Process for producing matt coatings on sheetlike substrates

US11969753B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Axel Becker · Altrip, DE
• Sebastian Berger · Olavarría, AR
• Stefanie Stein · Ludwigshafen, DE

Key dates

• Filing date: Aug 15, 2018
• Grant date: Apr 30, 2024
• Expiry date: Aug 28, 2041

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B05D5/06
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The present disclosure relates to a process for producing matt coatings on sheetlike substrates. The method includes providing an uncured lacquer layer of a UV radiation-curable liquid lacquer formulation F on a surface of the substrate to be coated. The method also includes irradiating the lacquer layer with UV radiation substantially in the wavelength range of 250 to 420 nm with a radiation dose which results in partial curing of the lacquer layer. The method further includes irradiating the partially cured lacquer layer with UV radiation in the wavelength range of 150 to <250 nm under inert gas. The method further includes irradiating the partially cured lacquer layer with UV radiation substantially in the wavelength range of 250 to 420 nm or with electron radiation with a radiation dose which results in end-curing of the lacquer layer.