Pilkington Group Limited

Pilkington Plc

Libbey-owens-ford Co.

University College London

Pilkington North America, Inc., As Libbey-owens-ford Co

Simon James Hurst

Richard J McCurdy

Kevin David Sanderson

Karikath Sukumar Varma

John Andrew Ridealgh

Johannes Andreas Maria Ammerlaan

Peter Michael Harris

David Rimmer

Kieran James Cheetham

Deborah Raisbeck

Simon Paul Oliver

Anna Louise Colley

Claire J Carmalt

Joe A Manzi

Mark John Glynn

Ivan P Parkin

Timothy Ian McKittrick

Simon John Slade

Nicola Ruth Thompson

Richard Joseph Mccurdy

Methods are disclosed for planarisation of a coated glass substrate by deposition of a silazane based layer thereon. Coated substrates according to the invention exhibit improved properties in terms of reduced roughness, lower haze and higher visible light transmission and the coated surface may be exposed to the external environment, for example as surface 1 or surface 4 of a double glazing unit. The resulting smooth surface is less susceptible to marking and scratch damage, and offers enhanced surface energy (improved hydrophobicity).

Planarisation of a coating

A splash screen, and a process for making a splash screen, comprising a glass sheet, the glass sheet comprising, a substrate of soda lime silica glass having a coating deposited on at least at least a first surface, the coating comprising a corrosion-protection layer deposited directly on the first surface of the substrate, the corrosion-protection layer having a thickness in the range 24 nm to 125 nm and comprising pyrolytically deposited silica with intentional doping of 7 atom % or lower. The splash screen provides reduced moisture induced corrosion of the glass surface.

Splash screen

A process for depositing an inorganic material on a substrate, the process comprising, providing a substrate having a surface, providing a precursor mixture comprising a metal sulfonate, and delivering the precursor mixture to the surface of the substrate, wherein the surface of the substrate is at a substrate temperature of above 450&#xb0; C. and is sufficient to effect decomposition of the metal sulfonate. The inorganic material may include a metal or a metal oxide. The preferred metal sulfonate is metal triflate.

Deposition process

A process for the production of durable photocatalytically active self-cleaning coating on glass by contacting a hot glass surface with a fluid mixture of titanium chloride, a source of oxygen and a tin precursor. The coating preferably comprises less than 10 atom % tin in the bulk of the coating and preferably there is a greater atomic percent tin in the surface of the coating than there is in the bulk of the coating. Preferably, the coating is durable to abrasion and humidity cycling.

Process for coating glass

A coated substrate, especially a glass substrate, such coated substrate having high photocatalytic activity and low visible light reflection as well as being highly abrasion resistant. Preferably, the coating is a titanium oxide coating, the photolytic activity is greater than 5&#xd7;10cmmin, and coating side visible light reflection is 35% or lower.

Coated substrates

A process for the production of a photocatalytically active self-cleaning coated substrate, especially a glass substrate, which comprises depositing a titanium oxide coating on the surface of the substrate by contacting it with a fluid mixture containing a source of titanium and a source of oxygen, the substrate being at a temperature of at least 600&#xb0; C. The coated surface has good durability, a high photocatalytic activity and a low visible light reflection. Most preferably the deposition temperature is in the range 645&#xb0; C. to 7200&#xb0; C. which provides especially good durability. The fluid mixture preferably contains titanium chloride and an ester, especially ethyl acetate. Also disclosed is a self cleaning coated substrate, especially a glass substrate, having high photocatalytic activity and low visible light reflection and a durable self-cleaning coated glass.

Coatings on substrates

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Runcorn, United Kingdom

Simon James Hurst