Process for preparing ink jet inks having improved properties
US5310778A · kind A · utility
151Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1992 |
| Grant date | May 10, 1994 |
| Priority date | — |
| Expiry date | Aug 25, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2101/35
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for preparing aqueous pigmented ink jet inks with improved properties, comprising the steps of (a) charging a rubber two-roll milling apparatus with a pigment and a polymeric dispersant; (b) milling to obtain a dispersion of pigment with polymeric dispersant; and (c) dispersing the dispersion in an aqueous carrier medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.