Photochromic hot melt ink compositions
US5593486A · kind A · utility
44Cited by
17References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1995 |
| Grant date | Jan 14, 1997 |
| Priority date | — |
| Expiry date | Dec 5, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/50
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a hot melt ink composition comprising (a) an ink vehicle, said ink vehicle being a solid at about 25.degree. C. and having a viscosity of from about 1 to about 20 centipoise at a temperature suitable for hot melt ink jet printing, said temperature being greater than about 45.degree. C., (b) a photochromic material, (c) an optional colorant, and (d) an optional propellant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.