C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 133/16 (2006.01) C04B 41/63 (2006.01) C04B 41/64 (2006.01) C09D 5/02 (2006.01) C09D 151/06 (2006.01) C09D 175/04 (2006.01) C09D 183/04 (2006.01)
Patent
CA 2620404
Disclosed is a stable aqueous surface treating agent for constructional/civil engineering structures which is able to impart a structure made of a constructional/civil engineering material such as stone and concrete, particularly one made of a porous material, with excellent water/oil repellency (water/oil proof property), antifouling property, weather resistance and durability. Specifically disclosed is an aqueous surface treating agent containing (A) at least one fluorine-containing polymer selected from (A1) polyfluoroalkyl group-containing poly(meth)acrylates and (A2) polyfluoroalkyl group-containing polyurethanes, in an aqueous medium. The aqueous surface treating agent usually contains (B) a surface active agent, and preferably contains (C) a silicone and (D) a silane compound having a hydrolyzable group and/or a partial hydrolysis-condensation product of a silane compound having a hydrolyzable group.
L'invention concerne un agent de traitement de surface aqueux stable pour des structures de construction/génie civil qui est capable de conférer à une structure constituée d'un matériau de construction/génie civil tel que de la pierre et du béton, en particulier à une structure constituée d'un matériau poreux, d'excellentes propriété hydrofuge/oléofuge (propriété d'imperméabilité à l'eau/à l'huile), propriété antisalissure, résistance aux intempéries et durabilité. L'invention concerne précisément un agent de traitement de surface aqueux contenant (A) au moins un polymère contenant du fluor sélectionné entre (A1) des poly(méth)acrylates contenant un groupe polyfluoroalkyle et (A2) des polyuréthanes contenant un groupe polyfluoroalkyle, dans un milieu aqueux. L'agent de traitement de surface aqueux contient habituellement (B) un agent tensioactif et contient de préférence (C) un silicone et (D) un composé silane ayant un groupe hydrolysable et/ou un produit d'hydrolyse-condensation partielle d'un composé silane ayant un groupe hydrolysable.
Asada Shigenori
Ibuki Hitoshi
Maekawa Takashige
Sugiyama Kazunori
Asahi Glass Company Limited
Smart & Biggar
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