Transparent glazing and use thereof in a chilling chamber door comprising in particular a glazing under vacuum

Abstract

A transparent glazing unit having at least one viewing area, combined with an antifrosting adsorbent layer deposited on at least one surface of the said area, and its use in a door of a refrigerated enclosure and more particularly a glazed door, the glazed area of which essentially consists of a vacuum glazing unit.

1 - 14 . (canceled).  
   
   
       15 . A transparent glazing comprising at least one viewing area, wherein the viewing area is combined with an antifrosting adsorbent layer deposited on at least one surface of said area.  
   
   
       16 . The glazing according to  claim 15 , wherein the layer is deposited on the surface of the glazing.  
   
   
       17 . The glazing according to  claim 15 , wherein the layer is deposited on a plastic film and said plastic film is fastened to the glazing.  
   
   
       18 . The glazing according to  claim 15 , wherein the layer comprises at least one hydrophilic polymer.  
   
   
       19 . The glazing according to  claim 18 , wherein the hydrophilic polymer is crosslinked.  
   
   
       20 . The glazing according to  claim 18 , wherein the hydrophilic polymer is a polymer or copolymer of vinylpyrrolidone.  
   
   
       21 . The glazing according to  claim 18 , wherein the layer further comprises an organic or inorganic absorbent material.  
   
   
       22 . The glazing according to  claim 15 , wherein the layer in the wet state has a porosity of between 0.1 and 1000 cm 3 /g.  
   
   
       23 . The glazing according to  claim 15 , wherein the layer in the wet state has pores whose diameter is between 0.05 and 50 microns.  
   
   
       24 . The glazing according to  claim 15 , wherein the antifrosting adsorbent layer has a thickness of less than 100 microns.  
   
   
       25 . The glazing according to  claim 15 , wherein the glazing is an insulating glazing unit comprising at least two glass sheets.  
   
   
       26 . The glazing according to  claim 25 , wherein the glazing is a vacuum insulating glazing unit.  
   
   
       27 . The glazing according to  claim 21 , comprising an inorganic absorbent material, wherein the inorganic absorbent material is porous.  
   
   
       28 . The glazing according to  claim 15 , wherein the layer in the wet state has pores whose diameter is between 0.1 and 20 microns.  
   
   
       29 . The glazing according to  claim 15 , wherein the layer in the wet state has pores whose diameter is between 1 and 15 microns.  
   
   
       30 . A refrigerated door enclosure comprising the glazing according to  claim 15 .  
   
   
       31 . The glazing according to  claim 18 , wherein the antifrosting adsorbent layer is deposited on the surface of the viewing area which is in contact with a refrigerated environment.