Ngimat Co.

Microcoating Technologies, Inc.

Subramaniam Shanmugham

Andrew Tye Hunt

Girish N Deshpande

Tzyy-Jiuan Jan Hwang

Aimee Poda

George G Neuman

Shara S Shoup

Tzyy Jiuan Hwang

Yongdong Jiang

Todd A Polley

Miodrag Oljaca

Michelle Hendrick

Henry A Luten, Iii

Trifon Tomov

William D Danielson, Jr

Eric J Yurtkuran

Miodrag Oljara

Erika Moore

William J Dalzell, Jr

Nii Sowa Laye

Jan Tzyy-Jiuan Hwang

Flame produced vapors for combustion chemical vapor deposition are redirected from the direction of the flame by differential atmospheric pressure, such as positive pressure provided by a blower or negative pressure provided by a vacuum. This allows, for example, lower surface temperatures of substrates being coated with flame-produced vapors and coating of interior surfaces.

Chemical vapor deposition methods for making powders and coatings, and coatings made using these methods

A coherent material is formed on a substrate () by providing a precursor suspension () in which particulates are suspended in a carrier fluid, and directing the precursor suspension () at the substrate () from a first source (). Generally contemporaneously with application of the deposited precursor suspension () to the surface, hot gases, e.g. hot gases produced by a flame (), are directed at the substrate () from a remote second source () to fuse the particulates into the coherent material.

Method of depositing materials

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.

Polymer coatings

An improved chemical vapor deposition apparatus and procedure is disclosed. The technique provides improved shielding of the reaction and deposition zones involved in providing CVD coatings, whereby coatings can be produced, at atmospheric pressure, of materials which are sensitive to components in the atmosphere on substrates which are sensitive to high temperatures and which are too large, or inconvenient, to process in vacuum or similar chambers. The improved technique can be used with various energy sources and is particularly compatible with Combustion Chemical Vapor Deposition (CCVD) techniques.

Apparatus and process for controlled atmosphere chemical vapor deposition

Growing community of inventors

Duluth, GA, United States of America

Subramaniam Shanmugham