOLVED: To obtain a vacuum heat insulating body which has sufficient heat insulating performance by preventing thinning of the vacuum heat insulating body and avoiding a member which forms a projection. SOLUTION: This portions 4a, 4b are partially formed on a vacuum heat insulating body 1 composed of a porous core member 2 and an outer coating member 3. The thin portions are arranged on portions forming projections on the heat insulated surface, so that the thinning of the vacuum heat insulating body is dispensed with.
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公开(公告)号：JPH11311395A
公开(公告)日：1999-11-09
申请号：JP11468398
申请日：1998-04-24
Applicant: MATSUSHITA REFRIGERATION
Inventor： AMAYOSHI TOMONAO , TANIMOTO YASUAKI , MIYAJI NORIYUKI , TAKUSHIMA TSUKASA , HAYASHI CHIE
Abstract: PROBLEM TO BE SOLVED: To improve the recycle property of a vacuum heat insulator, and reduce the weight thereof by filling the powder carrying at least the oxidation inhibitor in a part of the powder formed by crashing the organic resin composition as a core material of a vacuum heat insulator in an inner bag material having a ventilating property. SOLUTION: The powder 4 of the crashed organic resin composition powder and the oxidation inhibitor 5 are mixed and agitated so as to manufacturing the powder 4 carrying the oxidation inhibitor 5. The predetermined a quantity of this powder 4 is filled in an inner bag material 3 having a ventilating property so as to manufacture a core material 2 for vacuum heat insulator 1. After performing the heating to the core material 2, the core material 2 is inserted with the gas adsorbent 6 into an outer material 7 made of the gas barrier type laminated film. Thereafter, evacuation is performed in a vacuum chamber provided with a thermal fusion device, and an end of the outer material 7 is sealed by thermal fusion so as to form a vacuum heat insulator 1. As an organic resin composition, the hard urethane foam as a foaming body of the urethane resin composition is especially desirable.
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公开(公告)号：JPH10219865A
公开(公告)日：1998-08-18
申请号：JP2020797
申请日：1997-02-03
Applicant: MATSUSHITA REFRIGERATION
Inventor： TANIMOTO YASUAKI , AMAYOSHI TOMONAO , MIYAJI NORIYUKI
IPC: E04B1/80
Abstract: PROBLEM TO BE SOLVED: To reduce the thickness of a dwelling house wall so as to improve construction efficiency and attain high heat insulation performance of a dwelling house by covering plural vacuum heat insulators with a foam synthetic resin. SOLUTION: Previously a spacer is fitted to a vacuum heat insulator 3. After the vacuum heat insulators 3 are installed in a face material with a designated space between the vacuum heat insulator 3 and the face material, a foam heat insulating material 2 is filled to cover the whole of the vacuum heat insulators 3 with a foam heat insulating material. The heat insulating panel 1 has a frame 5, and the frame 5 is partitioned by a longitudinal material 6 to heighten the rigidity of the frame 5. By jointly using the foam heat insulating material 2 and the vacuum insulators 3, the heat insulating panel 1 is forced to exhibit heat insulating performance, so that the wall thickness of the heat insulating panel 1 can be reduced so as to remarkably improve construction efficiency. As the vacuum insulators 3 are covered with the foam heat insulating material 2, external shock is not applied to the vacuum insulators 3 so as to solve the problem that the vacuum heat insulators 3 are burst by a shock at the time of construction and dew condensation is caused by deterioration of performance of the heat insulating panel 1.
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公开(公告)号：JPH10110887A
公开(公告)日：1998-04-28
申请号：JP26586896
申请日：1996-10-07
Applicant: MATSUSHITA REFRIGERATION
Inventor： TANIMOTO YASUAKI , MIYAJI NORIYUKI
Abstract: PROBLEM TO BE SOLVED: To suppress deterioration in thermal conductivity even at the time of leak, by forming an outer covering material into a baggy shape by thermally welding a laminate film, forming the heat welding layer of the outer covering material by a high density polyethylene resin, filling a plurality of core materials in the outer covering material, thermally welding the outer covering material by a part between the core material and arranging an independent vacuum part. SOLUTION: After core materials 2 formed of water bubble communication foams are heated and dried and a plurality of core materials 2 is uncontinuously filled in outer covering material 3 previously thermally welded in several parts at constant intervals in parallel with a pressure reducing direction, the outer covering material 3 are depressurized and tightly closed, so that the insides thereof become a predetermined degree of vacuum. After that, the outer covering materials 3 are thermally welded by the uncontinuous part of the core materials 2 so as to form independent vacuum parts 4, thus a vacuum heat insulating body 1 can be obtained. In the thusly obtained vacuum heat insulating body 1, the respectively independent vacuum parts 4 are formed, therefore, even though a part of the outer covering materials 3 is damaged, influence may not be exerted on the other vacuum part. Hereby, deterioration of thermal conductivity as the whole of the vacuum heat insulating body 1 is diminished. Therefore, the operation factor of a compressor may not be excess.
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公开(公告)号：JPH06337092A
公开(公告)日：1994-12-06
申请号：JP12572093
申请日：1993-05-27
Applicant: MATSUSHITA REFRIGERATION
Inventor： TANIMOTO YASUAKI , UEKADO KAZUTO , MIYAJI NORIYUKI
IPC: F16L59/06
Abstract: PURPOSE:To prevent the deterioration of gas barrier performance and enable a large size to be applied by blow molding a material having high gas barrier quality to form a vessel of hollow compact, and internally decompressing and sealing the vessel after charged with a core material. CONSTITUTION:A parison with wall thickness distribution adjusted to a molding elongation rate with a parison controller, is blow molded, thereby forming a vessel 2 of hollow compact. The vessel 2 is filled with a core material of high insulation performance available from the pulverization of hard urethane foam or the like. Then, the vessel 2 is internally decompressed and sealed, thereby forming a vacuum insulation pack 1. In this case, the vessel 2 is constituted of an outermost layer 4 made of a layer 5 such as polypropylene resin having high chemical resistance and moldability, an intermediate layer 6 made of a layer 7 such as ethylene vinyl alcohol resin having high gas barrier quality, and an innermost layer 8 made of a layer 9 such as polypropylene resin having high chemical resistance and moldability, thereby enhancing the gas barrier quality.
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