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公开(公告)号：US20150176748A1
公开(公告)日：2015-06-25
申请号：US14408232
申请日：2013-07-29
Inventor： Yoshimitsu Ikoma , Hideyuki Ando , Kazuma Kugimiya , Tetsuji Shibata , Kenta Hosoi , Yasuhiro Hidaka
CPC classification number: F16L59/028 , B32B37/06 , B32B37/1284 , B32B37/14 , B32B2037/1238 , B32B2037/1253 , C04B26/122 , C04B30/00 , C04B2111/28 , Y10T428/268 , C04B14/064 , C04B20/0076
Abstract: Provided is a thermal insulator B formed by bonding a plurality of aerogel particles A with adhesive 2 and a method for producing the same. The aerogel particles A have an average particle size of 500 μm or more. The adhesive 2 exists as particles on surfaces of the aerogel particles A. A ratio (adhesive/aerogel particle) of an average particle size of the adhesive 2 to the average particle size of the aerogel particles A falls within a range of 1/200 to 1/10. For producing the thermal insulator B, the adhesive 2 is made of an adhesive powder including thermosetting resin or thermoplastic resin. Obtained thermal insulator B has an improved strength and is excellent in thermal insulating properties.
Abstract translation: 提供了通过将多个气凝胶颗粒A与粘合剂2结合而形成的绝热体B及其制造方法。 气凝胶粒子A的平均粒径为500μm以上。 粘合剂2作为颗粒存在于气凝胶颗粒A的表面上。粘合剂2的平均粒径与气凝胶颗粒A的平均粒径的比（粘合剂/气凝胶颗粒）在1/200至 1/10。 为了制造绝热体B，粘合剂2由包含热固性树脂或热塑性树脂的粘合剂粉末制成。 获得的绝热体B具有改善的强度并且绝热性能优异。
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公开(公告)号：US10266415B2
公开(公告)日：2019-04-23
申请号：US15129054
申请日：2015-01-13
Inventor： Kazuma Kugimiya , Takumasa Yamada , Hideyuki Ando
IPC: C01B33/158 , C01B33/16 , C01B33/155
Abstract: A method for producing silica aerogel according to the present invention includes: a solation step of generating a sol by adding monoalkyltrialkoxysilane to an acidic aqueous solution containing silicic acid; and a gelation step of generating a wet gel by gelating the sol. Moreover, the production method includes a drying step of removing a solvent, which is contained in the wet gel, from the wet gel by drying the wet gel at less than a critical temperature of the solvent and at less than a critical pressure of the solvent. Then, the monoalkyltrialkoxysilane is added to the acidic aqueous solution so that an amount of silicon in the monoalkyltrialkoxysilane becomes 1 mol part or more with respect to 1 mol part of an amount of silicon in the acidic aqueous solution containing the silicic acid.
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公开(公告)号：US10520126B2
公开(公告)日：2019-12-31
申请号：US14770179
申请日：2014-02-27
Inventor： Tetsuji Shibata , Kenta Hosoi , Yasuhiro Hidaka , Hideyuki Ando , Kazuma Kugimiya , Yoshimitsu Ikoma
Abstract: An object of the present invention is to propose heat insulating structure which is excellent in thermal insulating properties and higher in strength. The heat insulating structure includes: an aerogel layer including aerogel particles, adhesive, and fibers; and a retainer which is provided to at least one face of the aerogel layer and includes fiber materials and binder resin. Each of the fibers is part of one of the fiber materials included in the retainer.
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公开(公告)号：US10077193B2
公开(公告)日：2018-09-18
申请号：US15311615
申请日：2015-03-30
Inventor： Kazuma Kugimiya , Takumasa Yamada , Hideyuki Ando
IPC: C01B33/158 , C01B33/16 , C01B33/155
CPC classification number: C01B33/1585 , C01B33/155 , C01B33/163
Abstract: A method for producing a silica aerogel includes a gelation step of adding a monoalkyltrialkoxysilane to an acidic aqueous solution containing a surfactant to prepare a sol, and then gelating the sol to prepare a wet gel. The method further includes a separation step of immersing the wet gel in a solvent mixture of a first solvent and a second solvent immiscible with the first solvent. The first solvent has an ETN value of 0.5 or less, and the second solvent has an ETN value between those of the first solvent and water. The method further includes a drying step of drying the wet gel at a temperature lower than a critical temperature of the first solvent under a pressure lower than a critical pressure of the first solvent to remove the first solvent from the wet gel.
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