Radiation curable compositions
AssigneeAgfa Graphics NV
InventorsJohan Loccufier, Luc Vanmaele, Jaymes Van Luppen, Roland Claes
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Abstract
Radiation curable compositions with a polymeric co-initiator are disclosed comprising a dendritic polymer core with at least one co-initiating functional group as an end group. The dendritic polymeric core is preferably a hyperbranched polymer. Industrial applications include varnishes, lacquers and printing inks. The polymeric co-initiator is especially useful in radiation curable inkjet ink.
Claims14
A radiation curable composition comprising a polymeric co-initiator comprising a dendritic polymer core with at least one co-initiating functional group as an end group, wherein said dendritic polymer core is a hyperbranched polymer core, and wherein said at least one co-initiating functional group is a co-initiating functional group selected from the group consisting of an aliphatic amine, an aromatic amine and a thiol.
The process for polymerization of monomers, oligomers and/or prepolymers comprising the steps of:
- a) providing a polymeric co-initiator, and
- b) mixing the said polymeric co-initiator with monomers, oligomers and/or prepolymers, wherein said polymeric co-initiator comprises a dendritic polymer core with at least one co-initiating functional group as an end group, wherein said dendritic polymer core is a hyperbranched polymer core, and wherein said at least one co-initiating functional group is a co-initiating functional group selected from the group consisting of an aliphatic amine, an aromatic amine and a thiol.
A process for providing an imaged article comprising the steps of:
- a) providing a radiation curable inkjet ink, and
- b) jetting said radiation curable inkjet ink on an ink jet recording element selected from the group consisting of paper, coated paper, polyolefin coated paper, cardboard, wood, composite boards, plastic, coated plastic, canvas, textile, metal, glasses, plant fibre products, leather, magnetic materials and ceramics,
- wherein said imaged article comprises a polymeric co-initiator having a dendritic polymer core with at least one co-initiating functional group as an end group, and wherein said dendritic polymer core is a hyperbranched polymer core, and wherein said at least one co-initiating functional group is a co-initiating functional group selected from the group consisting of an aliphatic amine, an aromatic amine and a thiol.
Dependencies are inferred from the claim text.