摘要：

A process is disclosed for manufacturing minute capsules, en masse, in a liquid manufacturing vehicle wherein the capsules contain water or aqueous solutions. The capsules have seamless walls of a specific kind of hydrophobic polymeric material which polymeric material has been found particularly impervious to permeation and diffusion by the aqueous contents. The hydrophobic polymeric material used is poly(ethylene-co-vinyl acetate) having the vinyl acetate groups hydrolyzed to vinyl alcohol groups in the amount of 38 to 55 percent.

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