Differentially cross-linked multilayer film
US5055328A · kind A · utility
47Cited by
8References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1989 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | Jun 16, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31928
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A tubular article formed of multilayer differentially cross-linked heat sealable film suitable for the manufacture of bags used in the packaging of meats. The multilayer film contains at least two layers the inner of which is a heat sealable layer containing an antioxidant cross-linking inhibitor in an amount sufficient to inhibit the cross-linking of that layer by irradiation. Accordingly, upon exposure of the multilayer film to radiation, the outer layer will be cross-linked to a greater extent than the first heat sealable layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.