Inventors:
Leo M. Landoll - Wilmington DE
Walter S. Ropp - Hockessin DE
Assignee:
Hercules Incorporated - Wilmington DE
International Classification:
C08L 6706
C08L 7700
G03G 900
Abstract:
A process for producing uniformly small spherical particles of crystalline, normally solid condensation polymers is described. The process of this invention further provides high yields of hydrophobic, non-agglomerating particles in a useful size range directly, without the need for subsequent processing, and is carried out by forming a dispersion of small liquid particles of the crystalline polymer in certain aprotic liquids containing 0. 1 to 20% by weight of the polymer of an acid-modified polymer of propylene in a specified manner, cooling the dispersion with agitation until the liquid particles solidify and recovering the particles.