Alumina-silica binder for coating compositions
US4171227A · kind A · utility
5Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1978 |
| Grant date | Oct 16, 1979 |
| Priority date | — |
| Expiry date | Jan 19, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D1/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A binder system useful in formulating coatings for glass, metal, wood and especially light diffusive coatings for glass light bulb envelopes is disclosed. Excellent coatings can be formed using a binder system comprising dispersible colloidal particles of alumina and finely divided, precipitated silica. When a stable dispersion of these two materials is combined properly with a pigment and/or filler system and then dried upon a glass, metal or wood surface, a tough, continuous, tightly adhering coating is formed. By using the correct pigments, a light diffusive coating for light bulb envelopes can be formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.