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公开(公告)号：JPH0272293A
公开(公告)日：1990-03-12
申请号：JP22273888
申请日：1988-09-06
Applicant: MATSUSHITA REFRIGERATION
Inventor： NAKAMOTO HIDEO , KATAOKA JINKO , UEKADO KAZUTO
Abstract: PURPOSE:To shorten the exhaust time so as to enable mass production to be attained by coating a hard quality phenol urethane foam of open cell structure with a vessel of metal-plastic laminated film and reducing a pressure in the inside to close it. CONSTITUTION:A hard quality phenol urethane foam 4 of open cell structure, obtained by using benzylic ether type phenol resin of 400 to 600mgKOH/g hydroxyl group value, organic polyisocyanate, catalyst, bubble arranging agent, foaming agent and a bubble communication agent, is used for a heat insulating structure 6 as its core member. By the constitution thus obtained, the core member, because it is of fine foam framework, is coated with a vessel 5 formed by a metal-plastic laminated film, when a pressure in the inside is reduced, excellent heat insulating performance is obtained even by a pressure of about 0.1 to 0.01mmHg easy to handle industrially, and mass production efficiency is substantially improved by shortening the exhaust time.
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公开(公告)号：JPH0241309A
公开(公告)日：1990-02-09
申请号：JP19142188
申请日：1988-07-29
Applicant: MATSUSHITA REFRIGERATION
Inventor： KATAOKA JINKO , UEKADO KAZUTO , NAKAMOTO HIDEO
Abstract: PURPOSE:To obtain the subject heat insulating material without deteriorating physical properties, such as compressive strength, of foams and causing destruction of ozonosphere by mixing an organic polyisocyanate with a foam stabilizer, catalyst, specific foaming agent and specific polyether polyol and expanding the resultant mixture. CONSTITUTION:An expanded heat insulating material, such as rigid polyurethane foam, utilized in refrigerators or freezing chambers, etc., and obtained by mixing an organic polyisocyanate with a foam stabilizer, catalyst, foaming agent consisting of dichlorotrifluoroethane and polyether polyol using o-tolylenediamine as an initiator as a polyol component and expanding the resultant mixture.
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公开(公告)号：JPH01236222A
公开(公告)日：1989-09-21
申请号：JP6401788
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 an organic polyisocyanate with a specified polyol component, a blowing agent comprising dibromodifluoromethane, a foam stabilizer and a catalyst and expanding the resulting mixture. CONSTITUTION:An organic polyisocyanate is mixed with a polyol component comprising a mixture of a liquid benzyl ether phenol resin composition such as phenol polyol of a hydroxyl value of 420mgKOH/g and a water content
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公开(公告)号：JPH01107080A
公开(公告)日：1989-04-24
申请号：JP26451787
申请日：1987-10-20
Applicant: MATSUSHITA REFRIGERATION
Inventor： NAKAMOTO HIDEO , KATAOKA JINKO , UEKADO KAZUTO
Abstract: PURPOSE: To improve heat insulation performance by easily adsorving and removing carbon dioxide gas by disposing a carbon dioxide gas adsorbent containing sheet previously wetted with a fluorocarbon solvent between an inner box and an outer box and then integrally expanding a heat insulating material. CONSTITUTION: A heat insulator 1 is manufactured by fixing to a back surface of an inner box 3 a sheet 7 formed by impregnating a unwoven fabric containing a carbon dioxide gas adsorvent with a fluorocarbon solvent, and the inner box 3 and an outer box 2 are integrally expanded therebetween with a hard urethane foam 4. Hereby, the carbon dioxide gas adsorvent makes contact with air until the hard urethane foam is filled, to adsorv carbon dioxide gas and water in the air, whereby carbon dioxide produced in the hard urethane foam is easily adsorbed and removed, and hence an excellent performance heat insulation box is manufactured.
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公开(公告)号：JPS6467585A
公开(公告)日：1989-03-14
申请号：JP22235287
申请日：1987-09-04
Applicant: MATSUSHITA REFRIGERATION
Inventor： KATAOKA JINKO , UEKADO KAZUTO , NAKAMOTO HIDEO
Abstract: PURPOSE: To increase the adsorption rate of CO2 gas remaining in hard urethane foams to improve the heat insulation by setting a vacuum package formed by covering a CO2 gas absorbent with a plastic film capable of being dissolved in or swollen with a fluorocarbon type foaming agent between an inner and outer boxes and forming a box by implementing monolithic foaming with a hard urethane foam. CONSTITUTION: An outer cover 9 of a package 7 formed by vacuum-packaging synthetic zeolite CO2 adsorbent 8 as a carbon dioxide gas adsorbent is a biaxially oriented polystyrene film The package 7 is fixed to the back of an inner box 3 with adhesive tape, etc., and monolithic foaming is carried out with hard urethane foam using fluorocarbon 11 as a foaming agent between the inner and outer boxes 2 to form a heat-insulated box 1. Carbon dioxide gas in the hard urethane foam 4 reaches the CO2 adsorbent 8 filled in the package 7 held at a negative pressure via cracks/pin-holes produced in the cover 9 after being subjected chemical attack of the contained foaming agent. Esp. because the adsorbent 8 is vacuum-packed, provide adsorption rate of CO2 gas is very high and because of the CO2 gas adsorption a gas having a high thermal conductivity such as air is never discharged instead.
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Patent Agency Ranking
公开(公告)号：JPS63265936A
公开(公告)日：1988-11-02
申请号：JP9923787
申请日：1987-04-22
Applicant: MATSUSHITA REFRIGERATION
Inventor： KATAOKA JINKO , UEKADO KAZUTO , NAKAMOTO HIDEO
Abstract: PURPOSE:To obtain a foam free of frothy voids and excellent in low-temperature strengths and heat-insulating property, by using a polyol, a polyisocyanate, a catalyst, a foam stabilizer and a specified blowing agent. CONSTITUTION:In the production of a foam from a polyol, a polyisocyanate, a catalyst, a foam stabilizer and an blowing agent, a mixture obtained by mixing monobromomonochlorodifluoromethane with dibromotetrafluoroethane at a weight ratio of 52:48-95:5 is used as said blowing agent. When the amount of monobromomonochlorodifluoromethane used is 50wt.% or below based on the total blowing agent, the expansion ratio of the foam decreases and its low-temperature stability is worsened. When the amount of monobromomonochlorodifluoromethane used is above 95wt.% based on the total blowing agent, the cells of the foam become large and the heat-insulating property is decreased.
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公开(公告)号：JPH09324755A
公开(公告)日：1997-12-16
申请号：JP14406996
申请日：1996-06-06
Applicant: MATSUSHITA REFRIGERATION
Inventor： KATAOKA JINKO
Abstract: PROBLEM TO BE SOLVED: To optimize sliding material and oil film formation easily established therebetween so that compressor friction loss can be suppressed and the longer durability of compressor can be expected in a compressor used for refrigeration or air conditioning or the like, wherein hydrofluorocarbon is employed as compressible gas. SOLUTION: In the constitution of compressor, a thrust supporting member of a bearing 9 provides a triangular oil groove whose cut angle is more than 120 degrees of obtuse angle, and between a rotor 3 and the bearing 9 a thrust supporting member 11 made of a metal coated with hydrofluorocarbon film whose characteristic is very affinitive with lubrication oil containing oxygen atom in ester molecule is provided so that the sliding surfaces between the thrust supporting plate and the bearing can be improved, and resultantly, the higher efficiency and the longer durability of compressor can be expected.
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公开(公告)号：JP2548323B2
公开(公告)日：1996-10-30
申请号：JP22273888
申请日：1988-09-06
Applicant: MATSUSHITA REFRIGERATION
Inventor： NAKAMOTO HIDEO , KATAOKA JINKO , UEKADO KAZUTO
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公开(公告)号：JPH0398657A
公开(公告)日：1991-04-24
申请号：JP23780689
申请日：1989-09-13
Applicant: MATSUSHITA REFRIGERATION
Inventor： KATAOKA JINKO , NAKAMA HIROTO , HIRAMATSU SAWAKO
Abstract: PURPOSE:To enhance the dielectric polarization effect and collection efficiency of an electret filter by integrating a conductive resin net with the electret filter. CONSTITUTION:A charging part 1 consisting of discharge wires 2, parallel plate electrodes 3 and a DC voltage power supply 4 is provided on the upstream side of air flow and an electret filter 6 is arranged on the downstream side of the air flow in a corrugated shape so as to cross an air passage. Discharge wires 7 are provided on the upstream side of the filter 6 and the conductive resin net 8 integrated with the filter 6 is arranged so as to face to the downstream side of the filter 6. Further, voltage is applied to the discharge wires 7 and the resin net 8 is earthed to apply electric fields to the filter 6 by the discharge wires 7 and the resin net 8. As a result, the collection efficiency of dust particles of the filter 6 is enhanced and pressure loss is reduced and the life of the filter 6 is extended and, further, the dielectric polarization effect of the filter 6 is enhanced and collection efficiency is enhanced.
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公开(公告)号：JPH02192581A
公开(公告)日：1990-07-30
申请号：JP1235089
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 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 the inner box, the outer box, a partitioning part, dividing the inner box into 2 chambers or more and attached to the inner box, and foamed heat insulating material, poured through a pouring port communicated with a space formed by the outer box and the inner box to fill the space by foaming. CONSTITUTION:A heat insulating box body is constituted of an outer box 2, an inner box 3, a partitioning part 6, attached to the inner box 3 to divide the inner box 3 into two chambers, pouring ports 7, provided at the front surface of the partitioning part 6, and foamed heat insulating material 8, poured through the pouring ports 7 and foamed. The stock solution of the foamed heat insulating material 8 is poured through the pouring ports 7 provided on the partitioning part 6 while positioning the flanges of the front surface at the lower part of the box body. The poured stock solution arrives at a space 4, formed by the outer box 2 and the inner box 3, through pouring passages 9 in the partitioning part 6 and is distributed into two directions to make it flow into the ceiling surface part as well as the bottom surface part of the heat insulating box through the flange part. According to this method, the space is filled with foam, obtained by foaming the uniformly distributed stock solution, without any trouble whereby the heat insulating box body may be obtained.
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