Magnetic recording disk with polycyanate ester overlayer
US6150001A · kind A · utility
4Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1998 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | Mar 30, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Reactive monomers of cyanate esters are vapor deposited onto thin film disks used for magnetic recording. The monomer films are then irradiated with ultraviolet (UV) light to polymerize the deposited monomer to form a solid, robust polycyanate ester overlayer on the disk that becomes smoother, more corrosion resistant and, when lubricated, more durable than disks without the overlayer. The polycyanate ester overlayer can either replace the conventional carbon overcoat or allow a substantially thinner carbon overcoat to be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.