C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
261/72
C04B 11/28 (2006.01)
Patent
CA 1197273
DRY MIX FOR HYDRATION OF PLASTER ABSTRACT OF THE DISCLOSURE An apparently dry mixture of hydrophobic pyrogenic silica and water, admixed with calcined gypsum in a ratio of water to calcined gypsum sufficient to hydrate the gypsum, with little if any excess water, avoiding need for energy, normally required, for drying the set gypsum product formed by the hydration.
425032
National Gypsum Properties Llc
Osler Hoskin & Harcourt Llp
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