Methods and compositions for good dispersion high loading color masterbatches

摘要

A highly loaded and well-dispersed masterbatch composition and process for making thereof from a split stream process. The masterbatch composition includes a colorant, a thermoplastic carrier, a metallocene polymer processing aid, and optionally an additive. The split stream may be formed of a primary feed and a secondary feed. The primary and second feeds are combined by at least one of the following: supplying the secondary feed in either the same feed port as the primary feed, in a stream located upstream the primary feed, in a stream located downstream the primary feed, or a combination thereof.