Electron-beam adhesion-promoting treatment of polyester film base for magnetic recording media
US4543268A · kind A · utility
5Cited by
13References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 1984 |
| Grant date | Sep 24, 1985 |
| Priority date | — |
| Expiry date | Jul 5, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2483/005
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The magnetizable layer of a magnetic recording medium which has a flexible polyester film base is better adhered to the film base and better resists abrasion if the film base is first subjected to electron-beam irradiation while passing through an inert atmosphere such as nitrogen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.