A SOLID CATALYST FOR PROPYLENE-BASED BLOCK COPOLYMERIZATION AND A METHOD FOR PREPARATION OF BLOCK COPOLYMER
The present invention relates to a method for preparing a solid catalyst for preparation of polypropylene. Particularly, the present invention provides a method for preparing a solid catalyst including a carrier produced through a reaction of a dialkoxymagnesium with a metal halide, titanium halide,...
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| Format: | Patent |
| Sprache: | eng ; kor |
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| Zusammenfassung: | The present invention relates to a method for preparing a solid catalyst for preparation of polypropylene. Particularly, the present invention provides a method for preparing a solid catalyst including a carrier produced through a reaction of a dialkoxymagnesium with a metal halide, titanium halide, two types of non-aromatic organic electron donors, or the like, and a method for preparing a propylene-based block copolymer through the copolymerization of propylene-alphaolefin using the solid catalyst. Particularly, the organic electron donor used according to the present invention is a combination of two types of non-aromatic internal electron donors. The copolymerization with alphaolefin using the solid catalyst system according to the present invention can provide a block copolymer having a high content of rubber.
본 발명은 폴리프로필렌 제조용 고체촉매의 제조방법에 대한 것으로써 디알콕시마그네슘을 금속할라이드와의 반응을 통해서 생성된 담체와 티타늄할라이드, 2종의 비방향족 유기전자공여체 등으로 이루어진 고체촉매 제조방법 및 이를 이용한 프로필렌-알파올레핀의 공중합을 통한 프로필렌계 블록 공중합체 제조방법을 제공하는 것이다. 특히 본 발명에 사용하는 유기전자공여체는 2종의 비방향족 내부전자공여체를 혼합하여 사용하는 것으로써 본 발명에서 제시하는 고체촉매 시스템을 사용한 알파올레핀과의 공중합을 통하여 높은 고무함량의 블록공중합체를 제조할 수 있다. |
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