Compositions and methods to protect calcitic and/or...

Details Compositions and methods to protect calcitic and/or... Compositions and methods to protect calcitic and/or...

C - Chemistry, Metallurgy

04

B

400/7023

C04B 41/48 (2006.01) C09D 133/16 (2006.01)

Patent

CA 2337420

Calcitic and/or siliceous architectural and construction materials are provided with increased resistance to damage from water, oil, grease and weather by a process which comprises treating said materials with an aqueous composition containing: (A) from about 0.1 to 4 % by weight on a 100 % solids basis of an aqueous solution or self-dispersed emulsion or dispersion of a copolymer which is a reaction product of monomers containing fluorinated groups, cationic groups and nonionic groups, (B) an effective amount of a penetration assistant, and (C) water to make up 100 %.

L'invention consiste à conférer à des matériaux architecturaux ou de construction calcaires ou siliceux une résistance accrue à l'eau, aux huiles, aux graisses et aux intempéries en les traitant par une solution aqueuse contenant: (A) d'environ 0,1 à 4 % en poids sur une base de 100 % des solides d'une solution aqueuse ou d'une émulsion autodispersante ou d'une dispersion d'un copolymère produit de réaction de monomères contenant des groupes fluorés, cationiques ou non ioniques; (B) une quantité efficace d'agent de pénétration; et (C) l'appoint d'eau.

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