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US 2025/0163286 A1Published application
Sustainable radiation curable hybrid offset inks
AssigneeSun Chemical Corporation
InventorsFreddy DELAHAYE, Annabelle PETIT, Saeid SAVARMAND, Christian JOHNKE, Jean-Hugues BLAIZEAU
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Abstract
The present invention provides radiation-curable hybrid ink and coating compositions with high bio renewable content, comprising large amounts of inert hard resin. The radiation hybrid ink and coating compositions have good lithographic properties, low roller swelling, and a low gloss-back effect when overprinted with a UV varnish. The ink and coating compositions are useful for lithographic wet printing.
Claims34
-49. (canceled)
A lithographic radiation curable hybrid ink or coating composition comprising:
- a) 10 wt % to 30 wt % one or more inert hard resins selected from the group consisting of rosin resins, rosin resin derivatives, hydrocarbon resins, modified hydrocarbon resins, iso diallyl phthalate resins, non-phthalate allyl resins, and combinations thereof,
- b) 10 to 60% non-UV raw material selected from the group consisting of vegetable oils, vegetable oil esters, alkyds resins, antioxidants, and combinations thereof;
- and
- c) 5 wt % to 45 wt % one or more multifunctional (meth)acrylate monomers and/or oligomers;
- d) 0-10% monofunctional (meth)acrylate monomers and/or oligomers;
- and wherein the ink or coating composition comprises ≥40% biorenewable content, wherein the biorenewable content is measured according to the standard method described in ASTM D6866.
3 more elements
Dependencies are inferred from the claim text.