专利检索 ap:"Dennis L. Funck" 第 1 页

1.

发明授权
Process for extruding polyethylene 失效
标题翻译：挤出聚乙烯的方法

公开(公告)号：UST978005I4

公开(公告)日：1979-01-02

申请号：US891063

申请日：1978-03-28

申请人： Dennis L. Funck

发明人： Dennis L. Funck

IPC分类号： B29C47/00

CPC分类号： B29C47/0009 , B29C47/0023 , B29C47/0026 , B29C47/0057

摘要： a process is provided wherein polyethylene is melt-extruded in tubular form while simultaneously maintaining an environment of an inert gas such as nitrogen internally of the tubular form of polyethylene to preclude formation of a layer of large spherulites.