Flexible, scratch resistant radiation curable inkjet inks
US8991991B2 · kind B2 · utility
2Cited by
1References
17Claims
0Family size
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Inventor
Key dates
| Filing date | Jun 8, 2011 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Sep 19, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/101
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A free radical radiation curable inkjet ink containing a photoinitiator and polymerizable compounds includes at least 45 wt % of a mixture of monomers consisting of: a) 10 to 35 wt % of one or more cyclic monofunctional acrylates wherein the homopolymer thereof has a Tg larger than 20° C.; b) 10 to 30 wt % of a N-vinyl lactam and/or a vinylether acrylate; c) 10 to 30 wt % of an ethoxylated and/or propoxylated polyacrylate having a molecular weight of at least 450; wherein all wt % are based on the total weight of the inkjet ink; and wherein the Tg is determined by the DSC method in ISO 11357-2:1999.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.