PROCESS FOR THE SYNTHESIS OF POLY (VINYL ALCOHOL) AND/OR POLY (VINYL ACETATE) WITH SPHERICAL MORPHOLOGY AND SHELL- AND-NUCLEUS STRUCTURE AND ITS USE IN VASCULAR EMBOLIZATION

摘要

"The process of su00ecntese of poly (vinyl alcohol) and / or poly (vinyl acetate) on the morphology and structure of spherical shell core and its use in vascular embolization.This invention describes a process of synthesis of spherical particles of poly (vinyl alcohol) PVA and / or poly (vinyl acetate) (PVAc with shell core structure from the total hydrolysis or P.Arcial in aqueous caustic, with obtaining particles of PVA / PVAc with spherical morphology controlled, to be used as vascular embolization.