Gypsum products utilizing a two-repeating unit dispersant...

Details Gypsum products utilizing a two-repeating unit dispersant... Gypsum products utilizing a two-repeating unit dispersant...

C - Chemistry, Metallurgy

04

B

C04B 24/04 (2006.01)

Patent

CA 2607976

A gypsum slurry includes water, a hydraulic component including stucco and a polycarboxylate dispersant. The dispersant has two repeating units wherein the first repeating unit is an olefinic unsaturated mono-carboxylic acid repeating unit or an ester or salt, and the second repeating unit is a vinyl or allyl group bound to a polyether by an ether linkage. The slurry can be made into a gypsum panel.

Une suspension épaisse de gypse comprend de l'eau, un composant hydraulique comprenant du stuc et un dispersant polycarboxylate. Ce dispersant possède deux unités de répétition, la première unité de répétition étant un acide monocarboxylique insaturé oléfinique ou un ester ou un sel, et la seconde unité de répétition étant un groupe vinyle ou allyle lié à un polyéther par une liaison éther. Cette boue épaisse peut être transformée en un panneau de gypse.

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