Preparation of polymer powders which are redispersible in an...

Details Preparation of polymer powders which are redispersible in an... Preparation of polymer powders which are redispersible in an...

C - Chemistry, Metallurgy

08

J

C08J 3/16 (2006.01) B01F 17/52 (2006.01) C04B 26/04 (2006.01) C08L 25/06 (2006.01) C08L 27/02 (2006.01) C08L 31/02 (2006.01)

Patent

CA 2188685

Polymer powders which are redispersible in an aqueous medium are prepared by drying an aqueous polymer dispersion whose polymer particles dispersed in the aqueous medium have a positive or a negative electric surface charge, with the addition of a water-soluble polyelectrolyte as a drying assistant, the electric charge of the polyion being opposite to the electric surface charge of the disperse polymer particles.

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