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公开(公告)号：US20240200330A1
公开(公告)日：2024-06-20
申请号：US17995164
申请日：2021-04-01
发明人： Ushio SUDO , Wataru NAKAMURA , Tomoya HASEGAWA , Muneyoshi NAGANO , Masahiro WADA , Katsumi TADA , Yousuke SATO , Daisuke NAITO
CPC分类号： E04C2/46 , B32B13/02 , B32B13/08 , E04C2/043 , G01N3/24 , B32B2307/54 , B32B2307/718 , B32B2307/72 , B32B2307/7376 , B32B2607/00
摘要： An object of the present invention is to provide a gypsum-based load-bearing board for wood structural load-bearing walls which is capable of increasing the co-efficient of effective wall length without additionally using reinforcement materials or stiffening materials, and without increasing the specific gravity and/or the thickness of the gypsum-based board. The gypsum-based load-bearing board (10) for wood structural load-bearing walls includes a main member or a core member formed from a board-shaped hardened gypsum containing an inorganic fiber and an organic-based strength enhancer that exert a lateral nail resistance of 500 N or more, and a paper covering at least front and back sides of the main member or the core member to constitute the load-bearing board. The load-bearing board has a surface density of 6.5 kg/m2 to 8.9 kg/m2, exhibits an ultimate displacement (δu2) of the load-bearing wall measured by an in-plane shear test of greater than 20×103 rad (δu2), and exerts an ultimate strength (correction value) (Pu′) of greater than 7.6 kN. According to the wooden structural load-bearing walls using the load-bearing board can obtain short-term reference shear strength (P0) greater than the wooden structural load-bearing walls using similar load-bearing board having a surface density of greater than 9.0 kg/m2.
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公开(公告)号：US20230271885A1
公开(公告)日：2023-08-31
申请号：US17998289
申请日：2021-05-27
发明人： Yosuke SATO , Daisuke NAITO , Natsuki OKAMOTO , Masaki SUZUKI , Yosaku IKEO , Atsumichi KUSHIBE , Hajime OKAMOTO , Takemi NORIMONO , Masanobu ODAGAWA
CPC分类号： C04B28/14 , C04B22/0013 , C04B24/10 , C04B24/128 , C04B24/2641 , G21F1/00 , G21F3/00 , C04B2111/00629
摘要： A neutron beam shielding gypsum-based building board includes gypsum, a boron-containing material containing boron an amount of which is in a range from 1.0 parts by mass to 120 parts by mass with respect to 100 parts by mass of the gypsum, and a water reducing agent in a range from 0.05 parts by mass to 2.0 parts by mass with respect to 100 parts by mass of the gypsum. The boron-containing material includes one or more kinds selected from calcium borate, boron carbide, boric acid, boron oxide, sodium borate, and calcium boride, and a specific gravity in a dry condition is in a range from 0.65 to 1.6.
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公开(公告)号：US20240247176A1
公开(公告)日：2024-07-25
申请号：US18560518
申请日：2022-04-28
发明人： Katsumi NIIMI , Yosuke SATO , Daisuke NAITO
IPC分类号： C09K5/06 , C04B11/00 , C04B41/00 , C04B41/50 , C04B41/68 , C04B111/00 , E04C2/04 , E04C2/52 , F28D20/00
CPC分类号： C09K5/063 , C04B11/00 , C04B41/009 , C04B41/5024 , C04B41/68 , E04C2/043 , E04C2/526 , F28D20/0056 , C04B2111/00629
摘要： A latent heat storage gypsum plate includes: a gypsum plate having a first main face and a second main face located on an opposite side of the gypsum plate from the first main face; and a latent heat storage layer disposed over at least part of the first main face of the gypsum plate and including a latent heat storage material and a binder. A heat storage capacity of the latent heat storage gypsum plate is 260 kJ/m2 or more, the heat storage capacity being measured in a measurement temperature range of from 15° C. through 35° C. through heat storage capacity measurement specified in ASTM C 1784. The latent heat storage gypsum plate exhibits heat generation property grade 1 as evaluated by a heat generation property test specified in JIS A 6901 (2014), with the face in which the latent heat storage layer is disposed being set as a back face.
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