Patent Number: 6,169,052

Title: Metallocene and catalyst used for the preparation of chemically homogeneous cycloolefin copolymers

Abstract: Chemically homogeneous cycloolefin copolymers of polycyclic olefins, such as, for example, norbornene or tetracyclododecene, with cycloolefins and/or acyclic olefins are obtained without ring opening and in a high space-time yield if a catalyst system is used which comprises an aluminoxane and a stereorigid metallocene compound of an element from groups IVb to VIb, of the formula ##STR1## the part of the metallocene molecule formed by M.sup.1 and the substituents R.sup.16 -R.sup.17 having C.sub.1 -symmetry or being in the meso-form.

Inventors: Brekner; Michael-Joachim (Frankfurt am Main, DE), Osan; Frank (Kelkheim, DE), Rohrmann; Jurgen (Liederbach, DE), Antberg; Martin (Hofheim am Taunus, DE)

Assignee: Targor GmbH

International Classification: C07F 17/00 (20060101); C08F 10/00 (20060101); C08F 232/00 (20060101); C08F 232/08 (20060101); C08F 4/00 (20060101); C08F 4/659 (20060101); B01J 031/00 ()

Expiration Date: 01/02/2018