EP 2 896 605 A1

Gypsum composition, gypsum slurry, gypsum hardened body, gypsum-based construction material, gypsum board, and ­method for producing gypsum-based construction material

(22) 21.05.2013

(43) 22.07.2015

(57) [Problems] An object is to provide a gypsum composition, a gypsum slurry, a gypsum hardened body, a gypsum-based building material, a gypsum board, and a manufacturing method for a gypsum-based building material so that it is possible to obtain a gypsum hardened body with a high strength without drastically increasing an amount of added water when a gypsum slurry is provided.

[Solving means] A gypsum composition, a gypsum slurry, a gypsum hardened body, a gypsum-based building material, a gypsum board, and a manufacturing method for a gypsum-based building material are provided so that a calcined gypsum and a starch urea phosphate are included.

(71) Yoshino Gypsum Co., Ltd., Chiyoda-ku, Tokyo 100-0005 (JP)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME

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