Packaged article covered with special film
US4225049A · kind A · utility
21Cited by
2References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 14, 1979 |
| Grant date | Sep 30, 1980 |
| Priority date | — |
| Expiry date | Jun 14, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C71/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A vessel such as a glass bottle having a narrow-necked portion is protected by coating with a stretched film of crosslinked polyolefin resin having specific characteristics. The film holds the vessel very tightly through the shrink tension of the heat-shrunk film at the narrower part and through the elastic tension of the elongated film at the wider part. The protected vessel has excellent effect for preventing scattering of glass fragments at the time of breaking as well as good display effect and cap-seal effect. The coated film has also good printability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.