Solvent-based fluorescent inks for writing instruments based upon pigment dispersions in non-aqueous solvents
US6425948B1 · kind B1 · utility
14Cited by
16References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2000 |
| Grant date | Jul 30, 2002 |
| Priority date | — |
| Expiry date | Nov 15, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/17
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A non-aqueous fluorescent ink composition suitable for use in writing instruments is described comprising a fluorescent pigment dispersion and a high boiling point organic solvent. The ink composition may also include resins, plasticizers, antiskinning agents, lubricants and stabilizers. The fluorescent ink composition exhibits a brilliant appearance in masscolor and when written on paper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.