Extruding high molecular polyethylene foil
申请公布号:DE2006798(A1)
申请号:DE19702006798
申请日期:1970.02.14
申请公布日期:1971.08.26
分类号:B29C47/00;B29C47/88
主分类号:B29C47/00
摘要:High-molecular, low-pressure polyethylene tube is extruded by first heating in screw extruder to just above softening temp., then extruding and cooling by a surrounding air flow tempered to several times room temp., while tube is inflated to stretch it. Object is to produce paper-like properties.