URETHANE HAVING IMPROVED INSULATION PERFORMANCE AND REFRIGERATOR HAVING SAME APPLIED THERETO

• Main Authors: LIM, Jungsoo, JUNG, Mingyu, CHO, Sungmin, KOH, Youngdeog, PARK, Jongsung
• Format: Patent
• Language: English; French; Korean
• Published: 29.06.2023
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BLASTING; CHEMISTRY; COLD ROOMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; COMPOSITIONS BASED THEREON; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS; GENERAL PROCESSES OF COMPOUNDING; HEAT PUMP SYSTEMS; HEATING; ICE-BOXES; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; REFRIGERATION OR COOLING; REFRIGERATORS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WEAPONS; WORKING-UP

The invention disclosed in the present specification relates to urethane that has insulation performance improved by lowering the thermal conductivity of urethane, and to a refrigerator having same applied thereto. The urethane having improved insulation performance according to an embodiment of the present invention may comprise: a plurality of closed cells containing internal gas; a plurality of open cells connected to the external atmosphere; and cell walls that are provided between the closed cells and the open cells or between the plurality of closed cells to connect the closed cells and the open cells, or the plurality of closed cells; and may have a thermal conductivity (λurethane) of 17-18.5 mW/m·K. L'invention décrite dans la présente description concerne de l'uréthane qui présente une performance d'isolation améliorée par diminution de la conductivité thermique de l'uréthane, et un réfrigérateur le comprenant. L'uréthane ayant une performance d'isolation améliorée selon un mode de réalisation de la présente invention peut comprendre : une pluralité de cellules fermées contenant un gaz interne ; une pluralité de cellules ouvertes reliées à l'atmosphère extérieure ; et des parois cellulaires qui sont disposées entre les cellules fermées et les cellules ouvertes ou entre la pluralité de cellules fermées pour relier les cellules fermées et les cellules ouvertes, ou la pluralité de cellules fermées ; et peut avoir une conductivité thermique (lambdauréthane) de 17 à 18,5 mW/M·K. 본 명세서에서는 우레탄의 열전도도를 낮춤으로써 단열 성능을 향상시킨 우레탄 및 이를 적용한 냉장고에 관한 것을 개시한다. 본 발명의 일 실시예에 따른 단열 성능이 향상된 우레탄은, 내부 가스를 담고 있는 복수개의 밀폐 셀; 외부 대기와 연결된 복수개의 개방 셀; 및 상기 밀폐 셀과 상기 개방 셀 사이, 또는 상기 복수개의 밀폐 셀 사이에 마련되어, 상기 밀폐 셀과 상기 개방 셀, 또는 상기 복수개의 밀폐 셀을 연결시켜주는 셀 벽을 포함하고, 열전도도(λurethane)가 17 내지 18.5 mW/m·K일 수 있다.