发明名称 Axial or cone spiral mandrel distributor for a blown film installation and method for manufacturing a multi-layered film
摘要 <p>The axial or conical spiral distributor for a blown film line with an inner spiral mandrel slot (3) has an inner spiral flock (12, 13, 14) and with an outer spiral mandrel slot (4, 5, 6) having an outer spiral flock. The envelope of the spiral flocks of the spiral mandrel slot defines an inner and an outer active surface. Each outer active surface has a lesser height (15) with regard to a predominant number of inner active surfaces. An independent claim is included for a manufacturing method of a multilayered film.</p>
申请公布号 EP1958756(A1) 申请公布日期 2008.08.20
申请号 EP20070023833 申请日期 2007.12.10
申请人 KIEFEL EXTRUSION GMBH 发明人 HENNES, JOCHEN, DR.
分类号 B29C47/20 主分类号 B29C47/20
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