Aqueous ink jet inks for postal metering
US6176908A · kind A · utility
27Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1999 |
| Grant date | Jan 23, 2001 |
| Priority date | — |
| Expiry date | Sep 20, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/50
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Aqueous, fluorescent red ink jet inks which meet US Postal Service requirements for metered mail are disclosed and comprise an aqueous vehicle, a red or magenta pigment, a polymeric dispersant, a fluorescent dye and, optionally a hydrotrope additive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.