Stain repellent and voc eliminating coatings and use thereof

Abstract

A coating dispersion or building article can include titanium dioxide, and a dihydrazide. The coating dispersion or building article can further include calcium carbonate, calcined aluminum silicate, acrylic polymers, and a fluoroalkyl polymer.

What is claimed is: 
     
         1 . A coating dispersion, the coating dispersion comprising:
 water;   titanium dioxide;   calcium carbonate;   calcined aluminum silicate;   acrylic polymers;   a dihydrazide; and   a fluoroalkyl polymer present at up to 5 wt % of the coating dispersion.   
     
     
         2 . The coating dispersion according to  claim 1 , wherein the amount of titanium dioxide is at least 5 wt % of the coating dispersion. 
     
     
         3 . The coating dispersion according to  claim 2 , wherein the amount of titanium dioxide is not greater than 15 wt % of the coating dispersion 
     
     
         4 . The coating dispersion according to  claim 1 , wherein the amount of calcium carbonate is at least 18 wt % of the coating dispersion. 
     
     
         5 . The coating dispersion according to  claim 4 , wherein the amount of calcium carbonate is not greater than 35 wt % of the coating dispersion 
     
     
         6 . The coating dispersion according to  claim 1 , wherein the amount of calcined aluminum silicate is at least 5 wt % of the coating dispersion. 
     
     
         7 . The coating dispersion according to  claim 6 , wherein the amount of calcined aluminum silicate is not greater than 12 wt % of the coating dispersion. 
     
     
         8 . The coating dispersion according to  claim 1 , wherein the amount of acrylic polymers is at least 7 wt % of the coating dispersion. 
     
     
         9 . The coating dispersion according to  claim 8 , wherein the amount of acrylic polymers is not greater than 20 wt % of the coating dispersion. 
     
     
         10 . The coating dispersion according to  claim 1 , wherein the amount of the dihydrazide is at least 0.1 wt % of the coating dispersion. 
     
     
         11 . The coating dispersion according to  claim 10 , wherein the amount of the dihydrazide is not greater than 0.5 wt % of the coating dispersion. 
     
     
         12 . The coating dispersion according to  claim 1 , wherein the amount of the fluoroalkyl polymer is 0.1 wt % to 5 wt % of the coating dispersion. 
     
     
         13 . The coating dispersion according to  claim 1 , further comprising at least one ingredient selected from the group of Magnesium silicate, anhydrous aluminum silicate, or a mixture thereof of the coating dispersion. 
     
     
         14 . The coating dispersion according to  claim 13 , wherein the at least one ingredient is present in an amount of at least 2 wt % of the coating dispersion. 
     
     
         15 . The coating dispersion according to  claim 13 , wherein the at least one ingredient is present in an amount of not greater than 12 wt % of the coating dispersion. 
     
     
         16 . The coating dispersion according to  claim 1 , further comprising zinc oxide. 
     
     
         17 . The coating dispersion according to  claim 16 , wherein the zinc oxide is present in an amount of at least 0.2 wt % of the coating dispersion. 
     
     
         18 . The coating dispersion according to  claim 17 , wherein the zinc oxide is present in an amount of not greater than 1.2 wt % of the coating dispersion. 
     
     
         19 . A building article comprising the coating dispersion of  claim 1 . 
     
     
         20 . The building article according to  claim 19 , wherein the building article includes a tile, a mineral board, a gypsum board, fiberglass, or any combination thereof.