Web with sealed pockets
US7041361B2 · kind B2 · utility
7Cited by
8References
11Claims
0Family size
Inventors
Key dates
| Filing date | Sep 12, 2001 |
| Grant date | May 9, 2006 |
| Priority date | — |
| Expiry date | Sep 12, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24678
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A web is formed from two sheets of polymeric material. An upper sheet includes pockets of any form. A lower sheet is subsequently bonded to the upper sheet which causes the sealing of each of the pockets. A web thus formed may be laminated with a metallic foil or metallized polymeric film. Such a web may also be laminated with a similar web in a face to face relationship so that the pockets interdigitate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.