Method for preparing organic silicon compound emulsion

Details Method for preparing organic silicon compound emulsion Method for preparing organic silicon compound emulsion

C - Chemistry, Metallurgy

09

D

25/108, 400/7204

C09D 183/04 (2006.01) C04B 41/49 (2006.01) C04B 41/63 (2006.01) C08G 77/06 (2006.01) C08G 77/50 (2006.01) C09K 3/18 (2006.01)

Patent

CA 2287820

An organic silicon compound emulsion for quickly imparting excellent water- repellent properties to the surfaces of porous inorganic base materials such as concrete, mortar, and masonry. The emulsion is prepared by the steps of emulsifying a mixture consisting of (A) an organoalkoxysilane, (B) an organopolysiloxane having in its molecule at least 2 alkoxy groups or hydroxyl groups bonded to a silicon atom, (C) an anionic emulsifying agent, and (D) water, and heat aging the emulsion at a temperature below 100°C. In another embodiment, the method comprises the steps emulsifying a mixture of the components (A) to (D) and adding an acidic or alkaline substance to the emulsion. In a third embodiment, the method comprises the steps of forming a mixture consisting of the components (A) to (D), adding an acidic or alkaline substance thereto, and performing the emulsification thereafter.

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