HEAT RAY SHIELDING GLASS

• Main Authors: OTSUKI TOYO, TOMIOKA TAKAO
• Format: Patent
• Language: English
• Published: 14.12.1999
• Edition: 6
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; GLASS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; JOINING GLASS TO GLASS OR OTHER MATERIALS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MINERAL OR SLAG WOOL; PERFORMING OPERATIONS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING

PROBLEM TO BE SOLVED: To obtain a heat ray shielding glass having >=70% visible radiation transmittance and <=48% solar radiation transmittance and suitable predominantly for a warm region. SOLUTION: In this heat ray shielding glass obtd. by disposing a protective metallic layer on a silver layer, titanium dioxide layers are separately disposed just under the silver layer and on the protective metallic layer or a lower protective oxide layer based on zinc oxide or tin oxide is further formed between the lower titanium dioxide layer and the glass substrate and an upper protective oxide layer based on zinc oxide or tin oxide is further formed on the upper titanium dioxide layer.