Heat sealable packaging film with drawable primer
US5017430A · kind A · utility
10Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1988 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Nov 25, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31928
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An oriented heat sealable multilayer film structure having a polyolefin film substrate, a thermoplastic primer coating on the substrate and a heat sealable acrylic or polyvinylidene coating applied to at least one primer coated surface. The primer has a glass transition of from about 0.degree. to about 50.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.