摘要:
The compounds of the formula I or Ia ##STR1## in which R.sup.1 is alkyl, aryl, alkoxy, alkenyl, arylalkyl, alkylaryl, aryloxy, fluoroalkyl, halogenoaryl, alkynyl, trialkylsilyl or a heteroaromatic radical,R.sup.2, R.sup.3 and R.sup.4, in addition to hydrogen, have the meanings given under R.sup.1 andR.sup.5 is hydrogen, alkyl, fluoroalkyl or alkenyl, can be obtained in a one-stage process by reaction of a compound II ##STR2## with (substituted) cyclopentadiene in the presence of a base. The compounds I and Ia are suitable as ligands for metallocene complexes which are used as catalysts in olefin polymerization.
摘要翻译:其中R 1是烷基,芳基,烷氧基,烯基,芳基烷基,烷基芳基,芳氧基,氟代烷基,卤代芳基,炔基,三烷基甲硅烷基或杂芳族基团的式I或Ia化合物(Ⅰ) R 2,R 3和R 4除氢之外,具有R 1和R 5为氢,烷基,氟烷基或烯基的含义,可以通过化合物II与(取代的)反应在一步法中获得, 环戊二烯在碱的存在下反应。 化合物I和Ia适合用作茂金属络合物的配体,其用作烯烃聚合中的催化剂。
摘要:
The present invention relates to a stereorigid transition metal compound having as ligands a cyclopentadienyl group and a substituted or unsubstituted heteroatom which are connected to one another via a monocyclic or polycyclic ring system, with the cyclopentadienyl group being fused onto the monocyclic or polycyclic ring system. The transition metal compound of the invention is suitable as a catalyst component for olefin polymerization.
摘要:
The present invention relates to a stereorigid metallocene compound containing, as ligands, at least two substituted or unsubstituted cyclopentadienyl groups which are bonded to one another via a monocyclic or polycyclic ring system, where at least one cyclopentadienyl group is fused to the monocyclic or polycyclic ring system, and to a process for the preparation of a cycloolefin copolymer. The cycloolefin copolymers obtained in this way have high tear strengths and are suitable for the production of extrusion parts and injection moldings.
摘要:
The present invention relates to zwitterionic neutral transition metal compounds. The compounds are suitable as catalyst components for the polymerization of olefins.
摘要:
The present invention relates to zwitterionic neutral transition metal compounds. The compounds are suitable as catalyst components for the polymerization of olefins.
摘要:
The present invention relates to a stereorigid metallocene compound containing, as ligands, at least two substituted or unsubstituted cyclopentadienyl groups which are bonded to one another via a monocyclic or polycyclic ring system, where at least one cyclopentadienyl group is fused to the monocyclic or polycyclic ring system, and to a process for the preparation of a cycloolefin copolymer. The cycloolefin copolymers obtained in this way have high tear strengths and are suitable for the production of extrusion parts and injection moldings.
摘要:
The present invention relates to zwitterionic neutral transition metal compounds. The compounds are suitable as catalyst components for the polymerization of olefins.
摘要:
The present invention relates to a process for the preparation of a polyolefin by polymerization of at least one olefin in the presence of a stereorigid metallocene compound containing, as ligands, at least two substituted or unsubstituted cyclopentadienyl groups bonded to one another via a monocyclic or polycyclic ring system, in which at least one cyclopentadienyl group is fused to the monocyclic or polycyclic ring system.
摘要:
The invention relates to a method for producing special transition metal compounds, to novel transition metal compounds and to their use for the polymerization of olefins.
摘要:
A process for preparing salt-like compounds of the formula (1), (C6R115)3MR2 (I) where R1 are identical or different and are each a hydrogen atom, a halogen atom, C1-C20-alkyl, C6-C14-aryl, C1-C10-alkoxy, C2-C10-alkenyl, C7-C20-arylalkyl, C7-C20-alkylaryl, C6-C10-aryloxy, C1-C10-haloalkyl, C6-C10-haloaryl, C2-C10-alkynyl or C3-C20-alkylsilyl, M is an element of main group III of the Periodic Table of the Elements, and R2 is a substituted or unsubstituted heterocycle, and the use of such compounds in catalyst systems for preparing polyolefins.