US2013023612A1PendingUtilityA1

Use of aldehyde scavengers in interior building products

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Assignee: USG INTERIORS LLCPriority: Jul 21, 2011Filed: Jun 7, 2012Published: Jan 24, 2013
Est. expiryJul 21, 2031(~5 yrs left)· nominal 20-yr term from priority
Inventors:Runhai LuTerry L. RosenstielSalvatore C. ImmordinoWeixin D. Song
A62D 3/33C09D 7/00C09D 7/65C09D 161/28C09D 161/00C09D 7/63
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Claims

Abstract

A coating for application to the surface of an interior building product comprises: a resin formulation such as a melamine formaldehyde resin characterized by its ability to strengthen the interior building product when applied as a coating to the building product; and an aldehyde scavenger selected from the group consisting of; tetraethylene pentamine, propionamide, caprolactam, ammonium hydroxide, sodium bisulfate, sodium metabisulfite, ammonium primary phosphate, ammonium secondary phosphate, a combination of ammonium primary phosphate and ammonium secondary phosphate, a combination of ammonium primary phosphate, ammonium secondary phosphate and a sulfite, a polyvinyl alcohol; adipic dihydrazide and a combination of a polyvinyl alcohol and adipic dihydrazide.

Claims

exact text as granted — not AI-modified
1 . A coating for application to the surface of an interior building product comprising:
 a resin formulation characterized by its ability to strengthen the interior building product when applied as a coating to the building product; and   an aldehyde scavenger selected from the group consisting of; tetraethylene pentamine, propionamide, caprolactam, ammonium hydroxide, sodium bisulfate, sodium metabisulfite, ammonium primary phosphate, ammonium secondary phosphate, a combination of ammonium primary phosphate and ammonium secondary phosphate, a combination of ammonium primary phosphate, ammonium secondary phosphate and a sulfite, a polyvinyl alcohol; adipic dihydrazide and a combination of a polyvinyl alcohol and adipic dihydrazide.   
     
     
         2 . The coating of  claim 1  wherein the interior building product comprises ceiling tile. 
     
     
         3 . The coating of  claim 1  wherein the resin formulation includes a melamine formaldehyde resin. 
     
     
         4 . The coating of  claim 3  wherein the aldehyde scavenger comprises a polyvinyl alcohol. 
     
     
         5 . The coating of  claim 4  wherein the polyvinyl alcohol comprises a polyvinyl alcohol having a CAS Number of 25213-24-5. 
     
     
         6 . The coating of  claim 5  wherein the interior building product comprises ceiling tile. 
     
     
         7 . The coating of  claim 1  wherein the aldehyde scavenger comprises adipic dihydrazide. 
     
     
         8 . The coating of  claim 7  wherein the interior building product comprises ceiling tile. 
     
     
         9 . The coating of  claim 3  wherein the melamine formaldehyde resin formulation comprises by weight:
 approximately 10% to 20% of a melamine formaldehyde resin; 
 approximately 20% to 60% of a calcium carbonate filler and approximately 0% to 10% of a clay filler; 
 approximately 20% to 80% water; 
 a catalyst selected from the group consisting of; ammonium chloride, magnesium chloride and a combination of ammonium chloride and magnesium chloride; and 
 sufficient defoamer to suppress the formation of any foam in the resin formulation. 
 
     
     
         10 . The coating of  claim 9  wherein the melamine formaldehyde resin formulation comprises by weight:
 approximately 10% to 20% of a melamine formaldehyde resin; 
 approximately 35% of a calcium carbonate filler and approximately 5% of a clay filler; and 
 approximately 40% water; 
 
     
     
         11 . The coating of  claim 10  wherein the aldehyde scavenger comprises a polyvinyl alcohol. 
     
     
         12 . The coating of  claim 11  wherein the polyvinyl alcohol comprises a polyvinyl alcohol having a CAS Number of 25213-24-5. 
     
     
         13 . The coating of  claim 12  wherein the interior building product comprises ceiling tile. 
     
     
         14 . The coating of  claim 10  wherein the aldehyde scavenger comprises adipic dihydrazide. 
     
     
         15 . The coating of  claim 14  wherein the interior building product comprises ceiling tile. 
     
     
         16 . The coating of  claim 10  wherein the aldehyde scavenger comprises a combination of a polyvinyl alcohol and adipic dihydrazide. 
     
     
         17 . The coating of  claim 16  wherein the interior building product comprises ceiling tile. 
     
     
         18 . The coating of  claim 17  wherein the polyvinyl alcohol comprises a polyvinyl alcohol having a CAS Number of 25213-24-5. 
     
     
         19 . The coating of  claim 18  wherein the interior building product comprises ceiling tile.

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