PRODUCTION OF 1-OLEFIN POLYMER, CATALYST USED THEREFORE AND NOVEL METALLOCENE COMPOUND

• Main Authors: SPALECK WALTER, WINTER ANDREAS
• Format: Patent
• Language: English
• Published: 10.03.1998
• Edition: 6
• 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

PROBLEM TO BE SOLVED: To obtain defect-free olefin polymerization catalyst which not only markedly improves catalytic activity but also can give a polymer having improved particle shape by pre-activating metallocene with an aluminoxane in the polymerization of a 1-olefin or the copolymerization of a 1-olefin with ethylene in the presence of a transition metal catalyst. SOLUTION: This metallocene is represented by formula I or II (wherein Me is a group IV b or V b metal in the periodical table of elements; R and R are each a 1-10C alkyl, a 6-10C aryl or the like; R is a 1-4C linear hydrocarbon group or a 4-6C cyclic hydrocarbon group; R and R are each a monocyclic or polycyclic hydrocarbon residue which forms a sandwich structure together with the central atom, desirably indenyl, tetrahydroindenyl, cyclopentadienyl or the like; R and R are each a halogen, a 1-10C alkyl, a 6-10C aryl or the like; and R and R are each a substituted cyclopentadienyl).