Ppg Industries, Inc.

Ppg Industries Ohio, Inc.

James J. Finley

Amy M. Roginski

Charles Richard Coleman

Terry L. Wolfe

Frank Howard Gillery

Pamela L. Martino

Thomas M. Carter

Russell C. Criss

John A. Winter

Russell C Criss

F Howard Gillery

James J Finley

Mehran Arbab

Larry A Miller

Edward J Stofka

Paul A Medwick

Charles R Coleman

Gary J Marietti

Frank H Gillery

John A Winter

Terry L Wolfe

Thomas M Carter

Amy M Roginski

Pamela L Martino

Multilayer high transmittance, low emissivity coatings on transparent substrates feature a special antireflective base film of at least two parts on the substrate-near side of a metallic, reflective film. A first of the two parts is in contact with the metallic film. This first film-part has crystalline properties for causing the metallic film to deposit in a low resistivity configuration. The second of the two film-parts supports the first part and is preferably amorphous. Coated articles of the invention also feature, in combination with the above-mentioned base film or independently thereof, a newly discovered, particularly advantageous subrange of thicker primer films for coated glass that can be thermally processed for tempering, heat strengthening, or bending.

Coated articles

Multilayer high transmittance, low emissivity coatings deposited over transparent substrates have improved mechanical durability, e.g. scratch resistance by the inclusion of at least one mechanical durability enhancing layer (hereinafter 'MDE layer'). The MDE layer includes one or more pairs of a zinc oxide sublayer having deposited thereover a sublayer of an oxide of zinc and tin. In one embodiment of the present invention, the MDE layer is composed of two sublayers which includes a first sublayer of an oxide of zinc having deposited thereover a second sublayer of an oxide of zinc and tin. In another embodiment of the invention, the MDE layer is composed of four sublayers which includes a first sublayer of an oxide of zinc, having deposited thereover a second sublayer of an oxide of zinc and tin, having deposited thereover a third sublayer of an oxide of zinc, having deposited thereover a fourth sublayer of an oxide of zinc and tin. Coated articles having the MDE layer of the invention can be thermally processed for tempering, heat strengthening, annealing or bending without haze formation and can be manipulated prior to such thermal processing with little or no surface scratching appearing after such thermal processing.

An electrically heatable windshield with a hidden bus bar configuration. A border of opaque ceramic material, preferably a lead borosilicate enamel, is bonded to an interior surface of the transparency about its periphery. Opposing electroconductive bus bars, preferably a low frit content silver-containing ceramic material, are bonded to the ceramic material so that the entire inner edge of the bus bar overlays a portion of the ceramic material and is spaced from the inner edge of the border, providing an intermediate portion of the border between the bus bars and transparency surface that is not covered by the bus bars. An electro-conductive coating is applied to the transparency to interconnect the bus bars and covers to the inner surface of the transparency, the bus bars and the intermediate portion of the ceramic material border so that electric current flowing between the bus bars must flow through the portion of the coating that covers the intermediate portion of the border.

Electrically heatable transparency

A transparent article for reflecting solar energy comprising a metal oxide film which exhibits color by absorption and interference effects and a highly reflective metal film is disclosed along with a sputtering method for its production.

Method of making architectural coating with interference colors

A discontinuity detection system for a heated transparency such as a windshield is provided wherein a break in any portion of the bus bars is detected. A voltage sensor lead extends from the farthest extremity of the longest length of bus bar.

Discontinuity detector in a heated transparency

Architectural coating with interference colors

A multiple layer high transmittance, low emissivity coated article is disclosed with improved chemical resistance as a result of a protective overcoat of titanium oxide.

Protective coating for low emissivity coated articles

An improved anode system for producing uniform gradient coatings by magnetic sputtering is disclosed, comprising a pair of anode plates asymmetrically designed and positioned along the length of the cathode.

Anode for magnetic sputtering of gradient films

Protective overcoat for low emissivity coated article

A method is disclosed for improving the stability and durability of sputtered metal films such as silver and copper by means of depositing a protective overcoat of a metal such as stainless steel on the exposed surface of the film.

Stainless steel overcoat for sputtered films

An improved anode system for producing coatings by magnetic sputtering is disclosed, comprising an anode structure of expanded metal.

Anode for magnetic sputtering

A method is disclosed for improving the adhesion of sputtered metal films such as silver and copper by means of first depositing a primer layer of a metal such as stainless steel.

Growing community of inventors

Pittsburgh, PA, United States of America

Russell C Criss