Patent ID: 7241839
Filing Date: 2007-07-10
Classification: C08G

Abstract:
1. A process for forming a compatibilized blend, comprising; a) providing a first polymer having at least one carboxylic acid functional group or at least one anhydride of two carboxylic acid groups, or a combination thereof, terminal or pendant to said first polymer, or combinations thereof, b) anionically polymerizing a second polymer from at least one conjugated diene monomer having from 4 to 8 carbon atoms or at least one vinyl aromatic monomer having from 8 to 20 carbon atoms, or combinations thereof, and functionalizing said second polymer by reacting a growing anionic end of said second polymer with an imine, thereby forming at least one amine containing terminal group on said polymer, and c) mixing and forming a compatibilized blend of said first polymer and said second polymer at a temperature above the softening temperature of said first and second polymers.