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53. 发明授权

US5647495A Heat-resistant construction of a neck of a synthetic resin container 失效
标题翻译：合成树脂容器颈部的耐热结构
公开(公告)号：US5647495A
公开(公告)日：1997-07-15
申请号：US750930
申请日：1991-08-28
申请人： Hiroyuki Orimoto , Yoji Okuda
发明人： Hiroyuki Orimoto , Yoji Okuda
IPC分类号： B65D1/02 , B65D1/42 , B29C45/16 , B65D23/02 , B65D23/08
CPC分类号： B65D1/0215 , B65D1/023
摘要： A container, which may be injection molded in a single mold, includes a main body and a hollow cylindrical neck. The neck extends along a main axis and has a proximate end connected to the main body and an open distal end. The neck includes a generally cylindrical inner layer formed of a first thermoplastic material, a generally cylindrical middle layer located radially outward of the inner layer and formed of a second thermoplastic material having a greater heat resistance than the first thermoplastic material, and a generally cylindrical outer layer located radially outward of the middle layer so that the middle layer is at least partially sandwiched between the inner and outer layers. The outer layer is formed of the first thermoplastic material. An open end section extends from and is integral with the middle layer, is formed with the second thermoplastic material, and extends radially along the entire radial extent of the open distal end of the neck so that the entire open distal end of the neck is formed by the open end section.
摘要翻译：可以在单个模具中注射成型的容器包括主体和中空的圆柱形颈部。颈部沿着主轴线延伸并且具有连接到主体和近端的近端。颈部包括由第一热塑性材料形成的大致圆柱形的内层，大致圆柱形的中间层，位于内层的径向外侧，由与第一热塑性材料相比具有更大的耐热性的第二热塑性材料形成，层位于中间层的径向外侧，使得中间层至少部分地夹在内层和外层之间。外层由第一热塑性材料形成。开口端部从中间层延伸并且与中间层成一体，形成有第二热塑性材料，并且沿着颈部的开放远端的整个径向延伸部径向延伸，从而形成颈部的整个开口的远端由开放端部分。

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