发明申请
US20060141184A1 Multistage process for producing hollow plastic articles from half shells
审中-公开
基本信息:
- 专利标题： Multistage process for producing hollow plastic articles from half shells
- 申请号：US10520536 申请日：2003-07-09
- 公开(公告)号：US20060141184A1 公开(公告)日：2006-06-29
- 发明人： Wolfgang Rohde , Jorg Meyer , Rainer Sattel , Jorg Schnorr , Bernhard Springholz , Roger Weinlein , Andreas Wust
- 申请人： Wolfgang Rohde , Jorg Meyer , Rainer Sattel , Jorg Schnorr , Bernhard Springholz , Roger Weinlein , Andreas Wust
- 申请人地址： DE Wesseling DE 50389
- 专利权人： Basell Polyolefine GmbH
- 当前专利权人： Basell Polyolefine GmbH
- 当前专利权人地址： DE Wesseling DE 50389
- 优先权： DE10231866.2 20020712
- 国际申请： PCT/EP03/07353 WO 20030709
- 主分类号： B32B27/08
- IPC分类号： B32B27/08 ; B29C69/00
摘要：
The present invention relates to a multistage process for producing hollow plastic articles, encompassing the following steps: a) producing a tubular plastic parison by means of extrusion or coextrusion; b) cutting open the plastic parison to produce two planar-surface parts; c) molding the planar-surface parts in two mold halves to give half shells, where a removable intermediate frame separates the mold halves from one another at least along the peripheral edges, so that the semifinished products/half shells are not in contact with one another; d) opening the mold halves and removing the intermediate frame; e) closing the mold halves, with the result that the half shells come into contact with one another along a peripheral rim; and f) bonding the half shells to give a hollow article.
IPC结构图谱:
| B | 作业；运输 |
| --B32 | 层状产品 |
| ----B32B | 层状产品，即由扁平的或非扁平的薄层，例如泡沫状的、蜂窝状的薄层构成的产品 |
| ------B32B27/00 | 实质上由合成树脂组成的层状产品 |
| --------B32B27/06 | .作为薄层的主要或惟一的成分，它与另一层由一种特定物质构成的薄层相贴 |
| ----------B32B27/08 | ..不同种类合成树脂的 |