Spacer for insulating glazing units

Abstract

A spacer for a multiple-pane insulating glazing unit, at least having a composite composed of a glass-fibre-reinforced, polymeric main body having two pane contact surfaces, which extend parallel to one another, an adhesive surface, a glazing interior surface, and an insulation film on the adhesive surface or the adhesive surface and the connecting surfaces, where the insulation film has at least one polymeric film having a thickness of 10 μm to 100 μm, at least one polymeric layer having a thickness of 5 μm to 80 μm and also a metal layer having a thickness of 10 nm to 1500 nm or a ceramic layer having a thickness of 10 nm to 1500 nm.

1 . A spacer for a multipane insulating glazing unit comprising at least a composite composed of:
 a glass-fiber-reinforced, polymeric main body comprising:
 two pane contact surfaces running parallel to each other, 
 an adhesive surface, and 
 a glazing interior surface, 
 wherein the pane contact surfaces and the adhesive surface are connected to each other directly or via connecting surfaces, and 
   an insulation film on the adhesive surface or on the adhesive surface and the connecting surfaces,   wherein the insulation film comprises:
 at least one polymeric film having a thickness from 10 μm to 100 μm, 
 at least one polymeric layer having a thickness from 5 μm to 80 μm, and 
 a metal layer having a thickness from 10 nm to 1500 nm, or a ceramic layer having a thickness from 10 nm to 1500 nm. 
   
     
     
         2 . The spacer according to  claim 1 , wherein the polymeric film and the polymeric layer are made from the same material. 
     
     
         3 . The spacer according to  claim 1 , wherein the insulation film contains at least two metal layers and/or ceramic layers, which are arranged alternatingly with the at least one polymeric layer. 
     
     
         4 . The spacer according to  claim 1 , wherein the composite has a PSI (pounds per square inch) value less than 0.05 W/mK, preferably less than 0.035 W/mK. 
     
     
         5 . The spacer according to  claim 1 , wherein the polymeric film and/or polymeric layer include i) polyethylene terephthalate, ii) ethylene vinyl alcohol, iii) polyvinylidene chloride, iv) polyamides, v) polyethylene, vi) polypropylene, vii) silicones, viii) acrylonitriles, ix) polymethyl acrylate, copolymers of any i)-ix) or mixtures of any i)-ix). 
     
     
         6 . The spacer according to  claim 1 , wherein the metal layer contains i) iron, ii) aluminum, iii) silver, iv) copper, v) gold, vi) chromium, alloys of any metals i)-vi) or mixtures of any metals i)-vi). 
     
     
         7 . The spacer according to  claim 1 , wherein the metal layer has a thickness from 10 nm to 400 nm, preferably 10 nm to 300 nm. 
     
     
         8 . The spacer according to  claim 1 , wherein the ceramic layer preferably contains silicon oxides, silicon nitrides or mixtures of silicon oxides and silicon nitrides. 
     
     
         9 . The spacer according to  claim 1 , wherein the polymeric layer has a thickness from 10 μm to 80 μm. 
     
     
         10 . The spacer according to  claim 1 , wherein the polymeric film has 1 to 4 metal layers or ceramic layers. 
     
     
         11 . The spacer according to  claim 1 , wherein the polymeric film has 1 to 4 polymeric layers. 
     
     
         12 . The spacer according to  claim 1 , wherein the main body has, along the adhesive surface and the glazing interior surface, a length or width from 5.5 mm to 8 mm. 
     
     
         13 . The spacer according to  claim 1 , wherein the main body has, along the pane contact surfaces, a length from 5 mm to 30 mm. 
     
     
         14 . The spacer according to  claim 1 , wherein the main body contains a desiccant, preferably i) silica gels, ii) molecular sieves, iii) CaCl 2 , iv) Na 2 SO 4 , v) activated charcoal, vi) silicates, vii) bentonites, viii) zeolites, or mixtures of any i)-viii). 
     
     
         15 . The spacer according to  claim 1 , wherein the main body contains i) polyethylene (PE), ii) polycarbonates (PC), iii) polypropylene (PP), iv) polystyrene, v) polybutadiene, vi) polynitriles, vii) polyesters, viii) polyurethanes, ix) polymethyl methacrylates, x) polyacrylates, xi) polyamides, xii) polyethylene terephthalate (PET), xiii) polybutylene terephthalate (PBT), xiv) acrylonitrile styrene acrylester (ASA), xv) acrylonitrile butadiene styrene—polycarbonate (ABS/PC), xvi) styrene acrylonitrile (SAN), xvii) PET/PC, xviii) PBT/PC, copolymers of any i)-xviii) or mixtures of any i)-xviii). 
     
     
         16 . An insulating glazing unit comprising:
 at least two panes,   the spacer according to  claim 1  surrounding the panes, and   an outer insulating layer.   
     
     
         17 . A method comprising:
 using the spacer according to  claim 1  in multipane glazing units, preferably in insulating glazing units.   
     
     
         18 . The spacer according to  claim 7 , wherein the thickness is from 10 nm to 200 nm. 
     
     
         19 . The space according to  claim 15 , wherein the polybutylene terephthalate (PBT) is acrylonitrile butadiene styrene (ABS).