Use of a UV-curable clear lacquer composition for coating or printing a substrate and / or substrate surface

The UV-curable clearcoat composition addresses the limitations of conventional clearcoats by using specific monomers and low photoinitiator amounts, ensuring rapid curing and improved adhesion to diverse substrates with reduced health and cost impacts.

DE102018220512B4Active Publication Date: 2026-06-18MARABU GMBH & CO KG
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
MARABU GMBH & CO KG
Filing Date
2018-11-28
Publication Date
2026-06-18

AI Technical Summary

Technical Problem

Conventional clearcoat compositions fail to meet the requirements of excellent mechanical resistance, rapid curing, and broad adhesion spectrum for digital printing on various substrates, while containing high amounts of harmful photoinitiators, increasing costs and health risks.

Method used

A UV-curable clearcoat composition comprising monofunctional acrylate and methacrylate monomers with specific residues, N-vinyl monomers, and low amounts of photoinitiators, providing excellent reactivity, rapid curing, and improved adhesion to diverse substrates, with reduced health and cost implications.

Benefits of technology

The composition achieves rapid curing, enhanced adhesion, and mechanical robustness, while minimizing photoinitiator use, thus reducing health risks and production costs.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

Use of a UV-curable clearcoat composition for coating or printing, in particular digital printing, of a substrate and / or a substrate surface as a vacuum coating, wherein the UV-curable clearcoat composition - at least one monofunctional acrylate monomer / methacrylate monomer with a substituted or unsubstituted monocycloaliphatic hydrocarbon residue, - at least one monofunctional acrylate monomer / methacrylate monomer with a substituted or unsubstituted heterocyclic, non-aromatic organic residue, - at least one monofunctional acrylate monomer / methacrylate monomer with a substituted or unsubstituted bicyclic, non-aromatic hydrocarbon residue and - comprising at least one photoinitiator, wherein the UV-curable clearcoat composition further comprises at least one N-vinyl monomer, wherein the at least one N-vinyl monomer comprises a proportion of 20 wt.% to 40 wt.%, based on the total weight of the UV-curable clearcoat composition.
Need to check novelty before this filing date? Find Prior Art