Pulverulent polymer composition, a process for its...

Details Pulverulent polymer composition, a process for its... Pulverulent polymer composition, a process for its...

C - Chemistry, Metallurgy

08

L

400/9040, 400/92

C08L 31/04 (2006.01) C08J 3/12 (2006.01) C08K 3/36 (2006.01) C08K 9/06 (2006.01) C09D 131/04 (2006.01) C09J 131/04 (2006.01)

Patent

CA 1204243

Abstract of the disclosure: A pulverulent polymer composition which is readily pourable, has a low tendency to form dust and has good stability on storage is composed of a mixture of a vinyl ester polymer and a small proportion of a hyarophobic silica. The composition is prepared by spray drying an aqueous vinyl ester polymer dispersion in the presence of a hydrophobic silica. The silica is preferably a product from the reaction of a hydrophilic silica with an organochlorosilane. The composition can be redis- persed in water and the films produced from such disper- sions are transparent; they are suitable for the produc- tion of paints, glues and adhesives.

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