Water resistant gypsum compositions and emulsions

Details Water resistant gypsum compositions and emulsions Water resistant gypsum compositions and emulsions

C - Chemistry, Metallurgy

04

B

261/78

C04B 24/26 (2006.01) C08L 91/06 (2006.01) C09D 191/06 (2006.01)

Patent

CA 2226246

A water-based wax emulsion formulation for imparting water repellent characteristics to gypsum wall boards comprising: (a) hydrocarbon wax; (b) an alkyl acid and/or alkyl ester; and (c) a polyvinyl alcohol composition comprising partially and/or fully hydrolyzed polyvinyl acetate. The formulation may also contains other ancillary components such as emulsifiers and stabilizers.

Formulation d'une émulsion cireuse à base d'eau pour conférer des propriétés hydrofuges aux panneaux de gypse et comprenant : (a) une cire du type hydrocarbure; (b) un acide d'alkyle et(ou) un alkylester; (c) une composition à base d'alcool polyvinylique comprenant un acétate de vinyle partiellement ou complètement hydrolysé. Cette formulation peut aussi contenir d'autres constituants accessoires comme des émulsifiants et des stabilisants.

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