Abstract: 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.
Abstract: A masterbatch composition is provided that includes a colorant, a thermoplastic carrier, a metallocene polymer processing aid, and optionally an additive. Also provided is a method for making a masterbatch composition and a method for making a colorized polymer.
Type:
Grant
Filed:
April 4, 2007
Date of Patent:
October 28, 2008
Assignee:
Carolina Color Corporation
Inventors:
Jeffrey S. Smink, Ronald M. Harris, Robert R. Powers, Andrew J. Schwartz, Rick D. Martz