Sigma Laboratories of Arizona, Inc.

American Cyanamid Company

Astenjohnson, Inc.

Asten, Inc.

Richard E Ellwanger

Angelo Yializis

Michael G Mikhael

Gale Shipley

C Barry Johnson

Wolfgang Decker

Timothy D O'Brien

Eugene L Smith, Jr

Andrew C Poulos

Ralph Joseph Chamberlain

A plasma is produced in a treatment space () by diffusing a plasma gas at atmospheric pressure and subjecting it to an electric field created by two metallic electrodes () separated by a dielectric material (), and a precursor material is introduced into the treatment space to coat a substrate film or web () by vapor deposition or atomized spraying at atmospheric pressure. The deposited precursor exposed to an electromagnetic field (AC, DC, or plasma) and then it is cured by electron-beam, infrared-light, visible-light, or ultraviolet-light radiation, as most appropriate for the particular material being deposited. Additional plasma post-treatment may be used to enhance the properties of the resulting coated products.

Electromagnetic treatment in atmospheric-plasma coating process

A plasma is produced in a treatment space () by diffusing a plasma gas at atmospheric pressure and subjecting it to an electric field created by two metallic electrodes () separated by a dielectric material (), a precursor material is introduced into the treatment space to coat a substrate film or web () by vapor deposition or atomized spraying at atmospheric pressure. The deposited precursor is cured by electron-beam, infrared-light, visible-light, or ultraviolet-light radiation, as most appropriate for the particular material being deposited. Additional plasma post-treatment may be used to enhance the properties of the resulting coated products.

Atmospheric glow discharge with concurrent coating deposition

A plasma is produced in a treatment space by diffusing a plasma gas at atmospheric pressure and subjecting it to an electric field created by two metallic electrodes separated by a dielectric material, a precursor material is mixed with the plasma, and a substrate film or web is coated by vapor deposition of the vaporized substance at atmospheric pressure in the plasma field. The deposited precursor is cured by electron-beam, infrared-light, visible-light, or ultraviolet-light radiation, as most appropriate for the particular material being-deposited. Plasma pre-treatment and post-treatment steps are used to enhance the properties of the resulting coated products. Similar results are obtained by atomizing and spraying the liquid precursor in the plasma field.

A plasma is produced in a treatment space by diffusing a plasma gas at atmospheric pressure and subjecting it to an electric field created by two metallic electrodes separated by a dielectric material, a vapor precursor is mixed with the plasma, and a substrate material is coated by vapor deposition of the vaporized substance at atmospheric pressure in the plasma field. The use of vaporized silicon-based materials, fluorine-based materials, chlorine-based materials, and organo-metallic complex materials enables the manufacture of coated substrates with improved properties with regard to moisture-barrier, oxygen-barrier, hardness, scratch- and abrasion-resistance, chemical-resistance, low-friction, hydrophobic and/or oleophobic, hydrophilic, biocide and/or antibacterial, and electrostatic-dissipative/conductive characteristics.

Barrier coatings produced by atmospheric glow discharge

Methods and apparatus for plasma modifying a substrate are disclosed along with associated techniques for applying coatings to the substrate. Particular utility has been found using a hollow cathode to generate the plasma along with magnetic focusing means to focus the plasma at the surface of a substrate.

Structures and components thereof having a desired surface characteristic together with methods and apparatuses for producing the same

Structures and components thereof having a desired surface

Metal-polymer nanolaminate products are fabricated from a bulk nanolaminate material composed of thousands of alternating metal and polymer layers. The nanolaminate material is produced by a prior art ultra high speed vacuum nanotechnology process that forms metal layers separated by radiation cross linked multifunctional acrylate polymer materials. The polymer to metal ratio in the nanolaminate composite can be successfully controlled. The polymer chemistry in the nanolaminate can be varied to incorporate a broad range of functional groups. The nanolaminate products are safe to handle and are environmentally and chemically stable at least up to 250.degree. C. A change in polymer chemistry can be used to lower or enhance the thermal degradation point of the polymer material.

Metal nanolaminate composite

Froth flotation of phosphate ore in the presence of residual organic polymeric flocculants is improved in recovery when a collector comprising a fatty acid derived from vegetable or mineral oils and a surface active agent is employed.

Process of phosphate ore beneficiation in the presence of residual

Phosphate slimes are effectively settled by the sequential addition of effective amounts of a low molecular weight acrylamide: acrylic acid copolymer of high anionicity and a high molecular weight acrylamide: acrylic acid copolymer of low anionicity.

Anionic polymeric flocculant combinations for settling phosphate slimes

Anionic water-in-oil emulsions of polyacrylamide are readily inverted in hard water for dissolution of the polymer therein by effecting inversion at a dilution such that insufficient hardness is present to cause emulsion breaking.

Growing community of inventors

Tucson, AZ, United States of America

Richard E Ellwanger