公开(公告)号：US06171536B2

公开(公告)日：2001-01-09

申请号：US09058492

申请日：1998-04-10

申请人： William O. Novak ,  J. Richard Goodall

发明人： William O. Novak ,  J. Richard Goodall

IPC分类号： D01D110

CPC分类号： D01D1/106

摘要： A method and apparatus for melt spinning molten polymeric material into filaments, preferably embodied in the form of a spin pack assembly, utilizes an annular polymer filter formed of a screen mesh material to have a U-shaped axial cross-section defining an open end oriented to face upwardly for receiving polymer within the annular interior of the screen to flow outwardly therefrom to a downstream spinneret for extrusion. The filter eliminates any need to utilize sand or other filter material contained by the screen as a primary or auxiliary filtration medium and enables effective polymer flow substantially through the entire surface area of the screen without stagnation of material flow.

摘要翻译： 将熔融聚合物材料熔融纺丝成长丝的方法和装置，优选以纺丝组件的形式体现，利用由筛网材料形成的环形聚合物过滤器具有限定开口端定向的U形轴向横截面 面向上以在屏幕的环形内部中接收聚合物从其向外流动到用于挤出的下游喷丝头。 过滤器不需要使用筛网所含的砂或其他过滤材料作为主要或辅助过滤介质，并且使得有效聚合物基本上流过筛网的整个表面区域而不会停滞物料流。