HEAT INSULATOR AND METHOD FOR MANUFACTURING HEAT INSULATOR

• Main Authors: NAKANISHI, KOTARO, NAKANISHI, EMIKO, UETA, GEN
• Format: Patent
• Language: English; French; Japanese
• Published: 04.08.2016
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HANDLING THIN OR FILAMENTARY MATERIAL; HEATING; IMPREGNATING OR COATING OF PAPER; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PACKAGES; PACKAGING ELEMENTS; PACKING; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PERFORMING OPERATIONS; PIPES; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; STORING; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TEXTILES; THERMAL INSULATION IN GENERAL; TRANSPORTING; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; WEAPONS

The present invention provides a heat insulator that is less bulky than in the related art, has excellent processability, and can be applied to a microstructure, and also provides a manufacturing method by which such a heat insulator can be manufactured. The heat insulator according to the present invention comprises a main fiber, xerogel and/or aerogel, at least one hydrosoluble polymer selected from the group consisting of a cationic polymer and an ampholytic polymer, and/or a binder including a low-melting-point synthetic fiber, and is characterized in that the xerogel and the aerogel have a density lower than 0.5 g/cm3 and a thermal conductivity of 0.02 W/(m·K) or lower and, in terms of the gross weight, 35-210 parts by weight of the xerogel and/or aerogel are combined with 100 parts by weight of the main fiber. La présente invention concerne un isolant thermique qui est moins volumineux que dans l'art connexe, présente une excellente aptitude au traitement, et peut être appliqué à une microstructure, et concerne également un procédé de fabrication par lequel un tel isolant thermique peut être fabriqué. L'isolant thermique selon la présente invention comprend une fibre principale, un xérogel et/ou un aérogel, au moins un polymère hydrosoluble choisi dans le groupe constitué par un polymère cationique et un polymère ampholyte, et/ou un liant comprenant une fibre synthétique à point de fusion bas, et est caractérisé en ce que le xérogel et l'aérogel ont une densité inférieure à 0,5 g/cm3 et une conductivité thermique inférieure ou égale à 0,02 W/(m·K) et, en termes de poids brut, 35 à 210 parties en poids du xérogel et/ou de l'aérogel sont combinées avec 100 parties en poids de la fibre principale. 本発明は、従来よりも嵩が低く、かつ、加工性に優れ、微細構造にも適用可能な断熱材およびこのような断熱材を製造可能な製造方法を提供する。本発明の断熱材は、主体繊維と、キセロゲル及び／又はエアロゲルと、カチオン性ポリマー及び両性ポリマーからなる群から選択される少なくとも１つの水溶性ポリマー、及び／又は、低融点合成繊維を含むバインダーと、を含む断熱材であって、前記キセロゲル及びエアロゲルは、密度が０．５ｇ／ｃｍ３未満、熱伝導率が０．０２Ｗ／（ｍ・Ｋ）以下であり、前記主体繊維１００重量部に対して、前記キセロゲル及び／又はエアロゲルが総重量で３５～２１０重量部配合された、ことを特徴とする。