Varistor ink formulations
US6334964B1 · kind B1 · utility
10Cited by
39References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1999 |
| Grant date | Jan 1, 2002 |
| Priority date | — |
| Expiry date | Jul 14, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/5445
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A thixotropic ink for use in manufacturing a varistor comprising the following constituents:a) zinc oxide,b) ceramic structure influencing additives including bismuth oxide, boric acid, boron oxide, chromium oxide, cobalt oxide, magnesium oxide and tin oxide,c) a grain growth influencing additive selected from the group consisting of antimony oxide, silicon dioxide and titanium dioxide,d) an organic solvent carrier,e) an organic viscosity influencing additive, andf) an organic binder.The composition may serve as a ceramic ink for use in the manufacture of multilayer varistors, especially using a screen printing process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.