Thermochromic composition
US4717710A · kind A · utility
75Cited by
12References
6Claims
0Family size
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Key dates
| Filing date | Jan 3, 1985 |
| Grant date | Jan 5, 1988 |
| Priority date | — |
| Expiry date | Jan 3, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/913
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermochromic composition comprising (1) an electron-donating chromogenic material, (2) a 1,2,3-triazole compound, (3) a weakly basic, sparingly soluble azomethine or carboxylic acid primary amine salt, and (4) an alcohol, amide or ester serving as a solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.