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A method for the production of alpha - olefin polymers with high stereospecificity.
A method for the production of alpha - olefin polymers with high stereospecificity.
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机译：一种具有高立体特异性的α-烯烃聚合物的生产方法。
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摘要
PURPOSE:To obtain the subject polymer having excellent mechanical properties. etc., and extremely low contents of catalyst residue and amorphous polymer by using a highly active novel catalyst system consisting of a specific Ti- containing solid catalyst component, an organic Al compound and a specific Si compound. CONSTITUTION:A Ti compound of formula Ti(OR1)nX4-n (R1 is 1-20C hydrocarbon group; X is halogen; n is 0-4) is reduced with an organic Mg compound in the presence of an organic Si compound containing Si-O bond and the obtained solid product is treated with an ester compound and then with a mixture of an ether compound and TiCl4 or a mixture of an ether compound. TiCl4 and an ester compound to obtain a solid catalyst component containing a trivalent Ti compound. The objective polymer is produced by (co)polymerizing an alpha-olefin using a catalyst consisting of (A) the above solid catalyst component, (B) an organic Al compound and (C) an Si compound of formula R2R3Si(OR4)2 (R2 is 5-20C alicyclic hydrocarbon group; R3 is 2-12C chain hydrocarbon group; R4 is 1-20C hydrocarbon group).
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机译：目的：获得具有优良机械性能的目标聚合物。通过使用由特定的含钛固体催化剂组分，有机铝化合物和特定的硅化合物组成的高活性新型催化剂体系，催化剂残留物和非晶态聚合物的含量极低。组成：式Ti（OR 1）n X 4-n（R 1为1-20C烃基; X为卤素; n为0-4）的Ti化合物在有氮的存在下被有机Mg化合物还原。用酯化合物然后用醚化合物和TiCl 4的混合物或醚化合物的混合物处理含有Si-O键的有机Si化合物，所得固体产物进行处理。 TiCl 4和酯化合物，得到含有三价Ti化合物的固体催化剂组分。通过使用由（A）上述固体催化剂组分，（B）有机Al化合物和（C）式R 2 R 2的Si化合物组成的催化剂使α-烯烃（共）聚合来制备目标聚合物。 3 Si（OR 4）2（R 2为5-20C的脂环族烃基; R 3为2-12C的链状烃基; R 4为1-20C的烃基）。
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