Device and method for applying a flowable medium onto a moving surface

US6554900B1 · kind B1 · utility

Assignee

• Pagendarm Technologie GmbH · DE

Inventors

• Oral Aydin · Mannheim, DE
• Andree Dragon · Speyer, DE
• Frank Reinhard · Mannheim, DE

Key dates

• Filing date: Apr 2, 2001
• Grant date: Apr 29, 2003
• Expiry date: Apr 2, 2021

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B05C3/18
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

An apparatus for the application of a flowable medium (2, 2′) from a stock chamber (7, 8) to a surface (6) being moved along the apparatus, and to the use of an apparatus of this type. The stock chamber (7, 8) partly covers the surface (6), with formation of a sealing gap (14) and an exit gap (18). In order to prevent the formation of air bubbles in the medium (2, 2′), it is proposed to divide the stock chamber (7, 8) into a pre-chamber (7) and a main chamber (8). A dividing element (10) which, together with the surface (6), limits a dividing gap (15), is arranged between the chambers. Various shapes of the dividing element are proposed. The apparatus is particularly suitable for the application of a polymer dispersion to the surface (6). A process for operating an apparatus of this type is also described.