Coating process for producing web form products involving application of electrostatic charges and subsequent charge neutralization

US7045173B2 · kind B2 · utility

Assignee

• tesa AG · DE

Inventors

• Ralf Hirsch · Quickborn, DE
• Sven König · Grand Rapids, US
• Dieter Muller · Badenhausen, DE
• Hermann Neuhaus-Steinmetz · Ahrensburg, DE
• Horst Wickborn · Hamburg, DE

Key dates

• Filing date: Nov 25, 2002
• Grant date: May 16, 2006
• Expiry date: Nov 25, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B05D1/265
• 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, the application taking place with application of electrostatic charges, and in which the substrate coated with the composition is electrostatically neutralized before departing the applicator, the transport means being provided with an electrically insulating coating.