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.

公开(公告)号：JPH05215293A

公开(公告)日：1993-08-24

申请号：JP1728292

申请日：1992-02-03

Applicant: MATSUSHITA REFRIGERATION

Inventor： TANIMOTO YASUAKI ,  UEKADO KAZUTO

IPC: F16L59/06

Abstract: PURPOSE:To manufacture a vacuum heat insulating pack stabilized in performance which can be used as a heat insulating member for a refrigerator. CONSTITUTION:A vacuum heat insulating pack is made up of a vacuum forming means forming an object into a container shape; a vacuum chamber 3 equipped with a heat laminating means 5 for installing a barrier member 4 by means of heat lamination under vacuum environment; and of a vacuum chamber 7 equipped with a chuck means 9 for heat sealing each peripheral section while tension is being applied to either one of a cover member 8 composed of a plastic laminate film and a forming member 1 or to both of them, and with a heat sealing means 10.

公开(公告)号：JPH05185440A

公开(公告)日：1993-07-27

申请号：JP32851791

申请日：1991-12-12

Applicant: MATSUSHITA REFRIGERATION

Inventor： UEKADO KAZUTO ,  TANIMOTO YASUAKI

IPC: B29C39/44 ,  B29C44/60 ,  B29K105/04 ,  B29L31/44 ,  C08G18/00 ,  C08G101/00 ,  F25D23/08

Abstract: PURPOSE:To ensure process quality and provide a high performance heat insulating object, in a heat insulating object whose interior is hermetically closed under reduced pressure, by judging the quality of the open-cell foaming of rigid urethane foam used as a core material in a foaming process. CONSTITUTION:A jig 4 having a pressure sensor arranged thereto, a detector 6 detecting pressure, a display part 7 displaying pressure and a quality judging device 8 are provided and the quality of the open-cell foaming of hard urethane foam is judged from a change in the foaming pressure of the rigid urethane foam subjected to foam injection molding within the jig 4. The hard urethane foam 2 judged to be a good product is used as a core material to be covered with a metal-plastic laminated film to produce a heat insulating object whose interior is hermetically closed under reduced pressure.

公开(公告)号：JPH04351622A

公开(公告)日：1992-12-07

申请号：JP12603091

申请日：1991-05-29

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKAMOTO HIDEO ,  UEKADO KAZUTO ,  AMAYOSHI TOMONAO ,  TANIMOTO YASUAKI

IPC: C08G18/48 ,  C08G18/50 ,  C08G101/00 ,  C08J9/02 ,  C08L75/04 ,  F16L59/06 ,  F25D23/08

Abstract: PURPOSE:To secure an excellent flowability in producing an open-cell rigid polyurethane foam even when a halogenated hydrocarbon blowing agent which exhibits a strong resin-dissolving power and has at least a hydrogen atom and a fluorine atom is used, and to produce a foam which has excellent thermal insulating properties and is used as a thermal insulator or a core of the insulator of a refrigerator. CONSTITUTION:An open-cell rigid polyurethane foam is prepd. by using a polyol component contg. at least 70wt.% polyol mixture consisting of 30-70wt.% arom. diamine-initiated polyether polyol and 70-30wt.% trimethylolpropane-initiated polyether polyol. Thus, the local degradation in the strengths of the foam due to an extreme orientation of cells is avoided, and a foam having strengths enough for a core of a thermal insulator and excellent thermal insulating properties is produced.

公开(公告)号：JPH04283388A

公开(公告)日：1992-10-08

申请号：JP4662191

申请日：1991-03-12

Applicant: MATSUSHITA REFRIGERATION

Inventor： UEKADO KAZUTO ,  NAKAMOTO HIDEO ,  AMAYOSHI TOMONAO ,  TANIMOTO YASUAKI

IPC: F25D23/06 ,  F25D23/08

Abstract: PURPOSE:To present invention relates to a thermal insulating box made of foamed thermal insulating material such as hard urethane foam having HCFC-123 or HCFC-141b and mixture as foam agent, in particular, ABs having a limited composing constituent is utilized as an inner box so as to prevent any occurrence of crack of the inner box or the like, thereby quality of product is assured and an environmental problem of destroying the ozone layer is eliminated. CONSTITUTION:This thermal insulating box is composed of an inner box 6 of which resin composing substances are limited and in particular having high nitrile thermoplastic resin composition molded with mixture of conjugated diene rubber/acrilic rubber = 55/45 to 65/35 as rubber composition, wherein HCFC-123 or HCFC-141b and its mixture as foam agent constituents and a hard urethane foam 7 composed of organic polyisocyanate having limited composition as isocyanate composition is mixed and filled between the inner box 6 and a metallic outer box 2.

公开(公告)号：JPH04176612A

公开(公告)日：1992-06-24

申请号：JP30746590

申请日：1990-11-13

Applicant: MATSUSHITA REFRIGERATION

Inventor： AMAYOSHI TOMONAO ,  UEKADO KAZUTO ,  NAKAMOTO HIDEO ,  TANIMOTO YASUAKI

IPC: B65D81/38 ,  B29C39/10 ,  B29K75/00 ,  B29K105/04 ,  B29L31/44 ,  B32B5/20 ,  F25D23/06

Abstract: PURPOSE:To obtain a heat insulating box having heat insulating properties, which are stable with time, by a structure wherein the heat insulating box concerned consists of rigid urethane foam and an inner box made by forming high nitrile ABS resin composition, which is obtained by polymerizing monomer mixture of vinyl cyanide compound and aromatic vinyls, the contents of both of which are specified respectively. CONSTITUTION:An inner box 5 is made with a vacuum former by forming flat sheet obtained by melting high nitrile ABS resin composition, which has 52-58wt.% of acrylonitrile monomer as vinyl cyanate compound and 42-48wt.% of styrene monomer, with an extruder equipped with a coathanger die and processing. After the inner box 5 is fitted to an outer box 2, urethane stock, which adopts CO2 generated through the reaction of water with isocyanate as foaming agent, is poured between both the inner box 5 and the outer box 2 for filling so as to produce rigid urethane foam 4 in order to obtain a heat insulating box 6. Thus, the deterioration with time of the obtained box is small and its stable heat insulating properties can be maintained over a long period of time.

公开(公告)号：JPH047317A

公开(公告)日：1992-01-10

申请号：JP10904990

申请日：1990-04-25

Applicant: MATSUSHITA REFRIGERATION

Inventor： AMAYOSHI TOMOTAKA ,  UEKADO KAZUTO ,  NAKAMOTO HIDEO

IPC: C08J9/14 ,  C08G18/00 ,  C08G18/54 ,  C08G101/00

Abstract: PURPOSE:To prepare the title material which is excellent in adhesive properties, strengths, and thermal insulating properties and hardly undergoes foam shrinkage even outdoors at a low temp. without causing any pollution problem by mixing a specific hydroxy component, a specific blowing agent, a catalyst, a foam stabilizer, and an org. isocyanate and foaming the mixture. CONSTITUTION:A hydroxyl component obtd. by compounding a benzylic ether- type liq. phenol resin compsn. (e.g. a phenol polyol) with 5-30% active hydrogen compd. other than an amine (e.g. trimethylolpropane), a catalyst (e.g. N- methylmorpholine), a foam stabilizer (e.g. F-338, a product of Shin-Estu Chemical Co., Ltd.), an org. polyisocyanate (e.g. a crude MDI, a product of Mitsui-Nisso Urethane Co., Ltd.), and a blowing agent comprising 1,1-dichloro-2,2,2- trifluoroethane or 1,1-dichloro-1-fluoroethane are mixed and foamed.

公开(公告)号：JPH03292113A

公开(公告)日：1991-12-24

申请号：JP9577490

申请日：1990-04-10

Applicant: MATSUSHITA REFRIGERATION

Inventor： UEKADO KAZUTO ,  NAKAMOTO HIDEO ,  TENRIYOU TOMONAO

IPC: F25D23/06 ,  B29C39/10 ,  B29K75/00 ,  B29K105/04 ,  B29L22/00 ,  B29L31/44 ,  B32B1/02 ,  B32B5/20

Abstract: PURPOSE:To enhance carbon dioxide adsorption and heat insulating performance by constituting a box body of an outer box, rigid urethane foam containing an adsorbent of gaseous carbon dioxide, and an inner box which is obtained by polymerizing the mixture of the monomers of vinyl cyanide compd. and aromatic vinyl compd. in the presence of conjugated diene-based synthetic rubber and molding the produced high nitrile ABS resin composition. CONSTITUTION:A thermally-insulated box body 6 is formed of an outer box 2, rigid urethane foam 4 containing an adsorbent of gaseous carbon dioxide and an inner box 5 obtained by molding high nitrile ABS resin composition. This high nitrile ABS resin composition is obtained by polymerizing the mixture of the monomers of 52 - 58wt.% vinyl cyanide compd. and 42 - 48wt.% aromatic vinyl compd. in the presence of 13 - 15pts.wt. conjugated diene-based synthetic rubber. The said ABS resin composition can be applied without causing trouble in vacuum moldability necessitated as the inner box material and the apparent quality, etc. By this constitution, gaseous carbon dioxide contained in rigid urethane foam is adsorbed and removed and thermal conductivity is improved. Moreover infiltration of air is prevented and the heat insulating performance of the thermally-insulated box body can be improved.

公开(公告)号：JPH03144279A

公开(公告)日：1991-06-19

申请号：JP14900689

申请日：1989-06-12

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKAMOTO HIDEO ,  UEKADO KAZUTO

IPC: F25D23/08

Abstract: PURPOSE:To fill the stock solution of a foamed heat insulating material without any trouble when a space section is narrow by a method wherein a heat insulating box body is provided with an outer box, an inner box, partitionings, mounted on the inner box and partitioning the inner box into two chambers or more, and a pouring port provided on the partitionings while the material of the foamed heat insulating material is poured through a pouring port by a secondary mixing unit provided in the pouring passage of the material to fill and foam it. CONSTITUTION:A heat insulating box body 1 is constituted of an outer box 2, an inner box 3, partitioning parts 6, mounted on the inner box 3 to partition the inner box 3 into two chambers, a pouring port 7, provided on the front surface of the partitioning plate 6, a secondary mixing unit 9, provided in a material pouring passage 8 from the pouring port 7, and foamed heat insulating material 10, filled and foamed. When the foamed heat insulating material 10 is poured through the pouring port 7, provided on the front surface of the partitioning part 6, the stock solution is mixed secondarily by a secondary mixing unit 9 provided in the material pouring passage 8 and flows into the ceiling surface part and the bottom surface part of the heat insulating box body through a flange part. According to this method, the insulating material 10 can be filled without any trouble even when a space, constituted by the outer box and the inner box, is narrow.

公开(公告)号：JPH03121143A

公开(公告)日：1991-05-23

申请号：JP25904489

申请日：1989-10-04

Applicant: MATSUSHITA REFRIGERATION

Inventor： UEKADO KAZUTO ,  NAKAMOTO HIDEO

IPC: C08J9/14 ,  C08L75/00 ,  C08L75/04

Abstract: PURPOSE:To produce a foamed thermal insulant excellent in the thermal insulating properties with a reduced amt. of a chlorofluorocarbon blowing agent used by mixing a specific premix component with a specific isocyanate component and foaming the resulting mixture. CONSTITUTION:A premix component comprising a polyether (e.g. an arom. amine-based polyether), a foam stabilizer (e.g. F-335, a product of Shin-Etu Chemical Co.), a catalyst (e.g. Kaolizer No.1, a product of Kao), water, and a chlorofluorocarbon blowing agent (e.g. chlorofluorocarbon-11) is mixed with an isocyanate component comprising a mixture of an org. polyisocyanate (e.g. crude MDI) with an adsorbent, i.e., a powdered activated carbon surface-treated with a silane compd. (e.g. KBM-3103C, a product of Shin-Etu Chemical Co.) having a reactive silyl group, and the resulting mixture is foamed.