Ultraviolet curing printing inks having improved shelf life
US4129486A · kind A · utility
19Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1978 |
| Grant date | Dec 12, 1978 |
| Priority date | — |
| Expiry date | May 9, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/121
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention provides for improved printing inks which cure upon exposure to ultraviolet radiation and furthermore demonstrate greatly extended shelf lives and stability as compared to prior art inks. The photosensitive component of the ink comprises a mixture of Michler's ketone and an o-halogen substituted hexa-aryl biimidizolyl compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.