초록 ▼

The invention concerns an insulating glazing wherein the gap between the substrates is filled with at least one rare gas such as argon, krypton or xenon, the inter-layer sheet (50) has a thermal conductivity less than 1 W/m.K, preferably less than 0.3 W/m.K, a low-emissive coating being deposited on

The invention concerns an insulating glazing wherein the gap between the substrates is filled with at least one rare gas such as argon, krypton or xenon, the inter-layer sheet (50) has a thermal conductivity less than 1 W/m.K, preferably less than 0.3 W/m.K, a low-emissive coating being deposited on at least part of one of the substrates, an anti-frost coating being deposited on part of at least the outer surface of one substrate, the glazing being free of heating element, the glazing having a thermal conductivity coefficient U less than 1.2 W/m.K with a gas filling of at least 85%, and having a light transmission of at least 67% and a light reflection less than 18%.

대표청구항 ▼

The invention claimed is: 1. An insulating glazing unit constructed and arranged for use in a leaf of a refrigerated enclosure, the glazing unit comprising:at least first and second glass substrates, the first glass substrate having a first external face and a second face, the second glass substrate

The invention claimed is: 1. An insulating glazing unit constructed and arranged for use in a leaf of a refrigerated enclosure, the glazing unit comprising:at least first and second glass substrates, the first glass substrate having a first external face and a second face, the second glass substrate having a third face and fourth external face, the glazing unit is constructed such that when installed in a leaf and the leaf is in a closed position the first external face is exposed to an external environment and the fourth external face is in contact with an environment inside a refrigerated enclosure;at least one spacer of low thermal conductivity retaining the first and second glass substrates spaced apart, the spacer having a thermal conductivity of less than 1 W/m.K;a low-E (low-emissivity) coating at least partly on a face of at least one of the glass substrates having an emissivity not exceeding 0.3; andan anti-frost coating on at least part of the fourth external face, which avoids formation of fogging or frosting on the fourth external face when the glazing unit is used on a refrigerated enclosure and opened to take merchandise out of the enclosure or for restocking the enclosure so that the merchandise can be easily seen through the glazing unit, wherein,an airspace defined between the first and second substrates is filled with at least one rare gas;the glazing unit contains no heating element;the glazing unit has a thermal conductivity coefficient U of less than 1.2 W/m2.K with a gas filling of at least 85%; andthe glazing unit has a light transmission of at least 75% and a light reflection of less than 18%.