公开(公告)号：US3600748A

公开(公告)日：1971-08-24

申请号：US3600748D

申请日：1969-05-01

Applicant: BASF CORP

Inventor： FAEHNDRICH KNUD ,  LINDNER EDMUND

IPC: B29C47/30 ,  B29C47/86 ,  B29F3/00

CPC classification number: B29C47/30 ,  B29C47/0016 ,  B29C47/0019 ,  B29C47/0021 ,  B29C47/0023 ,  B29C47/827 ,  B29C47/86 ,  B29C47/862 ,  B29C47/864

Abstract: Extrusion die embodying a heated rear section, a cooled front section with a plurality of extrusion orifices therein, passage means extending through the heated rear section for feeding thermoplastic polymer melt to the orifices, means such as an air space insulating the cooled front section from the heated rear section, and thin-walled, melt-conducting ring gaskets bridging the space between said sections.