Composite vessel excellent in preservability and process for preparation thereof
US4551366A · kind A · utility
65Cited by
11References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1982 |
| Grant date | Nov 5, 1985 |
| Priority date | — |
| Expiry date | Dec 30, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1303
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is a function-separated composite vessel excellent in the easy openability, preservability and resistance to the deformation due to reduction of the pressure, which comprises a cup-shaped outer member composed of a paper substrate and a flexible seamless cup-shaped inner member composed of a gas-barrier plastic material, wherein the peripheral wall face of the inner member is substantially exactly fitted in the inner side of the outer member but is not bonded to the wall face of the outer member and an opening of the inner member is bonded to a curl portion or flange portion formed on an opening of the outer member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.