Abstract: Underwater melt pelletizer dies which have a highly thermally conductive pathway from their heating source to the vicinity of the polymer exit end of their die holes and have a thermally insulating material at that end of their die holes have improved operability and can pelletize thermoplastics which are otherwise difficult or impossible to pelletize with such an apparatus.
Type:
Grant
Filed:
July 20, 2004
Date of Patent:
June 5, 2007
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
Richard Alan Jackson, Dennis Jack Royer, Marion Glen Waggoner