IMPACT IMPROVED FILLED POLYCARBONATE OR POLYESTER COMPOSITIONS

摘要

In various aspects, the disclosure relates to blended polymer compositions (e.g., polycarbonate, polycarbonate-polysiloxane copolymer, polyester compositions, etc.) comprising a polycarbonate component, a polyester component, or both; optional impact modifier(s); optional flame retardant; copolymer compatibilizer; and filler. The presence of the polymer compatibilizer improves the impact performance of the polymer blend.

主权项

1. A blended polymer composition with improved impact performance, comprising:
a) a polymer component comprising from about 0.1 wt. % to about 90 wt. % of a polycarbonate or from about 0.1 wt. % to about 90 wt. % of a polyester, or a combination of both; b) a filler component present in an amount ranging from about 2 wt. % to about 50 wt. % of; c) an impact modifier present in an amount ranging from about 0.5 wt. % to about 25 wt. %; and d) a polymer compatibilizer comprising a polyolefin functionalized with maleic anhydride, the polymer compatibilizer present in an amount ranging from about 0.5 wt. % to about 8 wt. %; wherein the combined weight percent value of all components does not exceed about 100 wt. %, wherein all weight percent values are based on the total weight of the composition; and wherein the blended polymer composition exhibits greater impact performance compared to a reference composition consisting essentially of substantially the same proportions of the same polymer component, the same filler component, and the same impact modifier, in the absence of the polymer compatibilizer component.