Method for forming barrier film
US6576294B1 · kind B1 · utility
15Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1993 |
| Grant date | Jun 10, 2003 |
| Priority date | — |
| Expiry date | May 14, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Barrier film with a high colorless transparency comprising a flexible plastic substrate. A barrier layer is formed on the surface and has a thickness ranging from approximately 50 to less than 200 Angstroms and is formed of a material selected from the group of aluminum oxide, tin oxide and yttrium oxide. An additional barrier layer formed of silicon dioxide may also be formed on the barrier layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.