Abrasion and crack resistant package laminate
US4241130A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 1, 1978 |
| Grant date | Dec 23, 1980 |
| Priority date | — |
| Expiry date | May 1, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A package laminate is described which is abrasion and crack resistant and particularly suitable for use in wrapping food products. The package laminate is formed with a biaxially oriented nylon film bonded to one side of an inner located metallic foil with an intermediate bonding layer. A smooth abrasion resistant and moisture impermeable layer in the form of a triextrusion product is bonded to the other side of the metallic foil with an intermediate bonding layer. The completed package laminate is characterized by its resistance to cracking from repeated flexure while enabling a straight, predetermined directional tear without a jagged edge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.