Title:
NEUTRON BEAM SHIELDING GYPSUM-BASED CONSTRUCTION BOARD, AND METHOD FOR PRODUCING NEUTRON BEAM SHIELDING GYPSUM-BASED CONSTRUCTION BOARD
Document Type and Number:
WIPO Patent Application WO/2021/241707
Kind Code:
A1
Abstract:
The present invention provides a neutron beam shielding gypsum-based construction board which contains gypsum, a boron-containing material that contains from 1.0 part by mass to 120 parts by mass of boron relative to 100 parts by mass of the gypsum, and from 0.05 part by mass to 2.0 parts by mass of a water reducing agent relative to 100 parts by mass of the gypsum. The boron-containing material contains one or more substances that are selected from among calcium borate, boron carbide, boric acid, boron oxide, sodium borate and calcium boride; and the dry specific gravity thereof is from 0.65 to 1.6.
Inventors:
SATO YOSUKE (JP)
NAITO DAISUKE (JP)
OKAMOTO NATSUKI (JP)
SUZUKI MASAKI (JP)
IKEO YOSAKU (JP)
KUSHIBE ATSUMICHI (JP)
OKAMOTO HAJIME (JP)
NORIMONO TAKEMI (JP)
ODAGAWA MASANOBU (JP)
NAITO DAISUKE (JP)
OKAMOTO NATSUKI (JP)
SUZUKI MASAKI (JP)
IKEO YOSAKU (JP)
KUSHIBE ATSUMICHI (JP)
OKAMOTO HAJIME (JP)
NORIMONO TAKEMI (JP)
ODAGAWA MASANOBU (JP)
Application Number:
PCT/JP2021/020274
Publication Date:
December 02, 2021
Filing Date:
May 27, 2021
Export Citation:
Assignee:
YOSHINO GYPSUM CO (JP)
TAKENAKA CORP (JP)
TAKENAKA CORP (JP)
International Classes:
C04B28/14; B28B1/30; C04B14/32; C04B14/36; C04B22/06; C04B22/08; C04B24/18; C04B24/22; C04B24/26; C04B24/30; G21F1/06; G21F3/00
Foreign References:
| JP2014089127A | 2014-05-15 | |||
| JP2012127725A | 2012-07-05 | |||
| JP2016166739A | 2016-09-15 | |||
| JP2013184853A | 2013-09-19 | |||
| JP2010540292A | 2010-12-24 | |||
| JP2014089127A | 2014-05-15 | |||
| JP2020094834A | 2020-06-18 |
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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