Self-tacky packaging film
US5641569A · kind A · utility
2Cited by
9References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1995 |
| Grant date | Jun 24, 1997 |
| Priority date | — |
| Expiry date | Jul 11, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31913
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A self-tacky packaging film which comprises a multi-layer film comprising: PA1 (A) two outermost, surface layers comprising a polyethylene based resin and PA1 (B) at least one core layer, between the layers (A), comprising a polypropylene based resin having a melting point of 140.degree. C. or more, at least one side of the multi-layer film being irradiated with an ionizing radiation, is excellent in tackiness, a microwave oven suitability and "saw edge"-cutting characteristics and has an appropriate flexibility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.