Water-redispersible film-forming polymer powders prepared...

Details Water-redispersible film-forming polymer powders prepared... Water-redispersible film-forming polymer powders prepared...

C - Chemistry, Metallurgy

08

K

C08K 5/42 (2006.01) C04B 24/16 (2006.01) C04B 24/26 (2006.01) C04B 24/32 (2006.01) C04B 40/00 (2006.01) C08F 2/24 (2006.01) C08J 3/00 (2006.01) C08L 57/00 (2006.01) C08L 61/14 (2006.01)

Patent

CA 2305487

The invention concerns a water-redispersible powder composition and comprising: at least a water-soluble film-forming polymer, said polymer (a) being prepared from at least an ethylenically unsaturated monomer; and at least a naphthalenesulphonate (b) of general formula (I), wherein: X and X', identical or different, represent OH or NH2; Y represents SO3<->,M<+>, M being an alkaline metal; x >/= 0, x' >/= 0 and x + x' >/= 1; y >/= 0, y' >/= 0 and y + y' >/= 1.

L'invention concerne une composition pulvérulente redispersable dans l'eau et comportant: au moins un polymère filmogene insoluble dans l'eau, ledit polymère (a) étant préparé à partir d'au moins un monomère à insaturation éthylénique, et au moins un naphtalènesulfonate (b) de formule générale (I) dans laquelle: X et X', identiques ou différents, représentent OH ou NH2, Y représente SO3-, M+, avec M métal alcalin, x>=0, x'>=0 et x + x' >= 1; y >= 0, y'>=0 et y + y'<=1.

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