发明名称 |
PROCESS FOR PRODUCING PLASTIC RODS |
摘要 |
A process for producing a plastic rod, in particular round rods, suitable for machining is provided. The process includes extruding a plastic profile of a first plastic molding composition which forms the outermost layer of the plastic rod, and inserting a second plastic molding composition as a rod core into the profile within a calibrator downstream of the extruder. The first plastic molding composition contains at least 50% by weight of a semicrystalline thermoplastic and the first plastics moulding composition has the following properties: a) crystallite melting point Tm in accordance with ISO 11357 of at least 170° C., b) crystallization temperature Tk in accordance with ISO 11357 of at most 70 K below T. and c) enthalpy of fusion AH in accordance with ISO 11357 of at least 20 J/g.
|
申请公布号 |
US2012232531(A1) |
申请公布日期 |
2012.09.13 |
申请号 |
US201213396643 |
申请日期 |
2012.02.15 |
申请人 |
GOERING RAINER;HARTMANN MARKUS;KUHMANN KARL;KALTHOF BERNFRIED;EVONIK DEGUSSA GMBH |
发明人 |
GOERING RAINER;HARTMANN MARKUS;KUHMANN KARL;KALTHOF BERNFRIED |
分类号 |
A61B17/00;B29C47/06;B32B3/26 |
主分类号 |
A61B17/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|