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    EXPANDED HEAT-INSULATING MATERIAL
    2.
    发明专利
    EXPANDED HEAT-INSULATING MATERIAL 未知

    公开(公告)号：AU614691B2

    公开(公告)日：1991-09-05

    申请号：AU5265090

    申请日：1990-03-20

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： UEKADO KAZUTAKA ,  NAKAMOTO HIDEO

    IPC: C08J9/00 ,  C08J9/02 ,  C08J9/14 ,  C08L75/04 ,  C08K9/06 ,  C08G18/00

    Abstract: This invention relates to an expanded heat-insulating material containing a reduced amount of a fluorocarbon blowing agent for use in a freezer, refrigerator or the like. It is produced by stirring a mixture of a carbon dioxide adsorbent having a hydrophobic surface, a premix component containing water, and an isocyanate component. According to the expanded heat-insulating material thus produced, the amount of the fluorocarbon blowing agent to be used can be reduced since water is used as the blowing agent, while carbon dioxide generated by the reaction of the isocyanate with the water can be removed after foaming by adsorption with the carbon dioxide adsorbent, and the gas present in the bubbles becomes enriched with the fluorocarbon gas.

    3.
    发明专利
    未知

    公开(公告)号：DE69310827T2

    公开(公告)日：1998-01-08

    申请号：DE69310827

    申请日：1993-07-22

    Applicant: MATSUSHITA REFRIGERATION ,  TAKEDA CHEMICAL INDUSTRIES LTD

    Inventor： YUGE KIYOHIRO ,  MURAMATSU HITOSHI ,  MASUDA YASUTO ,  UEKADO KAZUTAKA ,  TANIMOTO YASUAKI

    IPC: C08G18/28 ,  C08G18/80 ,  C08J9/14

    Abstract: A method of producing an open cell rigid polyurethane foam which comprises reacting a polyol with a polymethylene polyphenyl polyisocyanate prepolymer with a monool exemplified by diethylene glycol monomethyl ether by use of a substitute such as 1,1-dichloro-1-fluoroethane or methylene chloride as a volatile blowing agent, or a mixture of the volatile blowing agent with water, for trichlorofluoromethane as a blowing agent in the presence of a catalyst, a foam stabilizer and a cell opening agent. The resultant open cell rigid polyurethane foam has a cell size of about 200-250 microns, and is suitable for use, for example, as a core material in a vacuum heat insulating material. The foam may be enclosed in a container under a vacuum of 0.1-0.01 mmHg readily attainable to provide a vacuum heat insulating material of a high heat insulating performance.

    EXPANDED HEAT-INSULATING MATERIAL
    5.
    发明专利
    EXPANDED HEAT-INSULATING MATERIAL 未知

    公开(公告)号：AU5265090A

    公开(公告)日：1990-10-22

    申请号：AU5265090

    申请日：1990-03-20

    Applicant: MATSUSHITA REFRIGERATION COMPANY

    Inventor： UEKADO KAZUTAKA ,  NAKAMOTO HIDEO

    IPC: C08J9/00 ,  C08J9/02 ,  C08J9/14 ,  C08L75/04 ,  C08K9/06

    Abstract: This invention relates to an expanded heat-insulating material containing a reduced amount of a fluorocarbon blowing agent for use in a freezer, refrigerator or the like. It is produced by stirring a mixture of a carbon dioxide adsorbent having a hydrophobic surface, a premix component containing water, and an isocyanate component. According to the expanded heat-insulating material thus produced, the amount of the fluorocarbon blowing agent to be used can be reduced since water is used as the blowing agent, while carbon dioxide generated by the reaction of the isocyanate with the water can be removed after foaming by adsorption with the carbon dioxide adsorbent, and the gas present in the bubbles becomes enriched with the fluorocarbon gas.

    Insulatedbox body, refrigerator having the box body, and method of recycling materials for insulated box body
    7.
    发明专利
    Insulatedbox body, refrigerator having the box body, and method of recycling materials for insulated box body 未知

    公开(公告)号：AU2002258258B2

    公开(公告)日：2005-03-10

    申请号：AU2002258258

    申请日：2002-05-31

    Applicant: MATSUSHITA REFRIGERATION COMPANY

    Inventor： NAKANO AKIRA ,  OHASHI YOSHIKI ,  UEKADO KAZUTAKA ,  SASKI MASATO

    IPC: F25D23/06 ,  F25D023/06

    Abstract: An insulation box unit and a refrigerator of the present invention employs i) rigid urethane foam with a 8.0 MPa-or-greater bending modulus, and a 60 kg/m -or-lower density, and ii) a vacuum insulation material. The proper bending modulus provides the insulation box unit with a substantial strength, even in the case that the coverage of the vacuum insulation material with respect to the surface of the outer box exceeds 40%. The proper density prevents the insulation box unit from poor insulation efficiency due to undesired solid thermal conductivity. Despite of an extended use of the vacuum insulation material, the insulation box unit offers an excellent insulation efficiency and therefore accelerates energy saving. According to the recycling method of the present invention, rigid urethane foam formed of tolylene di-isocyanate composition, which was separated from refrigerator wastes, is recycled as a material of rigid urethane foam.

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