Olefin packaging laminate
US4293608A · kind A · utility
33Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1979 |
| Grant date | Oct 6, 1981 |
| Priority date | — |
| Expiry date | Oct 15, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31917
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A heat sealable packaging material comprising (A) a stretched base layer formed of a propylene polymer and (B) a stretched surface layer formed of a blend of a propylene-ethylene copolymer and a C.sub.4 -C.sub.10 .alpha.-olefin-propylene copolymer in a weight proportion of 20:80 to 94:6 by weight on at least one surface of said base layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.