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公开(公告)号：JPH08285409A
公开(公告)日：1996-11-01
申请号：JP8812895
申请日：1995-04-13
Applicant: MATSUSHITA REFRIGERATION
Inventor： SASABE SHIGERU , SAKAI TOSHIKAZU , KITA ICHIRO , KATAOKA JINKO , KINO AKIHIRO , SHIMIZU TAKESHI , TANAKA MASAAKI , YONEMURA MINORU
Abstract: PURPOSE: To increase an oil returning amount within an accumulator and to enable a poor lubricating action at a sliding part of a compressor to be reduced. CONSTITUTION: This accumulator is comprised of a container 5 storing refrigerant; a partition plate 6 for dividing the container 5 into two chambers, i.e., A chamber 7 and B chamber 8; an inlet pipe connected to an upper part of the A chamber 7 of the container 5; a first outlet pipe 9 connected to a lower part of the A chamber 7 of the container 5; a second outlet pipe 10 inserted into the lower part of the B chamber 8 of the container 5 and having its one end connected to a side part of the first outlet pipe 9; and a separated pipe 11 having one outer diameter smaller than an inner diameter of the inlet pipe, having one end inserted into the inlet pipe and the other end being connected to the partition plate 6 at a position higher than that of an end surface of the second outlet pipe 10.
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公开(公告)号：JPH02192582A
公开(公告)日：1990-07-30
申请号：JP1235589
申请日：1989-01-20
Applicant: MATSUSHITA REFRIGERATION
Inventor： NAKAMOTO HIDEO , KATAOKA JINKO , UEKADO KAZUTO
IPC: F25D23/08
Abstract: PURPOSE:To prevent the dispersion of the stock solution of foamed heat insulating material even when a space, formed by an outer box and an inner box, is narrow by a method wherein a heat insulating box body is formed of an outer box, an inner box, a partitioning plate, attached to a groove formed on the inner box and dividing the same box into two chambers or more, and foamed heat insulating material, filled into a space between the inner and outer boxes through the pouring ports of the same which are provided on the groove of the inner box. CONSTITUTION:A heat insulating box body 1 is constituted of an outer box 2, an inner box 3, provided with grooves 7 for inserting a partitioning plate 6 dividing the inner box 3 into two chambers, and foamed heat insulating material 8. When the stock solution of the foamed heat insulating material 8 is poured, the flange part of the front surface of the box body is positioned at the lower part of the box and the stock solution is poured through pouring ports 9 provided on the grooves 7. The poured stock solution is distributed into two directions and flows into the ceiling surface part as well as the bottom surface part of the heat insulating boxy body through the flange part. According to this method, a space between the inner box and the outer box may be filled with foam, obtained by foaming the uniformly distributed stock solution, without any trouble. Thereafter, the partitioning plate 6 is mounted and the heat insulating box body 1 may be obtained.
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公开(公告)号：JPH0284447A
公开(公告)日：1990-03-26
申请号：JP23524588
申请日：1988-09-20
Applicant: MATSUSHITA REFRIGERATION
Inventor： UEKADO KAZUTO , KATAOKA JINKO , NAKAMOTO HIDEO
Abstract: PURPOSE:To obtain an expanded heat insulator excellent in adhesion, heat insulating properties and foam strength by blending a benzylic ether type fluid phenol-based resin composition with a specified polyether and expanding the resultant mixture using a specified expanding agent. CONSTITUTION:With (A) a benzylic type fluid phenol-based resin (B) 20-40wt.% polyether prepared by using a non amine-based active hydrogen compound (e.g., trimethylolpropane or glycerin) as an initiator is blended and (C) a catalyst, (D) a foam stabilizer, (E) an organic polyisocyanate and (F) an expanding agent consisting of dichlorotrifluoroethane are added thereto. The resultant mixture is expanded to produce the objective expanded heat insulator excellent in adhesion and insulating properties, capable of ready monolithic expansion together with a face material and resistant to foam shrinkage at low outside-air temperatures in high productivity without environmental pollutions.
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公开(公告)号：JPH01236218A
公开(公告)日：1989-09-21
申请号：JP6401388
申请日：1988-03-17
Applicant: MATSUSHITA REFRIGERATION
Inventor： UEKADO KAZUTO , KATAOKA JINKO , NAKAMOTO HIDEO
Abstract: PURPOSE:To obtain the title material of excellent heat-insulating property easily in good productivity, by mixing a specified blowing agent with an organic polyisocyanate, a liquid benzyl ether phenol resin composition, a foam stabilizer and a catalyst and expanding the resulting mixture. CONSTITUTION:An organic polyisocyanate is mixed with a liquid benzyl ether phenol resin composition of a hydroxyl value of 420mgKOH/g and a water content
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公开(公告)号：JPS6479571A
公开(公告)日：1989-03-24
申请号：JP23524187
申请日：1987-09-18
Applicant: MATSUSHITA REFRIGERATION
Inventor： UEKADO KAZUTO , KATAOKA JINKO , NAKAMOTO HIDEO
IPC: F25D23/06
Abstract: PURPOSE: To enhance heat insulating performance of a heat insulating wall by filling the space between a film and a plate with a carbon dioxide gas absorbent previously wetted with a fleon solvent and adsorbing and removing carbon dioxide gas contained in hard urethane foam in a short time thereby enhancing thermal conductivity. CONSTITUTION: A heat insulating wall 1 comprises an outer plate 2, an inner plate 3, and hard urethane foam 4 filling the space between them. A carbon dioxide gas absorbent 5 is used while being filled previously in a ventilating bag 6 of nonwoven fabric. A gas permeable film 7 is made of polyethylene. The heat insulating wall is made by fixing the carbon dioxide gas absorbent 5 wetted with a fleon solvent 9, i.e., dibromotetrafluoroethane, to the shelf molding part 8 of the inner plate 3 by means of a tape, or the like, and applying the gas permeable film 7 in spots to the inner plate 3 by means of a both-sided tape, or the like. Subsequently, the hard urethane foam 4 is injected between the film 7 and the plate 2 thus forming the heat insulating wall.
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Patent Agency Ranking
公开(公告)号：JPS646677A
公开(公告)日：1989-01-11
申请号：JP16004687
申请日：1987-06-26
Applicant: MATSUSHITA REFRIGERATION
Inventor： UEKADO KAZUTO , KATAOKA JINKO , NAKAMOTO HIDEO
Abstract: PURPOSE: To effect an easy adsorption and removal of carbon dioxide gas generated and remained in rigid urethane foam by a method wherein carbon dioxide gas adsorbing agent arranged at the surface of an inner plate of a thermal insulation wall opposing against an outer plate is covered by a gas permeating film. CONSTITUTION: Rigid urethane foam is filled between an outer plate 2 and an inner plate 3 of a thermal insulating wall 1. To a shelf molded section 8 of the inner plate 3 is fixed and arranged carbon dioxide gas adsorbing agent 5 filled in a non-woven bag 6 by a tape or the like. A gas permeating film 7 is adhered to the inner plate 3 so as to cover the inner plate 3 and the carbon dioxide adsorbing agent 5. With such an arrangement as above, carbon dioxide gas contained in the rigid urethane foam is dispersed and moved toward a thickness direction of the thermal insulating wall, permeates the gas permeating film, resulting in that carbon dioxide gas can be easily adsorbed and removed with the carbon dioxide gas adsorbing agent within a short period of time.
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公开(公告)号：JPS63256608A
公开(公告)日：1988-10-24
申请号：JP9030287
申请日：1987-04-13
Applicant: MATSUSHITA REFRIGERATION
Inventor： UEKADO KAZUTO , KATAOKA JINKO , NAKAMOTO HIDEO
Abstract: PURPOSE:To provide a foamed heat insulting material having fine cells and excellent in heat insulating performance and productivity and being useful as an insulant for refrigerators, freezers, etc., by blending an organic polyisocyanate, a polyol, a specific foaming agent, a foam stabilizer, and a catalyst. CONSTITUTION:An organic isocyanate (A) (e.g., a polyisocyanate having an amine equivalent of 150 produced from tolylene diisocyanate, trimethylpropane and diethylene glycol), a polyol (B) (e.g., a polyether polyol having a hydroxyl value of 440, produced by addition polymerization of propylene oxide in the presence of an aromatic diamine), a foaming agent (C) containing 40mol.% or more dibromodifluoromethane, a foam stabilizer (D), and a catalyst (E) are blended to allow to foam.
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公开(公告)号：JPS6369840A
公开(公告)日：1988-03-29
申请号：JP21441886
申请日：1986-09-11
Applicant: MATSUSHITA REFRIGERATION
Inventor： UEKADO KAZUTO , KATAOKA JINKO
Abstract: PURPOSE:To obtain a heat insulating box body for refrigerators, etc., by injecting a blend of flon-114b2 (dibromotetrafluoroethane) with benzylic ether type phenolic resin, etc., into a gap between the inner and the outer boxes and carrying out in-situ integral foaming. CONSTITUTION:(A) A benzylic ether type phenolic resin is blended with (B) an organic polyisocyanate, (C) a catalyst, (D) a foam stabilizer and (E) flon-114b2 (dibromotetrafluoroethane) and the resultant blend is them injected into a gap between the inner and the outer boxes to afford the aimed heat insulating box body.
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公开(公告)号：JPH0443279A
公开(公告)日：1992-02-13
申请号：JP14944190
申请日：1990-06-07
Applicant: MATSUSHITA REFRIGERATION
Inventor： UEKADO KAZUTO , KATAOKA JINKO , NAKAMOTO HIDEO , NAKADA JUNICHI
Abstract: PURPOSE:To provide a heat insulting box body having a high quality by a method wherein a space between an inner casing, formed of a high nitrile thermoplastic resin composition, and an outer casing, made of a metal, is filled with an expandable heat insulating material consisting of organic polyisocyanate. CONSTITUTION:A space between an inner casing 6, formed of a high nitrile thermoplastic resin composition consisting of graft copolymer obtained by polymerizing 52-58 weight% of vinyl cyanide compound and 42-48weight% of aromatic vinyl compound under the existence of 13-15weight% of conjugated diene series synthetic rubber having average grain size of 0.14-0.22mum, and an outer casing 7, made of a metal, is filled with expandable heat insulating material 5 consisting of organic polyisocyanate, constituted of polyole, foaming agent, catalyst, the constituents of foaming agent of HCFC-123 or HCFC-141b and the mixture of them and 40-90weight% of isocyanate constituents of polymeric MDI or the prepolymerized substance thereof and the balance of TDI-80, crude TDI and the prepolymerized substance thereof with the graft ratio, satisfying a formula (I) within the range of specific viscosity of 0.067-0.077.
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公开(公告)号：JPH02154894A
公开(公告)日：1990-06-14
申请号：JP30739988
申请日：1988-12-05
Applicant: MATSUSHITA REFRIGERATION
Inventor： UEKADO KAZUTO , KATAOKA JINKO , NAKAMOTO HIDEO
Abstract: PURPOSE:To obtain a heat insulating material with high productivity and high reliability by coating an isocyanate trimer catalyst on the inner face of a sealed container and manufacturing hard urethane foam with saturated carboxylic acid dihydric metal salt as a bubble communicating agent. CONSTITUTION:An isocyanate trimer catalyst is coated on the inner face of a stainless sealed container 4 in advance. Hard urethane foam is filled through an injection port 6 with saturated monocarboxylic acid dihydric metal salt as a bubble communicating agent, it is heated for about 2hr at about 120 deg.C, adsorbed moisture or the like is evaporated via the injection port 6, a valve 7 is fitted, and the interior is decompressed by a vacuum pump for integral foaming. The total average of the continuous bubble fraction including a skin layer becomes 100%, and the hard urethane foam with no deterioration of the heat insulation performance can be manufactured with high productivity.
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