公开(公告)号：JPH08196865A

公开(公告)日：1996-08-06

申请号：JP907495

申请日：1995-01-24

Applicant: MATSUSHITA REFRIGERATION

Inventor： TSUDA YOSHIYUKI ,  UEKADO KAZUTO ,  NAKAMOTO HIDEO ,  AMAYOSHI TOMONAO ,  TAKUSHIMA TSUKASA

IPC: B01D53/34 ,  B01D53/62

Abstract: PURPOSE: To adsorb and remove gaseous CO2 contained in rigid urethane foam and to improve the heat insulating performance by using a gaseous CO2 adsorbent in urethane stock to be foamed integrally. CONSTITUTION: Powder of an alkali metal hydroxide or an alkaline earth metal hydroxide is mixed with a water carrying water-absorbing substance and the resultant mixture is granulated and surface-treated with an org. coating agent, etc., to obtain the objective gaseous CO2 adsorbent. This adsorbent does not adsorb water in urethane stock and can adsorb and remove only gaseous CO2 in foam after foaming.

公开(公告)号：JP2003121064A

公开(公告)日：2003-04-23

申请号：JP2001312146

申请日：2001-10-10

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAMISAKO TOYOSHI ,  TAKUSHIMA TSUKASA ,  HIGAMI KAZUYA ,  NAKANO AKIRA ,  YAMADA MUNETAKA

IPC: F25D23/06

Abstract: PROBLEM TO BE SOLVED: To save energy by suppressing thermal load intrusion inside a refrigerator while preventing moisture condensation in a refrigerator body. SOLUTION: The projected length a of the shape of a double flange 12g, which is formed of a front flange 12a, a front flange folded part 12b, a back flange 12c, a second flange 12d, and a second flange extension part 12e, to an inner box is set within 15 mm. This constitution can reduce the intrusion heat into the refrigerator inside to secure the energy saving and the strength of a heat insulating box body 2.

公开(公告)号：JP2002147942A

公开(公告)日：2002-05-22

申请号：JP2000337123

申请日：2000-11-06

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKANE HIDEKI ,  ASAKAWA OSAMU ,  YAMAUCHI TAKASHI ,  KUROSHIMA ATSUSHI ,  TAKUSHIMA TSUKASA

IPC: F25D23/06

Abstract: PROBLEM TO BE SOLVED: To provide a vacuum heat insulating material capable of preventing the deformation of a contact surface when the vacuum heat insulating material is stuck to the outer box or the inner box of a refrigerator main body to form a heat insulating wall and easily extending along the configuration of the contact surface. SOLUTION: A plurality of protruding parts 34 are provided on either wall surface of an inner space formed by the outer box 31 and the inner box 32 of the refrigerator 30, and the vacuum heat insulating material 35 is fixed in contact thereto to prevent the deformation of the inner box 32 or the outer box 31. A linear compression part 73 is provided on a vacuum heat insulating material 72 so as to easily extend the heat insulating material along the contact surface to eliminate unevenness in attachment. Thus, the refrigerator of high quality can be provided.

公开(公告)号：JP2000291881A

公开(公告)日：2000-10-20

申请号：JP9631699

申请日：1999-04-02

Applicant: MATSUSHITA REFRIGERATION

Inventor： AMAYOSHI TOMONAO ,  TAKUSHIMA TSUKASA ,  HAYASHI CHIE

IPC: F16L59/06

Abstract: PROBLEM TO BE SOLVED: To provide an excellent heat insulating body with a high degree of shape freedom by means of simple manufacturing equipment by covering a core material made of powder with a gas-barrier film and specifying an internal pressure to a specific value. SOLUTION: An organic resin composition or an inorganic composition is used for powder 2 constituting a core material 4 for a decompressed heat insulating body 1, and a gas-barrier film 5 container is filled with the powder 2, while the container is sealed after its internal pressure is reduced to 1-90 kPa. Therefore, the shape of the heat insulating body 1 can be maintained by an atmospheric pressure only because it is filled with the powder 2, so that neither use of a binder nor heat press molding is required. If the inner pressure of the heat insulating body 1 exceeds 90 kPa, the thickness of the heat insulating body 1 is increased/reduced, and its shape is hardly maintained, so that of the powder 2 distribution inside the heat insulating body 1 is deflected. On the other hand, for reducing the inner pressure below 1 kPa, a dedicated large-scale exhaust device is required and complication of the process management in a previous processing process such as drying power and in an exhaust process occurs.

公开(公告)号：JP2000291880A

公开(公告)日：2000-10-20

申请号：JP9631199

申请日：1999-04-02

Applicant: MATSUSHITA REFRIGERATION

Inventor： HAYASHI CHIE ,  AMAYOSHI TOMONAO ,  TAKUSHIMA TSUKASA

IPC: F16L59/06

Abstract: PROBLEM TO BE SOLVED: To improve heat insulating performance without increase in solid heat conductivity by mixing powder with a grain size within one specific range and powder with a grain size within another specific range together for using the mixture as a core material for a vacuum heat insulating material. SOLUTION: A vacuum heat insulating material 1 consists of a core material using powder with grain sizes showing volume frequency peaks at 100-400 μm and at 1-50 μm in a histogram representing a volume frequency to a grain size and a coating material covering the core material. Because these kinds of powder 4 is applied to the core material for the vacuum heat insulating material 1, a void in the powder is reduced and gas heat conductivity is reduced, while increase in conduction points between the powder is lowered and solid heat conductivity is not also increased, and consequently a heat insulating material with excellent heat insulating performance can be provided. As the grain sizes of the powder 4 are limited within a range of 100-400 μm and within a range of 1-50 μm, the vacuum heat insulating material 1 excellent in both of gas heat conductivity and solid heat conductivity can be provided.

公开(公告)号：JP2000248653A

公开(公告)日：2000-09-12

申请号：JP5002999

申请日：1999-02-26

Applicant: MATSUSHITA REFRIGERATION

Inventor： HAYASHI CHIE ,  AMAYOSHI TOMONAO ,  TAKUSHIMA TSUKASA

IPC: B27M3/00 ,  E04B1/80

Abstract: PROBLEM TO BE SOLVED: To obtain a heat insulating panel for construction, which is excellent in heat insulating performance, by using both a vacuum heat insulating body and a resin foam, and to fix and cut the heat insulating panel without breaking the vacuum heat insulating body contained in the heat insulating panel. SOLUTION: In a heat insulating panel 1 using both a vacuum heat insulating body 3 and a resin foam 2, a location at which the vacuum heat insulating body 3 is disposed is defined. Therefore, the heat insulating panel 1 which can be fixed or cut while maintaining the heat insulating performance can be obtained. Further, by mounting the panel 1 on a wall or the like of a house by using joining members such as nails, the heat insulating panel 1 which is excellent in workability in the construction site can be obtained. Thus, the heat insulating panel 1 for construction, which is excellent in heat insulating performance and workability can be obtained.

公开(公告)号：JPH1181511A

公开(公告)日：1999-03-26

申请号：JP24807597

申请日：1997-09-12

Applicant: MATSUSHITA REFRIGERATION

Inventor： TAKUSHIMA TSUKASA ,  TANIMOTO YASUAKI ,  AMAYOSHI TOMONAO ,  MIYAJI NORIYUKI

IPC: E04C2/20 ,  E04B1/80 ,  F16L59/06 ,  F25D23/06

Abstract: PROBLEM TO BE SOLVED: To reduce heat conduction by inserting a material blending core having-hard urethane foam powder and water absorbent having specific surface area larger than the urethane powder in an outer cover material to decompress the inside thereof to seal up. SOLUTION: Uethane powder 2 pulverizing hard urethane foam is blended with a water absorbent 3 having 5-20 times of specific surface area in comparison with the urethane powder. After a material blending the urethane powder 2 and water absorbent 3 is heated and dewatered at temperature of 120 deg.C-250 deg.C, the plate-like material resulting from pressure molding under conditions of 5-100 kg/cm is inserted in an outer cover material 4 formed in the shape of a bag by heat welding. Then, the outer cover material 4 is put in a chamber 12 of a vacuum packing machine 10, the end face 13 of an opening in the outer cover material 4 is mounted to a heat sealing machine 11, and the inside of the chamber 12 is decompressed to seal up the outer cover material 4. Accordingly, the scatter of the powder is prevented, and work efficiency can be promoted.

公开(公告)号：JPH10310656A

公开(公告)日：1998-11-24

申请号：JP12195397

申请日：1997-05-13

Applicant: MATSUSHITA REFRIGERATION

Inventor： TAKUSHIMA TSUKASA ,  NAKAMOTO HIDEO ,  AMAYOSHI TOMONAO

IPC: C08J9/12

Abstract: PROBLEM TO BE SOLVED: To obtain an expanded heat insulation material showing excellent heat insulation properties and deteriorating less in thermal conductivity even after long-term air permeation by making an expanded urethane resin composition having closed cells filled with a hydrofluorocarbon and an organic volatile substance having a specified vapor pressure include urethane bonds and urea bonds, a carbonate synthesis catalyst and a carbonate compound. SOLUTION: The three components of a mixture comprising a polyol composition, a foam stabilizer, a urethane polymerization catalyst, a reactive blowing agent and a volatile blowing agent, a mixture comprising an epoxide compound and a carbonate synthesis catalyst and an isocyanate component are mixed with each other under agitation in a high-pressure expanding machine. The intracellular CO2 is fixed in the form of a cyclic carbonate and results in improved thermal conductivity. The volatile blowing agent is a combination of an HFC with an organic volatile substance (especially desirably, cyclopentane) having a vapor pressure of 5-20 kgf/cm at ordinary temperature and it is therefore contributes to lowered load on the environment. A refrigerator containing a closed refrigerator box packed with the expanded product deteriorates less in heat insulation performances even after air permeation.

公开(公告)号：JPH09302128A

公开(公告)日：1997-11-25

申请号：JP11455496

申请日：1996-05-09

Applicant: MATSUSHITA REFRIGERATION ,  MATSUSHITA ELECTRIC IND CO LTD

Inventor： AMAYOSHI TOMONAO ,  NAKAMOTO HIDEO ,  TAKUSHIMA TSUKASA ,  SUZUKI MASAAKI ,  UENO TAKAYOSHI ,  HASHIDA TAKU

IPC: C08J9/14

Abstract: PROBLEM TO BE SOLVED: To obtain a foamed heat insulating material capable of improving the thermal conductivity of gas by fixing carbon dioxide in the closed cells of the foamed heat insulating material with an epoxide compound and removing and capable of maintaining heat insulting performances excellent with time. SOLUTION: This foamed heat insulating material 5 comprises a foamed polyurethane resin composition having closed cells of a resin. The resin composition contains at least a urethane bond, a urea bond, a carbonate synthetic catalyst and a carbonate obtained by reacting an epoxide with carbon dioxide. The closed cells contain a volatile blowing agent and a fluorine-based hydrocarbon having a partial pressure lower than that of the volatile blowing agent.

公开(公告)号：JPH09100410A

公开(公告)日：1997-04-15

申请号：JP25845895

申请日：1995-10-05

Applicant: MATSUSHITA REFRIGERATION

Inventor： AMAYOSHI TOMONAO ,  NAKAMOTO HIDEO ,  TSUDA YOSHIYUKI ,  TAKUSHIMA TSUKASA

IPC: F16L59/06 ,  C08G18/00 ,  C08G18/08 ,  C08J9/02 ,  C08J9/14 ,  C08K5/04 ,  C08L75/00 ,  C08L75/04 ,  C09K3/00 ,  F25D23/08

Abstract: PROBLEM TO BE SOLVED: To obtain a fixing agent comprising an epoxide compound and a specific addition reaction catalyst of carbon dioxide, capable of readily reacting with carbon dioxide at a normal temperature under a normal pressure, generating a cyclic carbonate composition at a high yield and more efficiently fixing carbon dioxide. SOLUTION: This carbon dioxide fixing agent is composed of at least an onium compound (e.g. tetra-n-butylammonium bromide) and a urethane polymerization catalyst (e.g. dibutyltin dilaurate) (preferably, composed of an onium compound and an organic tin compound) as an addition reaction catalyst of at least one component of epoxide compound with carbon dioxide and a cyclic carbonate composition is produced by a reaction of addition reaction [e.g. a reaction of the formula (R -R are each H or a substituting group)] of carbon dioxide.