Patent ID: 8293674
Filing Date: 2012-10-23
Classification: C08F,C08G,G02F

Abstract:
1. A catalyst system for preparing a cyclic olefin addition polymer, comprising: a) a Group X transition metal compound; b) a compound comprising a neutral Group XV electron donor ligand having a cone angle of at least 160°; and c) a salt capable of offering an anion that can be weakly coordinated to the transition metal of the a) the Group X transition metal compound, wherein said a) the Group X transition metal compound is represented by the following Chemical Formula 1: wherein M is a Group X metal; and R is an anionic ligand of acetylacetonate (R″C(O)CHC(O)R″), or acetate group offering σ- and π-bonds, wherein each of R″ is hydrogen; C