公开(公告)号：WO1994014883A1

公开(公告)日：1994-07-07

申请号：PCT/DE1993001207

申请日：1993-12-16

Applicant: NORDENIA VERPACKUNGSWERKE GMBH ,  LORENZ, Arnulf

Inventor： NORDENIA VERPACKUNGSWERKE GMBH

IPC: C08J11/06

CPC classification number: C08J11/06 ,  B29B17/02 ,  B29B2017/0289 ,  B29B2017/0293 ,  B29K2023/00 ,  B29K2023/06 ,  B29K2105/065 ,  B29L2007/008 ,  B29L2009/006 ,  C08J2323/02 ,  Y02W30/622 ,  Y02W30/701 ,  Y10S264/913 ,  Y10S264/92

Abstract: Described are methods of removing solvent residues and/or nitrocellulose residues from a pre-purified polyolefin, in particular from pre-purified polyethylene recycling cuts, the polyolefin either being treated with washing water, the solvent driven off and simultaneously the nitrocellulose washed out of the polyolefin, or the polyolefin being washed with purified solvent, the solvent separated off mechanically and the solvent residues remaining with the polyolefin expelled by a stream of nitrogen. Also described are devices for carrying out these methods.

公开(公告)号：WO1997038832A1

公开(公告)日：1997-10-23

申请号：PCT/DE1997000752

申请日：1997-04-15

Applicant: NORDENIA VERPACKUNGSWERKE GMBH ,  BRAUER, Jochen ,  OLBERDING, Helmut ,  WALSER, Hans-Peter

Inventor： NORDENIA VERPACKUNGSWERKE GMBH

IPC: B26F01/00

CPC classification number: B26D7/2614 ,  B21D28/36 ,  B26F1/24

Abstract: A device for perforating webs of foil, in particular plastic foil, has at least one pair of rollers through which the foil is moved. The pair of rollers includes a spiked roller with spikes which extend radially from its outer surface, and a mating roller held against the spiked roller and whose outer surface has a lining which can be penetrated by the point of each spike, for example an elastic outer ply. The outer surface of the spiked roller has at least one recess in which a spike is arranged in such a way that only a section of its point protrudes by a predetermined extent beyond the outer surface.

Abstract translation: 用于穿孔网状薄膜的装置，特别是塑料，具有至少一个通过从膜辊对泄漏。 在对组成的针辊的辊具有径向定向到其侧表面的针和从一对辊，其被保持在系统中的滚针，并且其外表面设置有一个浸入的相应针的尖端使方向的设备，例如，弹性外层。 针辊的侧向表面具有至少一个凹部，其中，针容纳，使得只有它的前端的一部分由超过所述外表面的预定量突出。