Process for making self-gelled resin solutions for ink formulations
US5763565A · kind A · utility
4Cited by
24References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1997 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Jan 13, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S101/43
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The specification describes a process for making gelled ink resins which exhibit improved properties. In a preferred embodiment, a rosin-based or hydrocarbon-based resin is mixed with an organic solvent and reacted with a crosslink agent under conditions sufficient to produce a substantially covalently cross-link gelled resin. The resulting gelled resin resists viscosity breakdown under high shear conditions and may be used directly for making ink compositions, obviating the need for further gelation and avoiding the use of conventional organo-metallic gelling agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.