Pigment-free, aqueous polymer dispersions marked with...

C - Chemistry – Metallurgy – 09 – D

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C09D 129/04 (2006.01) C08J 3/00 (2006.01) C08L 101/00 (2006.01) C09D 5/22 (2006.01)

Patent

CA 2701983

Pigment-free aqueous polymeric dispersion labelled with fluorescent dyes and having a Brookfield (spindle 3, 23°C) viscosity of 500 to 900 mPas, containing, all based on the solids content of the polymeric dispersion, (A) 1% to 99% by weight of at least one kind of water-soluble and/or dispersible polymers, (B) 1% to 20% by weight of at least one kind of water-dispersible polymeric particles containing at least one fluorescent dye, and (C) 0.001% to 3% by weight of at least one thickener; its production; and its use.

L'invention se rapporte à une dispersion polymère aqueuse, sans pigments, marquée avec des colorants fluorescents, qui a une viscosité allant de 500 à 900 mPa déterminée à l'aide de la méthode Brookfield (mobile 3, 23 °C) et contient respectivement, en ce qui concerne les solides de la dispersion polymère, (A) 1 à 99 % en poids d'au moins un type de polymères solubles et/ou dispersibles dans l'eau, (B) 1 à 20 % en poids d'au moins un type de particules polymères dispersibles dans l'eau et contenant au moins un colorant fluorescent et (C) 0,001 à 3 % en poids d'au moins un agent épaississant. L'invention se rapporte également à un procédé de préparation associé et à l'utilisation de la dispersion.

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