公开(公告)号：US4340722A

公开(公告)日：1982-07-20

申请号：US200092

申请日：1980-10-23

申请人： Claude Arnal ,  Jean-Barnard Pompon ,  Robert Roullet

发明人： Claude Arnal ,  Jean-Barnard Pompon ,  Robert Roullet

IPC分类号： C08F14/00 ,  C08F6/00 ,  C08F6/06 ,  C08F6/20 ,  C08F14/06 ,  C08L1/00 ,  C08L27/00 ,  C08L27/06

CPC分类号： C08F6/20 ,  Y10S526/909

摘要： A method of preparing homo and co-polymers of vinyl chloride in the form of a powder adapted to give plastisols, in which a latex of homo or co-polymers of vinyl chloride, containing from 30 to 60% by weight of dry material and comprising two populations of particles with specific granulometric properties, is concentrated by eliminating a fraction of the aqueous phase in the liquid state, then the residual water is dried off. The dry material content of the concentrated latex is from 50 to 80% by weight, and the absolute difference between the dry material content of the latex before and after concentration is over 10% by weight.

摘要翻译： 制备适于提供增塑溶胶的粉末形式的氯乙烯的均聚物和共聚物的方法，其中含有30-60重量％干物质的氯乙烯均聚物或共聚物的胶乳包含 通过消除液相中的一部分水相来浓缩具有特定粒度特性的两个颗粒群，然后将残留的水干燥。 浓缩胶乳的干物质含量为50〜80重量％，浓度前后胶乳的干物质含量绝对值超过10重量％。