Laminated paperboard container with absorption resistance means, and blank for constructing same
US4489112A · kind A · utility
19Cited by
9References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1983 |
| Grant date | Dec 18, 1984 |
| Priority date | — |
| Expiry date | Mar 28, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31913
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The drawings and description disclose a heat sealable container for edible oils and other types of oils, and a blank for constructing same, having a laminated wall construction of suitable oil resistant barriers or layers which are compatible with one another insofar as bonding and sealing are concerned. Such wall construction includes central layers of aluminum foil and fluorochemically treated paperboard secured to one another by a suitable adhesive, an ionomer layer, such as Surlyn, formed on each outer paperboard and foil surface, and a layer of thermoplastic material, such as polyethylene, formed on each outer Surlyn surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.