| 摘要 |
Apparatus for producing polymers in powdered form is disclosed, including means for forming a finely divided solvent-free spray of a liquid monomer of the polymer which is to be produced, or of a reactive unsaturated polymer. The spray passes through a high energy electron beam in an inert atmosphere in order to polymerize the monomer or reactive unsaturated polymer of the spray while in the spray form and produce a powdered polymer product. The preferred apparatus develops a charge on the particles of the finely divided spray and passes the charged spray through a similarly charged yoke to ensure particle separation and to compress the pattern of the spray prior to passage through the electron beam, which is preferably in the form of a curtain. In a preferred embodiment, a polymerized powdered paint is produced by this apparatus, and the liquid monomer and/or reactive unsaturated polymer may be compounded with color, initiators, pigments or other materials prior to polymerization of a finely divided spray of that liquid.
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