Preparation of low-density ethylene copolymers in fluid bed reactor
    4.
    发明授权
    Preparation of low-density ethylene copolymers in fluid bed reactor 失效
    在流化床反应器中制备低密度乙烯共聚物

    公开(公告)号:US4482687A

    公开(公告)日:1984-11-13

    申请号:US506772

    申请日:1983-06-24

    IPC分类号: C08F2/34 C08F210/16 C08F10/02

    摘要: Ethylene copolymers having a density of about 0.91 to 0.94 and a melt flow ratio of about .gtoreq.26 to .ltoreq.40 are readily produced in a low pressure gas phase process at a productivity of .gtoreq.500,000 pounds of polymer per pound of Ti with a catalyst formed from selected organo aluminum compounds and a composition prepared by copulverizing magnesium dihalide with a complex obtained by contacting a titanium compound of the structure Ti(OR).sub.a X.sub.b with an ether, ester, ketone or amine,wherein R is a C.sub.1 to C.sub.14 aliphatic or aromatic hydrocarbon radical, or COR' where R' is a C.sub.1 to C.sub.14 aliphatic or aromatic hydrocarbon radical,X is Cl, Br, I or mixtures thereof, a is 0 or 1, b is 2 to 4 inclusive and a+b=3 or 4.

    摘要翻译: 密度为约0.91至0.94,熔体流动比约> = = 26至<= 40的乙烯共聚物在低压气相法中容易产生,生产率≥500,000磅聚合物/磅 Ti与由选择的有机铝化合物形成的催化剂组成的组合物,以及通过使二卤化镁与通过使Ti(OR)a Xb结构的钛化合物与醚,酯,酮或胺接触而获得的络合物制备的组合物,其中R是C1 C 14脂族或芳族烃基,或COR',其中R'为C 1至C 14脂族或芳族烃基,X为Cl,Br,I或其混合物,a为0或1,b为2至4, + b = 3或4。

    Process for the production of sticky polymers
    8.
    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。

    Process for the production of sticky polymers
    9.
    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。

    Olefin polymerization catalysts adapted for gas phase processes
    10.
    发明授权
    Olefin polymerization catalysts adapted for gas phase processes 失效
    适用于气相工艺的烯烃聚合催化剂

    公开(公告)号:US4585840A

    公开(公告)日:1986-04-29

    申请号:US724272

    申请日:1985-04-17

    IPC分类号: C08F10/00 C08F4/02

    摘要: Solid polyolefin catalysts are adapted for use in low pressure gas phase fluid bed polymerization processes by being mixed with selected particulate organic support materials in a high speed bladed finishing device so as to cause the catalysts materials to become embedded in, and/or adhered to, softened particles of the support material.

    摘要翻译: 固体聚烯烃催化剂适用于低压气相流化床聚合方法,通过在高速叶片整理装置中与选定的颗粒状有机支撑材料混合,以使催化剂材料嵌入和/ 软化颗粒的支撑材料。