公开(公告)号：EP1855956A4

公开(公告)日：2009-03-18

申请号：EP06705250

申请日：2006-02-28

申请人： STANPAC INC

发明人： WITT STEPHEN H

IPC分类号： B65D55/06 ,  B29C65/10 ,  B65D43/10

CPC分类号： B29C65/10 ,  B29C65/4815 ,  B29C65/58 ,  B29C65/72 ,  B29C66/112 ,  B29C66/12441 ,  B29C66/12449 ,  B29C66/12469 ,  B29C66/131 ,  B29C66/242 ,  B29C66/5344 ,  B29C66/53461 ,  B29C66/541 ,  B29C66/542 ,  B29C66/71 ,  B29C66/73921 ,  B29K2023/06 ,  B29K2023/0633 ,  B29K2101/12 ,  B29K2711/123 ,  B29L2031/565 ,  B65D43/0256 ,  B65D85/78 ,  B65D2543/00083 ,  B65D2543/00101 ,  B65D2543/00231 ,  B65D2543/0024 ,  B65D2543/00268 ,  B65D2543/00296 ,  B65D2543/00314 ,  B65D2543/00435 ,  B65D2543/00527 ,  B65D2543/00537 ,  B65D2543/00638 ,  B65D2543/00685 ,  B65D2543/0074 ,  B65D2543/00796 ,  B29K2023/04

摘要： Conventional adhesive and contact welding methods for holding the paperboard and plastic components of a composite closure together present a number disadvantages and do not lend themselves easily to mass production. The present invention describes two novel approaches, firstly the pre-assembly heating of the closure components with directed hot air to partially melt the thermoplastic surfaces and allow the parts to be immediately assembled sealingly and, secondly, a novel construction of plastic and paperboard composite closure in which the plastic rim is of a two-piece snap-fit constructions which firmly grips the top panel of the paperboard lid.