Surface treatment of photothermally crystallizable, chemically-machinable glass-ceramic articles
US4328305A · kind A · utility
6Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 9, 1981 |
| Grant date | May 4, 1982 |
| Priority date | — |
| Expiry date | Jan 9, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C10/0027
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention is directed to a method for treating the surface of photothermally crystallizable chemically-machinable glass-ceramic articles to render them non-sticking when brought into contact with certain organic materials. More particularly, the invention is drawn to the treatment of photothermally crystallizable, chemically-machinable glass-ceramic head pads for use in conjunction with information storage discs with SO.sub.2 vapors to render them non-sticking with respect to those discs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.