公开(公告)号：US4551439A

公开(公告)日：1985-11-05

申请号：US700592

申请日：1985-02-11

申请人： Masato Harada ,  Shinya Miya ,  Sadahiko Yamada ,  Makoto Iijima

发明人： Masato Harada ,  Shinya Miya ,  Sadahiko Yamada ,  Makoto Iijima

IPC分类号： C08F4/00 ,  C08F4/44 ,  C08F4/50 ,  C08F4/58 ,  C08F4/60 ,  C08F4/64 ,  C08F4/658 ,  C08F4/68 ,  C08F10/00

CPC分类号： C08F10/00

摘要： A solid catalyst component for olefin polymerization having a high polymerization activity and affording a highly stereoregular polymer having a good particulate form, and a process for producing the same are provided, which component indispensably contains Mg, Ti, Al, halogen and alkoxy group; has two absorption peaks (absorbances A.sub.1 and A.sub.2) at specified wavenumbers within a specified region of spectra according to infrared spectrophotometry, A.sub.1 /A.sub.2 and A.sub.1 /A.sub.3 (A.sub.3 : an absorbance at a specified wavenumber) being each in a specified range; and has X-ray diffraction spectra distinctive from those of Mg halide or its complex with electron donor, and which process consists of step I of dissolving (a) anhydrous Mg dihalide, (b) a specified orthotitanic or polytitanic acid ester and (c) a specified alcohol in an inert hydrocarbon solvent to prepare component A; step II of mixing and reacting component A with component B consisting of (d) a specified organic acid ester, (e) a specified Al halide and (f) a specified Si halide to prepare solid product (I); and step III of reacting solid product (I) with component C consisting of (g) a specified Ti halide and/or (h) a specified vanadyl or vanadium halide to obtain solid product (II) as the objective catalyst component.

摘要翻译： 提供具有高聚合活性的烯烃聚合用固体催化剂组分，并提供具有良好颗粒形式的高度立构规整性聚合物及其制备方法，该组分不可缺少地含有Mg，Ti，Al，卤素和烷氧基; 根据红外分光光度法，A1 / A2和A1 / A3（A3：指定波数处的吸光度），在指定的光谱区域内的特定波数处具有两个吸收峰（吸光度A1和A2） 并且具有与卤化镁或其与电子给体的络合物不同的X射线衍射光谱，该方法由步骤I（a）溶解（a）无水二卤化镁，（b）特定的原钛酸或聚钛酸酯和（c） 指定的醇在惰性烃溶剂中制备组分A; 将组分A与由（d）指定的有机酸酯，（e）指定的Al卤化物和（f）特定的Si卤化物组成的组分B混合和反应以制备固体产物（I）的步骤II; 和步骤III，使固体产物（I）与由（g）特定的Ti卤化物和/或（h）特定的氧钒或卤化钒组成的组分C反应，得到作为目标催化剂组分的固体产物（II）。