Anionic/cationic masonry sealing systems

Details Anionic/cationic masonry sealing systems Anionic/cationic masonry sealing systems

C - Chemistry, Metallurgy

09

D

C09D 133/16 (2006.01) C04B 41/49 (2006.01) C08K 5/521 (2006.01)

Patent

CA 2577056

A composition comprising a mixture, having a maximum molar ratio of acid to base of 0.6 and providing water repellency when applied to a substrate surface without etching of said surface, of A) an anionic aqueous fluoroalkyl phosphate solution which provides at least about 75% of the total fluorine content of said composition, and B) a cationic copolymer of fluoroalkyl(meth)acrylate or perfluoroalkylether(meth)acrylate present at a minimum of 0.3g per 100g of said composition.

L'invention concerne une composition formée d'un mélange, présentant un rapport molaire acide-base maximal de 0,6 et hydrofuge lorsqu'appliqué sur la surface d'un substrat sans gravure de ladite surface, A) d'une solution de phosphate de fluoroalkyle anionique aqueuse constituant au moins environ 75% du contenu en fluor total de ladite composition, et B) d'un copolymère cationique de fluoroalkyl(méth)acrylate ou de perfluoroalkyléther(méth)acrylate constituant au moins 0,3g pour 100g de ladite composition.

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