Patent ID: 6506857
Filing Date: 2003-01-14
Classification: C07F,C08F

Abstract:
A polymerization process for ethylene copolymers having a density of about 0.850 to about 0.940 comprising contacting, under solution polymerization conditions at a reaction temperature at or above 60Â° C. to 225Â° C., ethylene and one or more comonomers capable of insertion polymerization with a catalyst compound derived from a Group 4 organometallic compound comprising two ancillary monanionic ligands, each of which independently may be substituted or unsubstituted, wherein the ligands are bonded by a covalent bridge containing a substituted single Group 14 atom, the substitution on said Group 14 atom comprising aryl groups at least one of which contains at least one hydrocarbylsilyl substituent group.