Recording liquid
US4396429A · kind A · utility
12Cited by
0References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1982 |
| Grant date | Aug 2, 1983 |
| Priority date | — |
| Expiry date | Jun 17, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A recording liquid comprising an aqueous liquid composition containing a water-soluble dye as recording agent is characterized in that the content of m-phenylenediamine in said composition is 1000 ppm or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.