Inventors:
Sivaram Krishnan - Pittsburgh PA
James B. Johnson - Washington PA
Susan H. Bates - Heath OH
Edward M. Anderson - Newark OH
Assignee:
Miles Inc. - Pittsburgh PA
International Classification:
C08K 515
Abstract:
A melt-stable, pigmented thermoplastic molding composition is disclosed. Accordingly, to the composition which contains polycarbonate resin and pigment there is imparted an improved level of melt stability upon the incorporation therewith of an additive amount of a melt stabilizer conforming to ##STR1## where R. sub. 1, R. sub. 2, R. sub. 3 and n are defined. In an additional embodiment the invention relates to a color concentrate containing polycarbonate resin, up to 30% of a pigment and an effective amount of said stabilizer.