Coating process for producing products in web form having at least two layers by application of electrostatic charges followed by neutralization of same

US7090898B2 · kind B2 · utility

Assignee

• tesa AG · DE

Inventors

• Hermann Neuhaus-Steinmetz · Ahrensburg, DE
• Maren Klose · Seevetal, DE
• Lars Guldbrandsen · Hamburg, DE

Key dates

• Filing date: Aug 6, 2002
• Grant date: Aug 15, 2006
• Expiry date: Dec 10, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09J2433/00
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A process for producing products in web form comprising at least two layers, in which a composition emerging from an applicator is applied as a layer to a substrate in web form which is guided on a transport means, said application taking place with application of electrostatic charges, and the substrate coated with the composition is electrostatically neutralized before departing the applicator.