Organosilicon emulsions for rendering porous substrates...

Details Organosilicon emulsions for rendering porous substrates... Organosilicon emulsions for rendering porous substrates...

C - Chemistry, Metallurgy

08

L

C08L 83/04 (2006.01) C04B 41/49 (2006.01) C08J 3/02 (2006.01) C08J 3/03 (2006.01) C09D 183/04 (2006.01) C09K 3/18 (2006.01)

Patent

CA 2094063

There are provided aqueous emulsions useful for rendering porous substrates water repellent comprising a) a hydrolyzable silane and/or siloxane, b) an organopolysiloxane resin consisting of R3SiO0.5 siloxane units and SiO2 siloxane units, or R3SiO0.5 units, R2SiO units, and SiO2 siloxane units, c) a filler having a surface area of at least 40 m2/g, d) an emulsifying agent, and e) water. Such compositions are especially useful on masonry exposed to wind-driven rain.

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