Preparation of polymer powders

Details Preparation of polymer powders Preparation of polymer powders

C - Chemistry, Metallurgy

08

F

402/248, 402/296

C08F 2/00 (2006.01) C08F 2/06 (2006.01)

Patent

CA 1194648

PREPARATION OF POLYMER POWDERS Abstract of the disclosure: Polymer powders are pre- pared from polymerizable monoethylenically unsaturated compounds, which boll at above +5°C under atmospheric pressure, by polymerizing the monomer, in the form of a 5 - 50% strength solution or emulsion in an inert or- ganic solvent which is a precipitant for the polymer, in a powder bed in the presence of a conventional poly- merization initiator, whilst maintaining the reaction mixture in the form of a powder and causing it to cir- culate, the organic solvent being removed, as vapor, from the polymerization zone during the polymerization.

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