GYPSUM COMPOSITION FOR MANUFACTURING OF GYPSUM BOARD SHEETS WITH HIGHER RESISTANCE TO TEMPERATURE EFFECT Russian patent published in 2013 - IPC C04B28/14

Abstract RU 2487096 C1

FIELD: construction.

SUBSTANCE: gypsum composition includes gypsum, dry oxidised starch, technical lignosulfonate, a foaming agent, water and pre-watered (from 15% to 40%) swollen perlite sand of fine fraction from 0.16 mm to 1.25 mm.

EFFECT: increased resistance to temperature effect, namely increased time to damage of samples under high temperatures, which makes it possible to increase time for evacuation.

4 cl, 2 tbl, 2 ex

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RU 2 487 096 C1

Authors

Khamzin Rinat Ravilovich

Fedorov Oleg Valer'Evich

Dates

2013-07-10—Published

2011-12-12—Filed