SUPPORTED METALLOCENE CATALYST AND OLEFIN POLYMERIZATION USING THE SAME

• Main Authors: LEE, DO HUN, LEE, BUN YEOL, LEE, JU EUN, OH, JAE SEUNG
• Format: Patent
• Language: English; Korean
• Published: 15.01.2001
• Edition: 7
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

PURPOSE: The catalyst having a functional group that facilitates the preparation of the supported metallocene catalyst for olefin polymerization by utilizing a reaction of the functional group of a ligand such as acetal, ketal, tertiary alkoxyalkyl, benzyloxyalkyl, substituted benzyloxyalkyl, monothioacetal, or monothioketal with highly reactive silica dehydroxylated above 600 deg.C is provided, which is suitable for conventional slurry or gas phase polymerization processes. CONSTITUTION: In a process of a catalyst component for olefin polymerization easy to manufacture a supported metallocene catalyst, at least one hydrogen radical present in R1, R2 or B of a metallocene compound represented by the formula: (C5R1m)pBs(C5R1m)MQ or formula 2 is substituted by a radical selected from the group consisting of radical represented by a formula 3, 4 and 5. The metallocene compounds are strongly supported on the inorganic support due to the strong chemical bond of the ligand of the metallocene compound with the silica surface , which leads to minimized leaching of the catalyst during the activation process. Therefore, the supported catalyst allows the olefin polymerization process to proceed without any fouling in the reactor with a slurry or a gas phase process.