Heat-shrinkable multilayer thermoplastic film
US6299984A · kind A · utility
42Cited by
0References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 7, 1999 |
| Grant date | Oct 9, 2001 |
| Priority date | — |
| Expiry date | Sep 7, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3175
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A highly oriented, heat-shrinkable, multi-layer film comprising a layer a) comprising a polyamide and an outer heat-sealing layer b) comprising a polyolefin, which film has been oriented at a stretching ratio .gtoreq. about 3.0:1 in the machine direction and at a stretching ratio .gtoreq. about 6.0:1 in the transverse direction, characterized in that the polyamide of layer a) is a crystalline or partially crystalline co-polyamide with a T.sub.g.ltoreq.100.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.