发明名称 |
IMPROVEMENTS IN AND RELATING TO THE EDGE-BONDING OF SHEET MATERIAL |
摘要 |
When a packaging container is formed by sealing an area of sheet material to the edge of another area of sheet material, the L-joint or T-joint so formed is sometimes liable to rupture when subjected to blows or strain. According to this invention that danger is reduced or eliminated by moulding a zone (4) of an end closure panel (3) abutting on the container wall edge to which it is jointed so that it forms a flange resting against and bonded to the face of said wall (1). The flange may be provided with a lip (6) projecting from a short length of the edge of said closure panel. |
申请公布号 |
EP0105652(B1) |
申请公布日期 |
1986.11.20 |
申请号 |
EP19830305428 |
申请日期 |
1983.09.15 |
申请人 |
TETRA PAK INTERNATIONAL AB |
发明人 |
STARK, SVEN OLOF SOREN;ANDERSSON, LARS-OLOF |
分类号 |
B65B7/28;B29C53/00;B29C65/00;B29C65/02;B31B17/00;B65D8/02;B65D17/50;B65D77/20 |
主分类号 |
B65B7/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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