Compositions for the manufacture of gypsum boards, methods...

Details Compositions for the manufacture of gypsum boards, methods... Compositions for the manufacture of gypsum boards, methods...

C - Chemistry, Metallurgy

04

B

C04B 16/02 (2006.01)

Patent

CA 2736481

A composition for the manufacture of a gypsum board comprising hydrated pregelatinized starch and stucco with 0.4 to 3 wt.% of starch based on the stucco weight is disclosed. The composition provides enhanced strength in the absence of other strengthening agents.

La présente invention concerne une composition pour la fabrication dune plaque de plâtre qui comprend de lamidon prégélatinisé hydraté et du stuc qui comporte 0,4 à 3 % en poids damidon sur la base du poids du stuc. La composition fournit une résistance optimisée en labsence dautres agents de renfort.

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