Pouring mouth member for container
US6722531B2 · kind B2 · utility
11Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2001 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | May 23, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2575/583
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A pouring mouth member for a container includes an intermediate resin layer having barrier property and a fold-back portion is formed on at least one end portion of the intermediate resin layer having barrier property. Further, due to an inner layer resin and/or an outer layer resin provided to an outer periphery of this fold-back portion, the exposure of the resin having barrier property can be surely prevented and, at the same time, a cut edge of the intermediate resin layer having barrier property is effectively sealed between the inner and outer layer resins since the cut edge is also in a fold-back state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.