Patent ID: 6060563
Filing Date: 2000-05-09
Classification: C08G

Abstract:
A graft copolymer composition in which the copolymer contains cationic groups in the polymer chain having the structure: ##STR6## wherein R and R.sup.1 are independently selected from the group consisting of hydrogen and a C.sub.1 to C.sub.4 alkyl group, X is a halogen and PL comprises an elastomeric pendant graft polymer segment derived from at least one anionically polymerized monomer, wherein R.sub.1 Z.sup.+ R.sub.2 R.sub.3 is derived from a nucleophillic initiator selected from the group consisting of tertiary amino lithium compounds and tertiary phosphino lithium compounds, Z is selected from the group consisting of nitrogen and phosphorus, R.sub.1 and R.sub.2 are the same or different alkyl radicals containing 1 to 4 carbon atoms, R.sub.3 is an organic radical containing 1 to 6 carbon atoms and containing a negatively charged filler material, wherein the ammonium or phosphonium cationic group enhances both the mechanical properties of the copolymer and dispersion therein of said negatively charged filler material.