Compatibilized blend comprising skin polymer, ethylene-vinyl alcohol copolymer, and poly-2-oxazoline
US5032434A · kind A · utility
13Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1989 |
| Grant date | Jul 16, 1991 |
| Priority date | — |
| Expiry date | Apr 7, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3192
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A polymer blend comprises a skin polymer, an ethylene-vinyl alcohol copolymer and a poly-2-oxazoline. The polymer blend possesses good gas barrier properties and excellent mechanical strength. A particularly preferred blend comprises an improved reclaim layer of a six-layer composite sheet suitable for thermoforming into a food package.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.