Energy curable, heat activated flexographic adhesives for die-less foiling
US12054620B2 · kind B2 · utility
0Cited by
13References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2021 |
| Grant date | Aug 6, 2024 |
| Priority date | — |
| Expiry date | Jun 17, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Adhesive compositions disclosed herein can be applied to substrates using flexo-printing (via, e.g., photopolymer plate); cured to a hardened, tack-free state; and readily be rendered tacky on application of heat and pressure to accurately transfer foil to the substrates. An example adhesive composition includes a monomer component, an oligomer/resin component including one or more oligomers and one or more inert thermoplastic resins that are soluble in the monomers, and, where required, one or more free radical polymerization initiators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.