Patent ID: 8802797
Filing Date: 2014-08-12
Classification: C08F

Abstract:
1. A process to produce polymacromonomers comprising contacting (1) a vinyl-terminated macromonomer having an Mn of 125 Da or more and at least 70% vinyl termination (as measured by 1 H NMR) relative to total unsaturations, and (2) up to 40 wt % of C 2 to C 18 comonomer, with (3) a catalyst system capable of oligomerizing vinyl-terminated macromonomer, in the presence of a chain transfer agent, under polymerization conditions at a temperature from 20° C. to 180° C. and a reaction time of 1 min to 24 hours to produce a polymacromonomer having a degree of polymerization greater than 10, a branching index g′( vis ) less than 0.9, a Tg from -10° C. to 40° C., and an Mn of greater than or equal to about 5000 Da.