Patent ID: 6455650
Filing Date: 2002-09-24
Classification: C08F,Y02P

Abstract:
A process for preparing a polymer containing polycyclic repeating units comprising contacting at least one polycycloolefin monomer with a high activity Group 10 transition metal catalyst complex of the formula:[(Râ€²)zM(Lâ€²)x(Lâ€³)y]b[WCA]d to obtain a polymer product that contains 100 ppm or less of residual Group 10 transition metal prior to purification, wherein [(Râ€²)zM(Lâ€²)x(Lâ€³)y] is a cation complex where M represents a Group 10 transition metal; Râ€² represents an anionic hydrocarbyl containing ligand; Lâ€² represents a Group neutral electron donor ligand; Lâ€³ represents a labile neutral electron donor ligand; x is 1 or 2; and y is 0, 1, 2, or 3; and z is 0 or 1, wherein the sum of x, y, and z is 4; [WCA] represents a weakly coordinating counteranion complex; and b and d are numbers representing the number of times the cation complex and weakly coordinating counteranion complex are taken to balance the electronic charge on the overall catalyst complex.