C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 91/06 (2006.01) B32B 13/08 (2006.01) C04B 24/26 (2006.01) C04B 24/34 (2006.01) C04B 28/14 (2006.01) C08L 29/04 (2006.01) C08L 91/08 (2006.01)
Patent
CA 2116483
The water resistance of gypsum compositions, such as those used in gypsum wallboard, is improved by incorporating in the compositions an aqueous emulsion containing a paraffinic hydrocarbon having a melting point of 40 to 80°C, montan wax and polyvinyl alcohol.
On améliore la résistance à l'eau de compositions de gypse, comme celles employées dans les panneaux de gypse, en incorporant dans les compositions une émulsion aqueuse renfermant un composé paraffinique possédant un point de fusion de 40 à 80 °C, de la cire de lignite et un alcool polyvinylique.
Henry Company Canada Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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