SOLID CATALYST FOR PROPYLENE POLYMERIZATION AND METHOD OF PRODUCING BLOCK COPOLYMER USING THE SAME
申请人:Hanwha Total Petrochemical Co., Ltd.
公开号:EP3670546A1
公开(公告)日:2020-06-24
The present invention relates to a solid catalyst for propylene polymerization and a method of producing a propylene polymer or copolymer using the solid catalyst for propylene polymerization, and provides a solid catalyst which prepares a dialkoxymagnesium carrier and is formed of a carrier produced through a reaction of the carrier with a metal halide, a titanium halide, an organic electron donor, etc., and a method of producing a propylene polymer or copolymer through copolymerization of propylene-alpha olefin using the solid catalyst, wherein the dialkoxymagnesium carrier has an uniform particle size range of 10 to 100 µm and a spherical particle shape by adjusting injection amounts, injection numbers, and reaction temperatures of metal magnesium, alcohol and a reaction initiator during a reaction process of metal magnesium and alcohol.
Particularly, the present invention not only can produce polypropylene having high activity, excellent stereoregularity and hydrogen reactivity by performing a polymerization process through a solid catalyst which uses an internal electron donor including a carbonyl group and an alkoxy group out of two or more organic electron donors and is suggested in the present invention and a method of producing a propylene polymer or copolymer using the solid catalyst, but also can produce a block copolymer with a high rubber content by performing a copolymerization process with an alpha olefin.
本发明涉及一种用于丙烯聚合的固体催化剂和一种使用该用于丙烯聚合的固体催化剂生产丙烯聚合物或共聚物的方法,并提供了一种固体催化剂,该催化剂制备了一种二羰基镁载体,并由载体与金属卤化物、钛卤化物、有机电子供体等反应生成的载体形成、以及使用该固体催化剂通过丙烯-α-烯烃的共聚生产丙烯聚合物或共聚物的方法,其中通过在金属镁和醇的反应过程中调整金属镁、醇和反应引发剂的注入量、注入次数和反应温度,该二烷氧基镁载体具有 10 至 100 微米的均匀粒径范围和球形颗粒形状。
特别是,本发明不仅可以通过固体催化剂进行聚合过程生产出具有高活性、优异立体规整性和氢反应性的聚丙烯,该固体催化剂使用了本发明中提出的在两个或多个有机电子供体中包括一个羰基和一个烷氧基的内部电子供体,以及使用该固体催化剂生产丙烯聚合物或共聚物的方法,还可以通过与α-烯烃进行共聚过程生产出橡胶含量高的嵌段共聚物。