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Title:
GYPSUM COMPOSITION, GYPSUM SLURRY, GYPSUM HARDENED BODY, GYPSUM-BASED CONSTRUCTION MATERIAL, GYPSUM BOARD, AND METHOD FOR PRODUCING GYPSUM-BASED CONSTRUCTION MATERIAL
Document Type and Number:
WIPO Patent Application WO/2014/041854
Kind Code:
A1
Abstract:
[Problem] The objective of the present invention is to provide: a gypsum composition that can obtain a high-strength gypsum hardened body without greatly increasing the amount of water added when creating a gypsum slurry; a gypsum slurry; a gypsum hardened body; a gypsum-based construction material; a gypsum board; and a method for producing a gypsum-based construction material. [Solution] Provided are: a gypsum composition containing calcined gypsum and a urea phosphate esterified starch; a gypsum slurry; a gypsum hardened body; a gypsum-based construction material; a gypsum board; and a method for producing a gypsum-based construction material.

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Inventors:
ATAKA YUJI (JP)
SATO YOSUKE (JP)
Application Number:
PCT/JP2013/064125
Publication Date:
March 20, 2014
Filing Date:
May 21, 2013
Export Citation:
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Assignee:
YOSHINO GYPSUM CO (JP)
International Classes:
C04B28/14; B28B1/30; B28B1/50; C04B24/38
Domestic Patent References:
WO2011122599A12011-10-06
Foreign References:
JP2005271444A2005-10-06
JP2004262232A2004-09-24
JP2009513843A2009-04-02
JP2004090396A2004-03-25
JPH08310114A1996-11-26
JPH04505601A1992-10-01
JP2008543705A2008-12-04
Other References:
See also references of EP 2896605A4
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
Tadashige Ito (JP)
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