Basf Aktiengesellschaft

Adnan S Abu-Surrah

Bernhard Rieger

Joachim Queisser

Markus Schmid

Michael Gepr&auml;gs

Hans-Joachim Muller

Hans Christoph Horn

Roland Spahl

Michael Geprags

Roland Wursche

Martin Moller

Harm-Anton Klok

Peter Eibeck

The invention relates to the production of homopolymers, co-copolymers or block copolymers from cycloolefinic monomer units characterized in that polymerization occurs in the presence of a catalyst of general formula (I), and optionally in the presence of an additive, wherein the substituents and indices have the following meaning: M is a metal from group VIII B of the periodic table of elements; E,, E,are independently from each other an element from group V A of the periodic table of elements; Z is a bridging structural unit; Ar stands for annelated aryl units independent of each other; L,, L,stands for formally uncharged Lewis base ligands; X means monovalent or bivalent anions; k means 1 or 2; l, m, n represent 1 or 2, whereby m&times;n&equals;1.

Production of homocopolymers, co-polymers or block copolymers from cycloolefinicmonomer units

Linear, thermoplastic, elastomeric copolymers comprise carbon monoxide and at least one olefinic C,- to C,-monomer and have an average molecular weight M,greater than 15,000 g/mol and a T,-value of less than &minus;20&deg; C., and comprise carbon monoxide, at least one olefinic C,- to C,-monomer and at least one olefinic C,- to C,-monomer and have an average molecular weight M,greater than 40,000 g/mol and a T,-value of less than 20&deg; C.

Thermoplastic elastomer carbon monoxide/olefin copolymers

Linear alternating functionalized .alpha.-olefin/CO-copolymers and their

Thermoplastic elastomeric carbon monoxide/olefin copolymers

Growing community of inventors

Ulm, Germany

Adnan S Abu-Surrah