| 摘要 |
1,153,761. Coated glass. NIPPON SHEET GLASS CO. Ltd. 19 Jan., 1967 [24 Jan., 1966], No. 2965/67. Heading B2K. Glass has a coloured zone adjacent to an uncoloured zone, the boundary between the two being blurred, the coloured zone owing its colour to a thin fixed coating of a colour producing metal oxide, and there being extending along the boundary and partly into the zones on each side thereof, a further zone having a thin fixed coating of tin oxide or titanium oxide. The product is produced by applying to a localised zone of an uncoloured glass surface a thin coating of a solution of a metal compound which can be oxidised to a colour producing metal oxide, and applying to a furtherzone of the surface, extending along the boundary of the localised zone and partly into the zones on each side thereof, a thin coating cf a solution of a compound which can be oxidised to a tin oxide or titanium oxide, and by the action of heat, causing the oxidation of the compounds. The heat required to oxidize the compounds may be provided by heating the glass to a sufficiently high temperature, below its melting temperature, before or after applying the compounds. Examples of compounds for producing the zones are given. Solutions of the compounds may be applied by for example spraying or brushing. Coating of glass sheets e.g. automobile window panes, and vases is described. |
