Process for preparing styrenic polymer particles

C - Chemistry – Metallurgy – 08 – F

Patent

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400/1, 402/578,

C08F 2/18 (2006.01) C08F 12/02 (2006.01) C08J 3/20 (2006.01)

Patent

CA 1156399

Abstract of the Disclosure Styrenic polymer particles having a uniform particle size distribution are prepared without the formation of fine polymer powders. The suspension polymerization process which comprises providing a stirred, aqueous suspension of polymeric seed particles, adding gradually to the suspension styrenic monomer and poly- merizing it therein, and continuing the addition of monomer as the polymerization proceeds, may be improved by introducing the styrenic monomer below the surface of the suspension.

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