Method of making a heat-sealable oriented polypropylene film
US4198256A · kind A · utility
30Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1978 |
| Grant date | Apr 15, 1980 |
| Priority date | — |
| Expiry date | Feb 9, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31928
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A heat-sealable oriented plastic film comprising an oriented polypropylene film having on at least one surface a heat-sealable layer comprising a predominantly linear random copolymer of ethylene and up to 12 mole percent of at least one further alpha-olefin having at least three carbon atoms per molecule.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.