Method for preparing Ziegler-Natta catalyst for polymerization of linear low-density polyethylene

The present invention relates to a method for preparing a Ziegler-Natta catalyst for polymerizing linear low-density polyethylene (LLDPE). More specifically, the method for preparing a Ziegler-Natta catalyst for polymerizing LLDPE according to one embodiment of the present invention comprises a step...

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Bibliographische Detailangaben
Hauptverfasser:	YANG JINHAEK, KANG MUN HYUNG, EO MAENGSUN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention relates to a method for preparing a Ziegler-Natta catalyst for polymerizing linear low-density polyethylene (LLDPE). More specifically, the method for preparing a Ziegler-Natta catalyst for polymerizing LLDPE according to one embodiment of the present invention comprises a step of mixing magnesium chloride with an excessive amount of alcohol to prepare a magnesium chloride carrier containing magnesium chloride-alcoholide. When the method for preparing a Ziegler-Natta catalyst according to one embodiment of the present invention is used, the composition of catalysts can be easily controlled to effectively prepare linear low-density polyethylene with excellent copolymerization performance, which can realize various physical properties. 본 개시는 선형 저밀도 폴리에틸렌(Linear low-density polyethylene, LLDPE) 중합용 지글러-나타 촉매의 제조방법에 관한 것으로, 구체적으로 일 구현예에 따른 선형 저밀도 폴리에틸렌 중합용 지글러-나타 촉매의 제조방법은 염화마그네슘에 과량의 알코올을 혼합하여 염화마그네슘-알코올화물을 포함하는 염화마그네슘 담지체를 제조하는 단계를 포함하는 제조방법에 관한 것이다. 일 구현예에 따른 지글러-나타 촉매의 제조방법은 촉매 조성 제어가 용이하므로 다양한 물성 구현이 가능한 우수한 공중합 성능의 선형 저밀도 폴리에틸렌을 효과적으로 제조할 수 있다.