High luster, flexible multilayered film with a polyamide outer layer containing nanodispersed filling material and utilization of said film for packaging foodstuffs
US6740422B1 · kind B1 · utility
1Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2001 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Apr 9, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31746
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Described is a flexible, multilayered film comprising, (i) an outer layer composed substantially of polyamide containing nanodispersed filing material (e.g., in an amount of from 0.1 and 3 wt. %), and (ii) at least one additional polyamide layer. The multilayered film of the present invention may be produced by flat film or blown film methods. Also described is a method of using the multilayered film of the present invention as a packaging for foodstuff.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.