Method for the production of a multi-layer construction film
US5433908A · kind A · utility
4Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1993 |
| Grant date | Jul 18, 1995 |
| Priority date | — |
| Expiry date | Dec 8, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3192
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A multi-layer construction film is prepared by co-extrusion coating a molten multilayered polymer which satisfies the relationship: 0.08.ltoreq..eta.E/.eta.A.ltoreq.8, which comprises at least one layer (A) of ethylene-vinyl alcohol copolymer and having an ethylene content of 20-60 mol %, and a melt index of .eta.Eg/10 min., and at least one adhesive resin layer (B) of ethylene polymer having a melt index of .eta.Ag/10 min. and a density of not more than 0.9 g/cm.sup.3, onto a plastic film (C) in a manner that layer (B) is laminated adjacent to plastic film (C).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.