Heat-shrinkable laminate film
US4600616A · kind A · utility
12Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 1984 |
| Grant date | Jul 15, 1986 |
| Priority date | — |
| Expiry date | Nov 1, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3192
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed herein is a heat-shrinkable laminate film comprising outer layers of a polyolefin, a gas-barrier layer of a copolymer of vinylidene chloride, at least one intermediate layer of an ionomer and adhesive layers disposed between any of the above layers, the total thickness of the intermediate layer(s) of an ionomer being 5 to 20% of the total thickness of the heat-shrinkable laminate film. The heat-shrinkable laminate film is particularly useful in packaging foodstuffs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.