公开(公告)号：US4088625A

公开(公告)日：1978-05-09

申请号：US716106

申请日：1976-08-20

申请人： Erwin Gubisch ,  Walter Kudlich ,  Walter Popp ,  Herbert Reinicke

发明人： Erwin Gubisch ,  Walter Kudlich ,  Walter Popp ,  Herbert Reinicke

IPC分类号： C08L27/00 ,  C08J3/00 ,  C08J3/12 ,  C08K7/16 ,  C08L1/00 ,  C08L23/00 ,  C08L23/08 ,  C08L27/06 ,  C08L31/04 ,  C08L57/00 ,  C08L101/00

CPC分类号： C08L23/08 ,  C08J3/005 ,  C08J3/12 ,  C08J3/122 ,  C08L27/06 ,  C08L31/04 ,  C08J2323/08 ,  Y10S526/92 ,  Y10S526/922

摘要： A process for the production of a pulverulent, tricklable mixture of ethylene/vinyl acetate copolymer and polyvinylchloride comprising the steps of mixing a mixture consisting essentially of (a) an ethylene/vinyl acetate copolymer having an acetate content of from 15% to 75% by weight, (b) powdery polyvinylchloride, in a mixture ratio of (a) to (b) of 1:3 to 2:1, and (c) from 0 to 5% by weight of the mixture of additives customary for polymer processing, in a high-speed mixture at temperatures above the softening temperature of said polyvinylchloride and below 170.degree. C., for a time sufficient to effect homogenization, quenching said homogenized mixture with water and removing the water, grinding the quenched product with the addition of from 0.5 to 10 parts by weight of an inert powder having particles in the submicroscopic range, in a high speed mill under passage of an airstream which is heated by friction, and recovering said pulverulent, tricklable mixture; as well as the powdery mixture so produced.

摘要翻译： 一种制备乙烯/乙酸乙烯酯共聚物和聚氯乙烯的粉状，可混合的混合物的方法，包括以下步骤：将主要由（a）乙酸酯含量为15％至75％的乙烯/乙酸乙烯酯共聚物组成的混合物混合， 重量，（b）粉末状聚氯乙烯，（a） - （b）的混合比例为1:3至2:1，和（c）0-5重量％的常规用于聚合物加工的添加剂混合物， 在高于所述聚氯乙烯的软化温度和低于170℃的温度的高速混合物中，足以实现均化的时间，用水淬灭所述均质混合物并除去水，研磨骤冷产物，加入 0.5〜10重量份在亚微观范围内具有颗粒的惰性粉末，在通过摩擦加热的气流通过的高速磨机中，并回收所述粉状的可混合混合物; 以及如此生产的粉末混合物。