Process for the production of sticky polymers
    3.
    发明授权
    Process for the production of sticky polymers 失效
    生产粘性聚合物的方法

    公开(公告)号:US5376743A

    公开(公告)日:1994-12-27

    申请号:US29821

    申请日:1993-03-11

    摘要: A process for the production of EPM or EPDM comprising contacting ethylene, propylene, and, optionally, one or more dienes, in a fluidized bed, at a temperature at or above the sticking temperature of the product resin, under polymerization conditions, with(i) a prepolymer containing a transition metal catalyst precursor with the proviso that the prepolymer is not sticky at the process temperature;(ii) a hydrocarbyl aluminum and/or a hydrocarbyl aluminum halide cocatalyst,; and, optionally,(iii) a halocarbon promoter; and, optionally,(iv) an inert particulate material having a mean particle size in the range of about 0.01 to about 150 microns wherein the particulate material is either contained in the prepolymer or is independent of the prepolymer,wherein the amount of prepolymer or the combined amount of prepolymer and inert particulate material is sufficient to essentially prevent agglomeration of the fluidized bed and the product resin.

    摘要翻译: 一种生产EPM或EPDM的方法,包括在聚合条件下,在聚合条件下,在等温或高于产物树脂的粘着温度的温度下,在流化床中使乙烯,丙烯和任选的一种或多种二烯与(i )含有过渡金属催化剂前体的预聚物,条件是预聚物在工艺温度下不粘; (ii)烃基铝和/或烃基卤化铝助催化剂; 和(iii)卤代烃促进剂; 和(iv)平均粒度在约0.01至约150微米范围内的惰性颗粒材料,其中颗粒材料包含在预聚物中或独立于预聚物,其中预聚物或 预聚物和惰性颗粒材料的组合量足以基本上防止流化床和产物树脂的团聚。

    Process for the production of sticky polymers
    4.
    发明授权
    Process for the production of sticky polymers 失效
    生产粘性聚合物的方法

    公开(公告)号:US5510433A

    公开(公告)日:1996-04-23

    申请号:US311138

    申请日:1994-09-23

    摘要: A process for the production of EPM or EPDM comprising contacting ethylene, propylene, and, optionally, one or more dienes, in a fluidized bed, at a temperature at or above the sticking temperature of the product resin, under polymerization conditions, with(i) a prepolymer containing a transition metal catalyst precursor with the proviso that the prepolymer is not sticky at the process temperature;(ii) a hydrocarbyl aluminum and/or a hydrocarbyl aluminum halide cocatalyst,; and, optionally,(iii) a halocarbon promoter; and, optionally,(iv) an inert particulate material having a mean particle size in the range of about 0.01 to about 150 microns wherein the particulate material is either contained in the prepolymer or is independent of the prepolymer,wherein the amount of prepolymer or the combined amount of prepolymer and inert particulate material is sufficient to essentially prevent agglomeration of the fluidized bed and the product resin.

    摘要翻译: 一种生产EPM或EPDM的方法,包括在聚合条件下,在聚合条件下,在等温或高于产物树脂的粘着温度的温度下,在流化床中使乙烯,丙烯和任选的一种或多种二烯与(i )含有过渡金属催化剂前体的预聚物,条件是预聚物在工艺温度下不粘; (ii)烃基铝和/或烃基卤化铝助催化剂; 和(iii)卤代烃促进剂; 和(iv)平均粒度在约0.01至约150微米范围内的惰性颗粒材料,其中颗粒材料包含在预聚物中或独立于预聚物,其中预聚物或 预聚物和惰性颗粒材料的组合量足以基本上防止流化床和产物树脂的团聚。