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    • 1. 发明授权
    • Process for preparing polyolefins
    • 聚烯烃的制备方法
    • US4525555A
    • 1985-06-25
    • US561936
    • 1983-12-15
    • Yoshio TajimaMituji MiyoshiShoji SugitaKiyoshi KawabeKazuo Matsuura
    • Yoshio TajimaMituji MiyoshiShoji SugitaKiyoshi KawabeKazuo Matsuura
    • C08F4/10C08F4/12C08F4/16C08F4/50C08F4/64C08F10/00C08F4/44C08F10/04
    • C08F10/00
    • Provided is a process for preparing a polyolefin, characterized by polymerizing at least one .alpha.-olefin in the presence of a catalyst which comprises the combination of:[I] a solid catalyst component comprising a solid substance obtained by contacting the following components (1) through (3) with one another and (4) a titanium compound supported on said solid substance:(1) a magnesium halide,(2) a compound represented by the general formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are each a hydrocarbon radical having 1 to 24 carbon atoms, an alkoxy group, hydrogen, or a halogen atom, R.sup.4 is a hydrocarbon radical having 1 to 24 carbon atoms and n is 1.ltoreq.n.ltoreq.30, and(3) at least one compound selected from the group consisting of:(a) compounds represented by the general formula ##STR2## wherein R is hydrogen, a halogen atom, or a hydrocarbon radical having 1 to 24 carbon atoms, and r, p and q are integers satisfying the following conditions:1.ltoreq.r.ltoreq.3, 0.ltoreq.p
    • 提供了一种制备聚烯烃的方法,其特征在于在催化剂存在下使至少一种α-烯烃聚合,所述催化剂包含以下组合:[I]包含通过使下列组分(1)接触获得的固体物质的固体催化剂组分, 通过(3)彼此和(4)负载在所述固体物质上的钛化合物:(1)卤化镁,(2)由通式“IMAGE”表示的化合物,其中R 1,R 2和R 3各自为烃 具有1至24个碳原子的基团,烷氧基,氢或卤素原子,R 4是具有1至24个碳原子的烃基,n是1≤n≤30,和(3)至少一个 选自以下的化合物:(a)由通式表示的化合物,其中R是氢,卤素原子或具有1至24个碳原子的烃基,并且r,p和q是满足 以下条件:1 r + p + q <6,(b)烷基 亚磷酸酯,(c) - (e)氧,氮或含硫杂环羧酸酯,(f)烷基硅烷醇,(g)烷氧基硼卤化物,(h)烷基和/或烷氧基取代的亚砜,和(i) 取代的氨基甲酸酯[II]有机金属化合物; 和[III]由通式表示的化合物,其中R 1,R 2和R 3各自为具有1至24个碳原子的烃基,烷氧基,氢或卤素原子,R 4为具有1 至24个碳原子,n为1