Polymer coatings

US6939576B2 · kind B2 · utility

Assignee

• nGimat Co. · US

Inventors

• Girish Nilkanth Deshpande · Bolingbrook, US
• Andrew Tye Hunt · Atlanta, US
• Subramaniam Shanmugham · Duluth, US
• Eric J. Yurtkuran · Atlanta, US
• Todd Polley · Suwanee, US
• Miodrag Oljara · Augusta, US
• Tzyy Jiuan Hwang · Alpharetta, US
• Aimee Poda · Atlanta, US
• George A. Neuman · Holland, US

Key dates

• Filing date: Jun 27, 2001
• Grant date: Sep 6, 2005
• Expiry date: Jun 29, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31522
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Coatings, particularly thin films, of polymeric material are produced in accordance with the invention by applying a finely divided aerosol of polymer solution to a substrate and substantially simultaneously applying an energy source to the applied solution to apply the solution. In cases where the polymer is cross-linking, the energy source assists in cross-linking of the polymer. The preferred energy source is a flame that may optionally or desirably deposit material along with the polymer spray. One particular aspect of the invention is directed to production of polyimide films. In accordance with another aspect of the invention, the co-deposition process is used to provide thin polysiloxane coatings on glass and other substrates.