| 摘要 |
Process for the production in water emulsion of polyvinyl acetate, in which partially hydrolysed polyvinyl acetate, prepared in emulsion under the form of micro-particles having a diameter suitable for copolymerization or to clamp themselves, right from the initial phases of reaction, to the micro-granules of polyvinyl chloride which are under formation and agglomeration, is used in the polymerization charge of the vinyl chloride. The final morphological characteristics of the polyvinyl chloride prepared by this method can be sensibly controlled and improved. |
