Styrenic resin incorporating recycled polystyrene

摘要

The present disclosure provides a styrenic resin incorporating post-consumer recycle polystyrene (PCR PS), and systems and methods for making the same. For example, a styrenic resin produced in accordance with present embodiments between approximately 1 weight percent and 9 weight percent PCR PS, has a melt flow rate (MFR) of less than approximately 2.0 g/10 min per ASTM D-1238-10, and an Mz+1 molecular weight of at least 700,000. The styrenic resin is produced by a free-radical polymerization process performed on a feed having PCR PS dissolved in monovinylarene monomer. The feed is produced in such a way so as to continuously remove contaminants commonly associated with PCR PS.

主权项

1. A styrenic resin comprising between approximately 1 weight percent and 9 weight percent post-consumer recycle polystyrene (PCR PS), wherein the styrenic resin has a melt flow rate (MFR) of less than approximately 2.0 g/10 min per ASTM D-1238-10 and an Mz+1 of at least approximately 700,000.