公开(公告)号：JPH05125212A

公开(公告)日：1993-05-21

申请号：JP29117491

申请日：1991-11-07

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKAMOTO HIDEO ,  AMAYOSHI TOMONAO

IPC: B32B5/20 ,  B65D81/38 ,  C08G18/00 ,  C08G18/48 ,  C08G101/00 ,  C08J9/14 ,  C08K5/02 ,  C08L75/00 ,  C08L75/04 ,  F25D23/06

Abstract: PURPOSE:To ensure the quality of a foamed thermal insulator and insulation box for use in, e.g. a refrigerator or freezer and to contribute to the elimination of the environmental problem of the ozone layer depletion by improving the solubility of a low-boiling foaming agent comprising an HCFC or HFC in a polyol ingredient to thereby attain, e.g. a decrease in the thermal conductivity of the foam. CONSTITUTION:An organic polyisocyanate is mixed, under stirring, with a polyol ingredient containing 5-25% hydroxyl compound having a molecular structure of the formula, a foam stabilizer, a catalyst, and a low-boiling foaming agent comprising an HCFC or HFC and having a boiling point of -50 to 0 deg.C. This mixture is foamed to obtain the title insulator. The title box is obtained by introducing the foamable mixture into the space between an inner box and an outer box and causing the mixture to foam and fill the space.

公开(公告)号：JPH04240377A

公开(公告)日：1992-08-27

申请号：JP559691

申请日：1991-01-22

Applicant: MATSUSHITA REFRIGERATION

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

IPC: F25D23/06 ,  F25D23/08

Abstract: PURPOSE:To restrain the deterioration with age of the adiabatic performance of an adiabatic box for a refrigerator, a freezer and the like which employ expandable adiabatic material such as rigid urethane foam or the like by utilizing ABS, whose constituting elements are limitted especially, for an inner casing. CONSTITUTION:The subject adiabatic box is constituted of hard urethane foam 4, employing fluorocarbon C5F12 as foaming agent, and an inner casing 5 molded by high nitirile ABS resin composition, obtained by polymerizing the monomeric mixture of 57-63wt.% of vinyl cyanide compound and 37-43wt.% of aromatic vinyl compound under the existence of 14-19 pts.wt. of conjugated diene synthetic rubber.

公开(公告)号：JPH04217774A

公开(公告)日：1992-08-07

申请号：JP40279090

申请日：1990-12-17

Applicant: MATSUSHITA REFRIGERATION

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

IPC: F25D23/06 ,  F25D23/08

Abstract: PURPOSE:To suppress deterioration with a time of heat insulating performance by a method wherein ABS the constituting component of which is especially limited is used for an inner box, in a heat insulating box body, e.g. a refrigerator, a freezer, formed by using a foamed heat insulating material, e.g. a rigid urethane foam. CONSTITUTION:A heat insulating box body comprises a rigid urethane foam 4 formed through water-foaming and an inner box 5 formed such that an ABS resin composition prepared by polymerizing a monomer mixture of 57-63wt.% vinyl cyanide compound and 37--43wt.% am aromatic vinyl compound under the presence of 14-19 wt pts conjugate synthetic rubber is shaped.

公开(公告)号：JPH04143586A

公开(公告)日：1992-05-18

申请号：JP26772090

申请日：1990-10-04

Applicant: MATSUSHITA REFRIGERATION

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

IPC: F25D23/08

Abstract: PURPOSE:To develop very prominent adiabatic performance and improve productivity by a method wherein foamed resin body, obtained through mixed foaming employing organic polyisocyanate, benzyl ether type liquid phenol resin composition, catalyst, foam stabilizer, foam communicating agent and the foaming agent of perfluoroalkane and provided with continuous foam structure is employed. CONSTITUTION:A core material or hard urethane foam 4 is provided with continuous foam structure obtained by mixing the materials of organic polyisocyanate, benzyl ether type liquid phenol resin composition, catalyst, foam stabilizer and the foaming agent of perfluoroalkane and foaming them. In this case, a fluorine series surface active agent is preferably utilized as the foam stabilizer. Further, the individual body or the mixture of perfluorohexane or perfluoropenthane is preferably used for the foaming agent or the perfluoroalkane. The hard urethane foam 4, obtained in such a manner, is covered by a bag type vessel 5, consisting of a metal-plastic laminate film made by laminating constitution while the inside of the vessel 5 is evacuated and sealed whereby an adiabatic body 6 can be obtained.

公开(公告)号：JPH04143585A

公开(公告)日：1992-05-18

申请号：JP26771890

申请日：1990-10-04

Applicant: MATSUSHITA REFRIGERATION

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

IPC: F25D23/08

Abstract: PURPOSE:To develop very prominent adiabatic performance and improve productivity by a method wherein a foamed resin body, obtained by employing organic polyisocyanate, polyol, catalyst, foam stabilizer, foam communicating agent and the foaming agent of perfluoroalkane and foaming through mixed foaming while having continuous foam structure, is employed. CONSTITUTION:A core material or hard urethane foam 4 is provided with continuous foam structure obtained by mixing the materials of organic polyisocyanate, polyol, catalyst, foam stabilizer, foam communicating agent and the foaming agent of perfluoroalkane and foaming them. In this case, a fluorine series surface active agent is preferably utilized as the foam stabilizer. Further, perfluorohexane or perfluoropenthane proper or the mixture thereof is preferably used for the foaming agent or the perfluoroalkane. The hard urethane foam 4, obtained in such a manner, is covered by a bag type vessel 5, consisting of a metal-plastic laminate film made by laminating constitution while the inside of the vessel 5 is evacuated and sealed whereby an adiabatic body 6 can be obtained.

公开(公告)号：JPH0443280A

公开(公告)日：1992-02-13

申请号：JP15212190

申请日：1990-06-11

Applicant: MATSUSHITA REFRIGERATION

Inventor： UEKADO KAZUTO ,  NAKAMOTO HIDEO ,  AMAYOSHI TOMONAO

IPC: F25D23/06 ,  F25D23/08

Abstract: PURPOSE:To obtain a heat insulating wall, prominent in resistance to burning and chemical attack while having no environmental problem, by a method wherein a hard urethane foam, employing a specified mixed foaming agent, is foamed integrally with a surface material made of a synthetic resin. CONSTITUTION:A heat insulating wall D is formed by foaming a hard urethane foam 4, employing 50-80mol% of 1,1-dichloro 1-flouroethane or 1,1-dichloro 2,2,2-trifluoroethane and the balance of 20-50mol% of perfluoroalkaline, is formed integrally with the surface material 2 of synthetic resin. According to this method, the property of chemical attack is small, whitening, cracking and the like are eliminated and the burning property of gas constituent is eliminated simultaneously whereby the title wall can be manufactured safely. On the other hand, an environmental problem such as ozone degradation and the like will never be generated.

公开(公告)号：JPH03244621A

公开(公告)日：1991-10-31

申请号：JP4179590

申请日：1990-02-22

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKAMOTO HIDEO ,  UEKADO KAZUTO ,  AMAYOSHI TOMONAO

IPC: C08J9/14 ,  C08G18/48 ,  C08G101/00 ,  C08L75/04

Abstract: PURPOSE:To obtain a foamed heat insulation material without detriment to the foam properties such as density while resolving an environmental problem such as the destruction of the ozone layer by using a specified chlorofluorocarbon, as a blowing agent, and a specified polyol, specifying the NCO/OH equivalent ratio and using a specified catalyst. CONSTITUTION:A foamed heat insulation material formed by mixing under agitation an organic polyisocyanate with a polyol, a catalyst, a foam stabilizer and a blowing agent comprising, 1,1-dichloro-1-fluoroethane, 2,2-dichloro-1,1,1- trifluoroethane or a mixture thereof and foaming the mixture, wherein the polyol is a mixture containing at least 20 wt.% polyether polyol prepared by using trimethylolpropane as an initiator, the equivalent ratio of the NCO groups of the organic polyisocyanate to the OH groups of the polyol is 1.3-3.0, and the above catalyst is an isocyanate trimerization catalyst or its mixture.