Radiation curable ink compositions
US9540531B2 · kind B2 · utility
0Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2015 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | Dec 3, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/101
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention relates to radiation curable ink compositions comprising one or more mono-functional monomers, optionally one or more oligomers, one or more antioxidants capable to react with peroxy radicals to generate radicals to propagate polymerization, and one or more photoinitiators comprising at least an acylphosphine oxide, wherein the ratio of the antioxidants to acylphpsphine is 1:1 to 1:20 by weight. The ink composition provides tack-free surface cure without requiring nitrogen or other inert gas during curing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.