Multilayer container
US4182457A · kind A · utility
56Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1977 |
| Grant date | Jan 8, 1980 |
| Priority date | — |
| Expiry date | Aug 3, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1379
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A transparent multi-layer container comprising a co-extrudate of an oxygen-barrier resin layer and an orienting resin layer which is monoaxially or biaxially oriented is disclosed. An adhesive resin layer is preferably interposed between the oxygen-barrier layer and the orienting resin layer, and this co-extrudate is drawn and molded at a specific temperature determined relatively to the melting points and softening points of the respective resins. This container is excellent in the combination of transparency, rigidity, mechanical strength, gas-barrier property and interlaminar peel strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.