Fast drying duplicating ink
US5395435A · kind A · utility
26Cited by
10References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 4, 1994 |
| Grant date | Mar 7, 1995 |
| Priority date | — |
| Expiry date | May 4, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/0235
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An water-in-oil emulsion duplicating ink comprising a water phase comprising an aqueous dispersion of oxidized carbon black and an oil phase comprising a saturated oil and an unsaturated oil. The ink compositions of the present invention dry quickly, and exhibit minimal dispersion in the paper upon which the ink is applied. The ink compositions of the present invention remain liquid for extended periods of time upon exposure to the atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.