METHOD FOR THE PREPARATION OF COPOLYMERS OF ETHYLENE/NORBORNENE-TYPE MONOMERS WITH CATIONIC PALLADIUM CATALYSTS

摘要

A method of preparing generally amorphous copolymers of ethylene and at least one norbornene (NB)-type comonomer. This method comprises polymerizing said monomers in a diluent or in bulk in the presence of a cationic palladium catalyst resulting from reacting a chelating ligand with a palladium (II) compound. Specific copolymers of ethylene and substituted norbornene-type monomers are also claimed.