Water-repellent light weight cellular concrete panel, method...

C - Chemistry – Metallurgy – 04 – B

Patent

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C04B 41/64 (2006.01) C09D 183/08 (2006.01)

Patent

CA 2718047

A water-repellent lightweight cellular concrete panel having on its surface a water-repellent treatment layer provided by a water-based emulsion of a non-film-forming amino-modified organopolysiloxane A water-based emulsion of a non-film-forming ammo-modified organopolysiloxane is applied, by a spray method or a roller coating method, on the surface of lightweight cellular concrete panel and drying is carried out An O/W water- based emulsion of a non-film-forming ammo-modified organopolysiloxane that has an amine equivalent weight of 500 to 100,000 gram/mol and a viscosity at 25 °C of 50 to 1,000,000 mPa.cndot.s

La présente invention concerne un panneau de béton cellulaire léger hydrophobe ayant sur sa surface une couche de traitement hydrophobe produite par une émulsion à base aqueuse d'un organopolysiloxane à modification amino non filmogène. Une émulsion à base aqueuse d'un organopolysiloxane à modification amino non filmogène est appliquée, par un procédé de pulvérisation ou un procédé d'enduction au rouleau, sur la surface d'un panneau de béton cellulaire léger et un séchage est effectué. La présente invention concerne également une émulsion H/E à base aqueuse d'un organopolysiloxane à modification amino non filmogène qui a un poids équivalent en amine de 500 à 100 000 grammes/mole et une viscosité à 25 °C de 50 à 1 000 000 mPa·s.

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