公开(公告)号：AU6755396A

公开(公告)日：1997-03-27

申请号：AU6755396

申请日：1996-08-26

Applicant: MATSUSHITA ELECTRIC IND CO LTD ,  MATSUSHITA REFRIGERATION COMPANY

Inventor： UENO TAKAYOSHI ,  HASHIDA TAKASHI ,  SUZUKI MASAAKI ,  INAGAKI FUMIHIRO ,  SONODA NOBUO ,  NAKAMOTO HIDEO ,  TENRA TOMOHISA ,  TAKUSHIMA TSUKASA ,  KISHIMOTO YOSHIO

IPC: C08G18/00 ,  C08G18/08 ,  C08G18/58 ,  C08J9/00 ,  C08J9/02 ,  C08L75/00 ,  C08J9/14

Abstract: There are disclosed a thermal insulating foamed material, which is superior in thermal insulating property and does not cause deterioration of the thermal insulating property with a time lapse, and a method for producing the same. According to a method for producing a thermal insulating foamed material, a foamed polyurethane resin composition having closed cells, in which at least carbon dioxide is filled, is formed by blowing a raw material mixture containing epoxides comprising at least two members of an epoxide compound having high reactivity with carbon dioxide and an epoxide compound having low reactivity with carbon dioxide, a carbon dioxide fixation catalyst, polyisocyanate, a reactive blowing agent which evolves carbon dioxide by reacting with said polyisocyanate, and a polyol composition. Then, the carbon dioxide in the closed cells is allowed to react with the epoxides in the presence of the carbon dioxide fixation catalyst, thereby to fix carbon dioxide as carbonate compounds.

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.

公开(公告)号：AU4885197A

公开(公告)日：1999-05-31

申请号：AU4885197

申请日：1997-11-06

Applicant: MATSUSHITA REFRIGERATION COMPANY

Inventor： NAKAMOTO HIDEO ,  TSUDA YOSHIYUKI ,  YUASA AKIKO

IPC: C08G18/82 ,  C08J9/00 ,  C08J9/12

Abstract: The thermal insulating foamed material 4 comprises a foamed polyurethane resin composition having closed cells filled with a volatile blowing agent, and having an alkali metal carbonate 7 or an alkaline-earth metal carbonate 7, formed by a reaction of an alkali metal hydroxide or an alkaline-earth metal hydroxide with carbon dioxide, and a water adsorbent 10 having a moistened water-absorbing substance 8 covered with a resinous coating film 9, enclosed in said thermal insulating foamed material 4, respectively.

公开(公告)号：AU4221796A

公开(公告)日：1996-08-08

申请号：AU4221796

申请日：1996-01-29

Applicant: MATSUSHITA ELECTRIC IND CO LTD ,  MATSUSHITA REFRIGERATION COMPANY

Inventor： NAKAMOTO HIDEO ,  TENRA TOMOHISA ,  TAKUSHIMA TSUKASA ,  UENO TAKAYOSHI ,  SUZUKI MASAAKI ,  INAGAKI FUMIHIRO ,  HASHIDA TAKASHI ,  KISHIMOTO YOSHIO

IPC: C08J9/00 ,  C08J9/14 ,  C08J9/08

Abstract: The present invention provides a thermal insulating foamed material with excellent thermal insulating properties and a method of manufacturing the same. The method comprises the steps of: concurrently mixing and blowing a polyurethane material to produce a foamed polyurethane resin composition with a multiplicity of closed cells, the polyurethane material including a reactive blowing agent, a volatile compound having a boiling point of not higher than 150 DEG C and a molecular weight of not less than 70, an epoxy compound, and a carbon dioxide fixation catalyst, wherein the closed cells are filled with the volatile compound and carbon dioxide produced by a reaction of the reactive blowing agent with a polyisocyanate; and allowing the carbon dioxide to chemically react with epoxy groups of the epoxy compound in the presence of the carbon dioxide fixation catalyst to form a solid or liquid cyclic carbonate. The method gives a foamed material with the closed cells substantially filled with vapor of the volatile compound at a partial pressure of at least 5 mmHg at 25 DEG C.