Particulate polymer and preparation process thereof

Details Particulate polymer and preparation process thereof Particulate polymer and preparation process thereof

C - Chemistry, Metallurgy

08

J

402/6

C08J 3/12 (2006.01) C08C 1/065 (2006.01) C08F 6/18 (2006.01)

Patent

CA 1281473

ABSTRACT OF THE DISCLOSURE Disclosed herein is a particulate polymer prepared by the agglomeration of polymer particles contained in a polymer latex. The particulate polymer is composed of primary particles having particle sizes of at least 20 µm and/or secondary particles formed by the agglomeration of at least some of the primary particles and is in the form of a compact mass sub- stantially free of voids. The particulate polymer is prepared by coagulating the polymer latex in the presence of a coagulant and an organic liquid having low solubility in water. The particulate polymer has a high bulk specific gravity and contains few fine particles. It is thus easy to handle and allows the consumption of energy to be reduced in the drying step.

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