C - Chemistry – Metallurgy – 01 – F
Patent
C - Chemistry, Metallurgy
01
F
261/72
C01F 11/46 (2006.01) C04B 14/36 (2006.01) C09K 3/10 (2006.01)
Patent
CA 1141783
MICA-FREE JOINT COMPOUND ABSTRACT OF THE DISCLOSURE A joint compound, having crack resistance substantially equal to joint compounds containing mica, wherein the mica has been replaced by low length to width ratio gypsum crystals formed by the hydration of calcium sulfate to calcium sulfate dihydrate, particu- larly crystals formed in the presence of citric acid.
365151
Burke William R.
Smith Richard E.
National Gypsum Company
Osler Hoskin & Harcourt Llp
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