C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 175/06 (2006.01) C08G 18/08 (2006.01) C08K 3/36 (2006.01)
Patent
CA 2538956
The invention relates to polyurethane-based aqueous polymer dispersions which comprise a) a polyurethane dispersion having an average particle size of from 60 to 350 nm and b) an aqueous silica dispersion having a particle diameter of the SiO2 particles of from 20 to 400 nm. The invention also relates to a method for producing the inventive dispersions and to the use thereof.
L'invention concerne des dispersions polymères aqueuses à base de polyuréthannes comprenant : a) une dispersion de polyuréthanne présentant une grandeur de particules moyenne comprise entre 60 et 350 nm ; et b) une dispersion de dioxyde de silicium aqueuse présentant un diamètre de particules des particules de SiO¿2? compris entre 20 et 400 nm. L'invention concerne également un procédé de production et d'utilisation desdites dispersions.
Arndt Wolfgang
Henning Wolfgang
Musch Ruediger
Panskus Knut
Rische Thorsten
Bayer Materialscience Ag
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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