Energy curable flexographic inks incorporating grafted pigments
US6284816A · kind A · utility
17Cited by
32References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1998 |
| Grant date | Sep 4, 2001 |
| Priority date | — |
| Expiry date | Nov 23, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S522/909
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Solvent-free, energy curable flexographic printing inks which contain a pigment; a rheological additive having the structure P-(U-Y).sub.s, wherein P is the residue of an organic pigment or dye, Y is a polyalkylene oxide moiety, U is a linking moiety covalently bonding Y to P and s is an integer from 1 to 3; and an energy curable liquid vehicle which may be a ultraviolet cationic or a free radical initiated polymerization system, cured by actinic radiation; and optionally containing a photoinitiating system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.