Thick film NTC thermistor compositions
US5122302A · kind A · utility
13Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1991 |
| Grant date | Jun 16, 1992 |
| Priority date | — |
| Expiry date | Sep 30, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C8/22
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Thick film thermistor paste comprising an admixture of finely divided particles consisting essentially of a) a conductive phase consisting of (1) at least one oxide of a platinum group metal having a positive TCR, and (2) Co.sub.2 RuO.sub.4, b) an inorganic binder having a Dilatometer softening point of 450.degree.-750.degree. C. which contains transition metal oxides and is free of alkali metal oxides, c) a filler selected from vitreous silica, zircon and mixtures thereof, all of (a) through (c) being dispersed in, d) an organic medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.