ALUMINUM-FREE MONOCYCLOPENTADIENYL METALLOCENE CATALYSTS FOR OLEFIN POLYMERIZATION

• Main Authors: HLATKY, GREGORY GEORGE, CANICH, JOANN, MARIE, TURNER, HOWARD WILLIAM
• Format: Patent
• Language: English; Korean
• Published: 12.11.1997
• Edition: 6
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING

올레핀 중합을 위한 알루미늄-비함유 모노사이클로 펜타디에닐 메탈로센 촉매 본 발명은 고분자량의 중합체를 제조하기 위해 올레핀을 중합시키는데 사용할수 있는 IV-B족 전이금속 성분 및 활성화제성분을 포함하는 촉매 시스템에 관한 것이다. IV-B족 전이 금속 성분은 단일 사이클로펜타디에닐 리간드 및 단일 이중원자 리간드를 함유하며 상기 리간드를 서로 연결지을 수 있으며; 활성화제 성분은 양자를 줄 수 있는 브론스테드 산일 수 있는 양이온 (이후에는 L'-H로서 표시하고 여기서, L'는 중성루이스 염기이고 H는 수소이다) 및 양립가능한 비배위성 음이온을 포함한다. The invention relates to a process for olefin polymerisation at a temperature of from -100 to 0°C or 100 to 300°C using a catalyst system of the following formula :wherein: M is Zr, Hf or Ti and is in its highest formal oxidation state (+4, d⁰ complex);(C₅H5-y-xRx) is a cyclopentadienyl ring which is substituted with from zero to five substituent groups R, "x" is 0, 1, 2, 3, 4 or 5 denoting the degree of substitution, and each substituent group R is, independently, a radical selected from a group consisting of C₁-C₂₀ hydrocarbyl radicals, substituted C₁-C₂₀ hydrocarbyl radicals wherein one or more hydrogen atoms is replaced by a halogen atom, C₁-C₂₀ hydrocarbyl-substituted metalloid radicals wherein the metalloid is selected from the Group IV A of the Periodic Table of Elements, and halogen radicals, or (C₅H5-y-xRx) is a cyclopentadienyl ring in which two adjacent R-groups are joined forming a C₄-C₂₀ ring to give a polycyclic cyclopentadienyl ligand;(JR'z-l-y) is a heteroatom ligand in which J is an element with a coordination number of three from Group VA or and element with a coordination number of two from Group VI A of the Periodic Table of Elements, and each R' is, independently a radical selected from a group consisting of C₁-C₂₀ hydrocarbyl radicals, substituted C₁-C₂₀ hydrocarbyl radicalswherein one or more hydrogen atoms is replaced by a halogen atom, and "z" is the coordination of number of the element J;each Q may be independently, hydride, C₁-C₅₀ hydrocarbyl radicals, substituted hydrocarbyl radicals wherein one or more hydrogen atom is replaced by an electron-withdrawing group such as a halogen atom, or alkoxide radical, or C₁-C₅₀ hydrocarbyl-substituted metalloid radicals wherein the metalloid is selected from the Group IV-A of the Periodic Table of Elements, provided that where any Q is a hydrocarbyl such Q is different from(C₅H5-y-xRx),or both Q together may be an alkylidene, olefin, acetylene or a cyclometallated hydrocarbyl,"y" is 0 or 1; when "y" is 1, B is a covalent bridging group containing a Group IV A or V A element,L is a neutral Lewis base; and "w" is a number from 0 to 3,[A]⁻ is a labile, bulky anion which is either a single coordination complex having a plurality of lipophilic radicals covalently coordinated to and shielding a charge bearing metal or metalloid centre or an anionic complex containing a plurality of boron atoms.