Cardboard laminate for foodstuffs and method for production thereof
US4300969A · kind A · utility
22Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 1, 1980 |
| Grant date | Nov 17, 1981 |
| Priority date | — |
| Expiry date | Feb 1, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3192
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A laminate for use in cartons for sterilized milk, fruit juices etc. consists of a cardboard web, a layer of heat-sealable thermoplastic material, preferably polyethylene, on the side of the laminate which is to form the outer sides of the cartons, and three layers of plastic material on the other side. Of these three layers, the middle layer consists of polyvinylidene chloride and the two others both consist of a plastic material of the same type as on the outer side. The innermost of these layers may be colored.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.