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US 12,116,490 B2Granted
Low migration EB curable inks with bio-renewable content
AssigneeSun Chemical Corporation
InventorsJoerg Adams, Kai-Uwe Gaudl, Matthias Hellblau
Life of this patent
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Abstract
An electron-beam curable ink or coating for sensitive applications such as food packaging and pharmaceutical packaging. The ink or coating of the invention comprises a high bio-renewable content. A printed article or laminate comprising a cured layer derived from the ink or coating of the invention.
Claims35
An electron-beam curable ink or coating composition, comprising;
- a) <5 wt % of the sum of the monofunctional, difunctional, and tri-functional monomers having a molecular weight <500 Daltons;
- b) 1 to 15 wt % of the sum of the tri-, tetra-, penta-, hexa- and higher functional monomers;
- c) ≥20 wt % of an acrylated, epoxidized vegetable oil;
- d) 5 to 30 wt % of an acrylated polyurethane;
- and
- e) 0.3 to 3 wt % of a non-acrylated resin;
- wherein the non-acrylated resin comprises bio-renewable content selected from the group consisting of rosin derivatives;
- resins based on cellulose derivatives;
- acrylate-soluble molecular weight degraded polylactic acid;
- and combinations thereof.
7 more elements
An electron-beam curable ink or coating composition, comprising;
- a) 1 to 15 wt % of the sum of the tri-, tetra-, penta-, hexa- and higher functional monomers;
- b) ≥20 wt % of an acrylated, epoxidized vegetable oil;
- c) 5 to 30 wt % of an acrylated polyurethane;
- and
- d) 0.3 to 3 wt % of a non-acrylated resin;
- wherein the non-acrylated resin comprises bio-renewable content selected from the group consisting of rosin derivatives;
- resins based on cellulose derivatives;
- acrylate-soluble molecular weight degraded polylactic acid;
- and combinations thereof.
6 more elements
Dependencies are inferred from the claim text.