Water repellent compositions

Details Water repellent compositions Water repellent compositions

C - Chemistry, Metallurgy

08

L

C08L 23/20 (2006.01) B27K 3/15 (2006.01) C04B 41/49 (2006.01) C04B 41/64 (2006.01) C08K 5/54 (2006.01) C08L 67/08 (2006.01) C09K 3/18 (2006.01) D06M 13/513 (2006.01) D06M 15/227 (2006.01) D06M 15/507 (2006.01) D06M 15/643 (2006.01) D21H 21/16 (2006.01)

Patent

CA 2221554

A composition is formed by combining water with an organic polymer such as polybutylene or an alkyd resin and an alkoxysilane of the formula R n Si(OR')4-n where R is an alkyl radical of 1-10 carbon atoms, an alkenyl radical having 2-8 carbon atoms, phenyl, chloropropyl or trifluoropropyl, n is 1 or 2 and R' is an alkyl radical having 1-6 carbon atoms. The composition is free of amine or quaternary ammonium functional silanes. It is conveniently emulsified and used to treat a cellulosic or masonry surface to render it water repellent.

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