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    • 10. 发明申请
    • POLYMERIC BLENDS BASED ON POLYPROPYLENE AND POLYBUTYLENE TEREPHTHALATE RESINS
    • 聚丙烯聚苯乙烯和聚苯乙烯三癸酸酯树脂
    • WO1996006871A1
    • 1996-03-07
    • PCT/NO1994000139
    • 1994-08-26
    • BOREALIS A/SKOTLAR, Hans, KristianHU, Guo, HuaSUN, Yi, JunLAMBLA, Morand
    • BOREALIS A/S
    • C08F255/02
    • C08L67/02C08F255/02C08L23/10C08L51/06C08L2666/18C08L2666/02C08L2666/14C08L2666/24C08L2666/06
    • A process of producing a compatibilized blend of polypropylene and polybutylene terephthalate resins by a continuous single step extrusion process performed in an extruder, preferably in an inert atmosphere, comprising the steps of: (i) introducing into a first feed zone of the extruder a polypropylene polymer, an allylepoxy compound, a styrenic compound and a peroxide initiator; the reagents being heated to a temperature which is higher than the melting point of the polypropylene polymer and the decomposition temperature of said peroxide while being subjected to continuous intimate mixing; and (ii) introducing a polybutylene terephthalate into a second feed zone of the extruder downstream of the first one, at a position where said polypropylene polymer of step (i) is in a molten state to achieve a melting and intimate mixing of said polybutylene terephthalate with said melted polypropylene resin; and (iii) extruding the obtained blend. A compatibilized blend of polypropylene and polybutylene terephthalate polymers, having synergistic properties of both said polymers, is obtained by the process. The obtained blend may be used as an engineering plastic in manufacturing articles for technical use.
    • 通过在挤出机中优选在惰性气氛中进行的连续单步骤挤出法生产聚丙烯和聚对苯二甲酸丁二醇酯树脂的相容化共混物的方法,包括以下步骤:(i)将挤出机的第一进料区域引入聚丙烯 聚合物,烯丙基醚化合物,苯乙烯类化合物和过氧化物引发剂; 将试剂加热到高于聚丙烯聚合物的熔点的温度和所述过氧化物的分解温度,同时进行连续的紧密混合; 和(ii)在步骤(i)的所述聚丙烯聚合物处于熔融状态以使所述聚对苯二甲酸丁二醇酯熔融和紧密混合的位置处,将聚对苯二甲酸丁二醇酯引入第一挤出机下游的挤出机的第二进料区中 与所述熔融聚丙烯树脂; 和(iii)挤出所获得的共混物。 通过该方法得到具有两种所述聚合物的协同性质的聚丙烯和聚对苯二甲酸丁二醇酯聚合物的相容化共混物。 获得的混合物可用作制造用于技术用途的制品的工程塑料。