Pilkington Group Limited

Flachglas Aktiengesellschaft

Pilkington Deutschland Ag

Thomas Paul

Kevin David Sanderson

Rolf Groth

David Rimmer

Axel Nöthe

Christoph Troska

Axel Noethe

Ingo Susemihl

Michael Rissmann

Tobias Breil

The present invention relates to a transparent substrate comprising a multiple layer coating stack and the use of same in the manufacture of a double glazing unit, wherein the multiple layer coating stack comprises, n functional metal layer, m; and n plus 1 (n+1) dielectric layer, d, wherein the dielectric layers are positioned before and after each functional metal layer, and wherein n is the total number of functional metal layer in the stack counted from the substrate and is greater than or equal to 3; and wherein each dielectric layer comprises one or more layers, characterized in that the geometrical layer thickness of each functional metal layer in the coating stack Gm, is greater than the geometrical layer thickness of each functional metal layer appearing before it in the multiple layer coating stack, that is, Gmi+1>Gmwherein i is the position of the functional metal layer in the coating stack counted from the substrate, and wherein for each dielectric layer d located before and after each functional metal layer m, the optical layer thickness of each dielectric layer (opln) is greater than or equal to the optical layer thickness of the dielectric layer (opln−1) positioned before it in the coating stack with the proviso that: twice the optical layer thickness of the first dielectric layer (opl) in the coating stack, is less than the optical layer thickness of the second dielectric layer (opl) in the coating stack, that is, (2×opl)<opl; and twice the optical layer thickness of the last dielectric layer (opl) in the coating stack, is greater than the thickness of the optical layer thickness of the penultimate dielectric layer (opl), that is, (opl)<(opl)×2.

Coated glass pane

A coated glass pane comprising at least the following layers in sequence: a glass substrate; a lower anti-reflection layer; a silver-based functional layer; and at least one further anti-reflection layer; wherein the further anti-reflection layer comprises at least the following layers in sequence: at least one barrier layer; at least one absorbing layer based on tungsten nitride; and at least one dielectric layer.

Heat treatable coated glass pane

Dual coated glass sheets comprise a photocatalytically active self cleaning coating on one surface and heat reflecting coating on the second surface selected so that its single surface reflectivity is either at least three times or less than one third that of the self cleaning coating. The selection of the heat reflecting coating provides a sheet having an improved appearance. Such dual coated sheets combine self cleaning properties with solar control or low emissivity properties and are useful as building glasses.

Coated glass

A glass sheet includes a coating comprising at least one silver layer and inner and outer antireflection layers. The glass sheet is formed by a magnetron sputtering process. The inner antireflection layer is a multiple layer comprising a layer of a titanium oxide applied by medium frequency magnetron sputtering and a layer of a metal oxide between the titanium oxide layer and a silver layer.

Coatings with a silver layer

A mirror for systems for utilization of solar energy, with a substrate of low absorption flat glass and a rear highly reflective silver reflective layer is provided with a protective layer, a process for its manufacture and its use. In order to render this mirror usable for solar chemical energy utilization as well as to improve the energy yield overall, according to the invention the substrate is provided on its front with a high refractive index dielectric UV reflective layer of a thickness such that it acts as a reflection enhancing interference layer for the near UV region.

Solar mirror, process for its manufacture and its use

Process for the manufacture of a toughened and/or bent, infrared-reflecting sheet of glass made of sodalime silicate glass, in which on at least side of a transparent glass base a silver coating is applied and on its side facing away from the glass base at least one anti-reflection coating made of metal oxide is applied and a thermal toughening and/or bending process at a temperature of 580.degree. C. to 680.degree. C., preferably 600.degree. C. to 650.degree. C., is carried out, characterised by the fact that a silver coating and an outer coating made of a metal or a metal alloy are applied onto the essentially flat glass base and by the fact that after this the toughening and/or bending process is carried out, in which the outer coating is converted with an increase in volume into an essentially absorption-free metal oxide, forming at least part of the anti-reflection coating, with an index of refraction .gtoreq.1.7, sheet of glass produced according to this and its application.

Growing community of inventors

Herne, Germany

Thomas Paul