Correction fluid for water-fast inks
US5872162A · kind A · utility
13Cited by
13References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 10, 1994 |
| Grant date | Feb 16, 1999 |
| Priority date | — |
| Expiry date | May 10, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D10/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Correction fluids are provided which include an opacifying pigment, a water-fast ink fixing agent including a cationic non-film-forming polymer, a binder including a film-forming polymer compatible with the ink fixing agent, and water. The new correction fluids have improved "bleed" resistance when used to correct water-fast inks, such as ball-point pen inks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.