Core-shell particle-based security pigment and method for production thereof
AssigneeGiesecke+Devrient Currency Technology GmbH
InventorsJohann Kecht, Axel Schlossbauer
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Abstract
The invention relates to a security pigment, comprising core-shell particles having a core based on an organic addition polymer, a shell based on an organic condensation polymer and a feature substance present in the core in finely dispersed or dissolved form, wherein the addition polymer is a three-dimensionally cross-linked duromer.
Claims20
A security pigment, comprising core-shell particles having a core based on an organic addition polymer, a shell based on an organic condensation polymer and a feature substance present in the core in finely dispersed or dissolved form, wherein the addition polymer is a three-dimensionally cross-linked duromer.
Dependencies are inferred from the claim text.