Provided is a process for making thermoplastic polymer pellets. The process has the following steps: (a) melting a thermoplastic polymer to form a polymer melt; (b) extruding the melt through a die to form a substantially continuous molten polymer extrudate wherein the die has a contact surface bearing a polymer coating having a surface energy of less than 25 mN/m at 20° C.; (c) cooling the extrudate to form a cooled extrudate; and (d) pelletizing the cooled extrudate to form a plurality of polymer pellets. Provided is also a polymer pellet shipping system and a stable thermoplastic polymer pellet.
申请公布号
EP2480389(B1)
申请公布日期
2016.11.16
申请号
EP20100810412
申请日期
2010.08.12
申请人
EXXONMOBIL CHEMICAL PATENTS INC.
发明人
TSOU, ANDY, H.;YEGANEH, MOHSEN, S.;HALL, GREGORY, K.