C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 1/00 (2006.01) C08K 3/36 (2006.01) C09D 5/02 (2006.01) C09D 7/12 (2006.01)
Patent
CA 2539416
Provided is a stain-proofing agent which forms a super hydrophilic stain-proofing film upon application to a surface of a substrate, which comprises using fumed silica dispersed in an aqueous solvent. Lasting stain-proofing property is imparted to the surface of a building material by the stain-proofing agent according to the invention. There are many single silanol groups which participate in hydrophilicity on the surface of fumed silica. The fumed silica has a high fixing property to the surface of a substrate and thus imparts lasting stain-proofing property to the surface of the substrate.
Agent antitaches qui, à l'application, forme un film antitaches super hydrophile sur la surface d'un substrat, et qui est formé de silice sublimée dispersée dans un solvant aqueux. Les propriétés antitaches durables sont conférées à la surface d'un matériau de construction par l'agent antitaches qui fait l'objet de cette invention. De nombreux groupes silanol contribuent aux propriétés hydrophiles de la surface de la silice sublimée. La silice sublimée comporte d'excellentes propriétés de fixation à la surface d'un substrat, ce qui confère des propriétés antitaches durables à la surface du substrat.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Nichiha Co. Ltd.
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