Films and coatings containing borosilicate flake glass

Abstract

A coating material containing borosilicate flake glass is disclosed, together with methods for the preparation and use thereof.

We claim: 
     
         1 . A thermal barrier film, said film comprising:
 a flexible sheet, without having a cross-linkable silicone component, that is configured to be applied to at least a portion of a substrate, the flexible sheet formed of a coating material having a quantity of flaked borosilicate glass,   wherein upon exposure of the substrate having the flexible sheet disposed thereon to a source of thermal radiation, the substrate has a temperature that is less than a temperature of a comparable substrate that does not have the flexible sheet disposed thereon and similarly exposed to the source of thermal radiation, and   wherein the substrate is a textile material, a woven material, a non-woven material, a membrane material, or combinations thereof   
     
     
         2 . The thermal barrier film of  claim 1 , wherein at least a portion of the flaked borosilicate glass has an aspect ratio of about 100:1 or greater. 
     
     
         3 . The thermal barrier film of  claim 1 , wherein the flexible sheet is from about 10 μm to about 5,000 μm thick. 
     
     
         4 . The thermal barrier film of  claim 1 , wherein the flaked borosilicate glass has an average particle size in at least one dimension of from about 5 μm to about 100 μm. 
     
     
         5 . The thermal barrier film of  claim 1 , wherein the coating material comprises from about 10 wt. % to about 80 wt. % flaked borosilicate glass. 
     
     
         6 . The thermal barrier film of  claim 1 , wherein the coating material comprises from about 10 wt. % to about 25 wt. % flaked borosilicate glass. 
     
     
         7 . The thermal barrier film of  claim 1 , wherein the source of thermal radiation comprises solar radiation, infrared radiation, convective heating, or combinations thereof. 
     
     
         8 . The thermal barrier film of  claim 1 , wherein upon exposure to the source of thermal radiation the temperature of the substrate having the flexible sheet disposed thereon is less than about 5° F. or greater than the temperature of the comparable substrate that does not have the flexible sheet disposed thereon and similarly exposed to the source of thermal radiation. 
     
     
         9 . A coated substrate comprising:
 a substrate that comprises a textile material, a woven material, a non-woven material, a membrane material, or combinations thereof; and   a coating material, without having a cross-linkable component, disposed on and at least partially impregnated in at least a portion of the substrate, wherein the coating material is a paint that comprises flaked borosilicate glass,   wherein upon exposure of the coated substrate to a source of thermal radiation, the coated substrate has a temperature that is less than a temperature of a comparable substrate that is not coated with the coating material and similarly exposed to the source of thermal radiation.   
     
     
         10 . The coated substrate of  claim 9 , wherein at least a portion of the flaked borosilicate glass has an aspect ratio of about 100:1 or greater. 
     
     
         11 . The coated substrate of  claim 9 , wherein the coating material, once disposed on the substrate, is from about 10 μm to about 5,000 μm thick. 
     
     
         12 . The coated substrate of  claim 9 , wherein the flaked borosilicate glass has an average particle size in at least one dimension of from about 5 μm to about 100 μm. 
     
     
         13 . The coated substrate of  claim 9 , wherein the coating material comprises from about 10 wt. % to about 80 wt. % flaked borosilicate glass. 
     
     
         14 . The coated substrate of  claim 9 , wherein the coating material comprises from about 10 wt. % to about 25 wt. % flaked borosilicate glass. 
     
     
         15 . The coated substrate of  claim 9 , wherein the source of thermal radiation comprises solar radiation, infrared radiation, convective heating, or combinations thereof. 
     
     
         16 . The coated substrate of  claim 9 , wherein the coating material has a density in the range of about 1.16 g/mL to about 1.21 g/mL. 
     
     
         17 . The coated substrate of  claim 9 , wherein upon exposure to the source of thermal radiation the temperature of the coated substrate is less than about 5° F. or greater than the temperature of the comparable substrate that is not coated with the coating material and similarly exposed to the source of thermal radiation.