公开(公告)号：US3941761A

公开(公告)日：1976-03-02

申请号：US535190

申请日：1974-12-23

申请人： Thomas J. Pullukat ,  Mitsuzo Shida ,  Robert L. Gillilan

发明人： Thomas J. Pullukat ,  Mitsuzo Shida ,  Robert L. Gillilan

IPC分类号： C08F10/00 ,  C08F4/02 ,  C08F10/02

CPC分类号： C08F10/00 ,  C08F2410/03 ,  C08F2410/04

摘要： Methods of making polymers from polymerizable 1-olefins which comprise polymerizing at least one 1-olefin with a catalyst system consisting essentially of a mixture of (1) a support which is a finely divided insoluble inorganic support material such as silica, alumina, zirconia or thoria or mixtures thereof containing titanium, zirconium or nickel prepared by fluidizing the finely divided support in the form of a bed with a substantially dry gas while adding to the bed at an elevated temperature, while fluidizing, a compound of the class consisting of titanium or zirconium or nickel esters, or halides or mixtures thereof which were further calcined at a higher temperature and (2) an organotin chromate containing the group essentially of the formula ##EQU1## and (3) cocatalytic amounts of an alkyl aluminum compound of the formula R.sub.a AlX.sub.b in each of which formula R is a hydrocarbon radical containing from 1 to about 14 carbon atoms, X is hydrogen, halogen or alkoxy, a is an integer of 1 to 3, b is an integer of 0 to 2 and the sum of a and b is 3, the system having an aluminum-chromium ratio of at least 2 to 1.

摘要翻译： 从可聚合的1-烯烃制备聚合物的方法包括使催化剂体系聚合至少一种1-烯烃，催化剂体系基本上由以下组成的混合物组成：（1）作为细分散的不溶性无机载体材料如二氧化硅，氧化铝，氧化锆的载体或 thoria或其混合物，其含有钛，锆或镍，其通过以基本上干燥的气体以床形式流化细分散的载体而同时在升高的温度下在高温下加入到床中，同时流化，由钛或 锆或镍酯，或其卤化物或其混合物，其在较高温度下进一步煅烧，和（2）含有基本上为式O的化合物的平均有机锡R3Sn-O-Cr-O-SnR 3 PARALLEL O的有机锡铬酸盐和（3）助催化剂 量的式RaAlXb的烷基铝化合物，其中R为含有1至约14个碳原子的烃基，X为氢，卤素或 烷氧基，a为1〜3的整数，b为0〜2的整数，a与b的和为3，该系统的铝 - 铬比为2〜1。