Dip coating apparatus having a single coating vessel

US5725667A · kind A · utility

Assignee

• Xerox Corporation · US

Inventors

• Mark C. Petropoulos · Ontario, US
• Geoffrey M. T. Foley · Fairport, US
• Eugene A. Swain · Webster, US
• David J. Kilmer · Ontario, US
• Mark S. Thomas · Williamson, US
• Stanley J. Pietrzykowski, Jr. · Rochester, US
• Robert S. Foltz · Rochester, US
• Peter Schmitt · Erlangen, DE
• Richard P. Millonzi · Marion, US

Key dates

• Filing date: Mar 1, 1996
• Grant date: Mar 10, 1998
• Expiry date: Mar 1, 2016

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G5/0525
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

There is disclosed a dip coating apparatus including: (a) a single coating vessel capable of containing a batch of substrates vertically positioned in the vessel, wherein there is absent vessel walls defining a separate compartment for each of the substrates; (b) a coating solution disposed in the vessel, wherein the solution is comprised of materials employed in a photosensitive member and including a solvent that gives off a solvent vapor; and (c) a solvent vapor uniformity control apparatus which minimizes any difference in solvent vapor concentration encountered by the batch of the substrates in the air adjacent the solution surface, thereby improving coating uniformity of the substrates.