Blended films, structures therefrom, and methods of making and using them
US5108844A · kind A · utility
106Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1989 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Dec 28, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31928
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Blends having improved adhesion to each other when coextruded into multilayer films, such films, film-packages such as pouches from such films, and methods for making and using the films and film-packages are disclosed and claimed. Improved adhesion between layers results from adjusting the components of the blends of the layers. In addition, improved adhesion between layers results from reducing the temperature of the chill roll in the cast coextrusion process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.