US2012167510A1PendingUtilityA1

High density polyurethane and polyisocyanurate construction boards and composite boards

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Individually held — no corporate assignee on recordPriority: Feb 1, 2005Filed: Mar 12, 2012Published: Jul 5, 2012
Est. expiryFeb 1, 2025(expired)· nominal 20-yr term from priority
Inventors:Gregory A. BrandtJohn B. Letts
C08G 2110/0041Y10T428/249992Y10T428/249991Y10T428/249987Y10T428/249981Y10T428/249953Y10T428/24992E04D 13/00E04C 2/205B32B 2266/08B32B 29/007C08G 18/14B32B 15/046B32B 2307/712B32B 2419/06B32B 5/245B32B 2266/0278B32B 5/18B32B 15/20E04D 11/02B32B 27/12B32B 27/40
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Claims

Abstract

A high density construction board includes a cellular body having a first planar surface and a second planar surface. A first glass facer is positioned adjacent the first planar surface and a second glass facer is positioned adjacent the second planar surface. The cellular body of the construction board includes a polyurethane, a polyisocyanurate, or a mix of polyurethane and polyisocyanurate and has a density greater than about 2.5 pounds per cubic foot and less than 6 pounds per cubic foot.

Claims

exact text as granted — not AI-modified
1 . A high density construction board comprising:
 a cellular body having a first planar surface and a second planar surface,   a first facer adjacent said first planar surface and a second facer adjacent said second planar surface,   wherein said cellular body includes a polyurethane, a polyisocyanurate, or a mix of polyurethane and polyisocyanurate and has a density greater than about 2.5 pounds per cubic foot and less than 6 pounds per cubic foot, and   wherein said first facer and said second facer are formed from materials selected from the group consisting of coated glass fiber mats, uncoated glass fiber mats, chopped glass, and combinations thereof.   
     
     
         2 . The construction board of  claim 1 , wherein said density of said cellular body is greater than about 3 pounds per cubic foot. 
     
     
         3 . The construction board of  claim 2 , wherein said density of said cellular body is greater than about 3.5 pounds per cubic foot. 
     
     
         4 . The construction board of  claim 3 , wherein said density of said cellular body is between about 4 and about 5 pounds per cubic foot. 
     
     
         5 . The construction board of  claim 1 , wherein said cellular body includes a thickness greater than about 0.5 inches. 
     
     
         6 . The construction board of  claim 5 , wherein said thickness is from about 0.5 to about 4.5 inches. 
     
     
         7 . The construction board of  claim 6 , wherein said thickness is from about 1.0 to about 4.0 inches. 
     
     
         8 . The construction board of  claim 1  having an iso index of at least 175. 
     
     
         9 . A covered roof comprising:
 a roof deck; and   a high density construction board comprising a cellular body having a first planar surface and a second planar surface, a first facer adjacent said first planar surface and a second facer adjacent said second planar surface,   wherein said cellular body includes a polyurethane, a polyisocyanurate, or a mix of polyurethane and polyisocyanurate and has a density greater than about 2.5 pounds per cubic foot and less than 6 pounds per cubic foot, and   wherein said first facer and said second facer are formed from materials selected from the group consisting of coated glass fiber mats, uncoated glass fiber mats, chopped glass, and combinations thereof.   
     
     
         10 . The covered roof of  claim 9 , wherein said density of said cellular body is greater than about 3 pounds per cubic foot. 
     
     
         11 . The covered roof of  claim 10 , wherein said density of said cellular body is greater than about 3.5 pounds per cubic foot. 
     
     
         12 . The covered roof of  claim 11 , wherein said density of said cellular body is between about 4 and about 5 pounds per cubic foot. 
     
     
         13 . The covered roof of  claim 9 , wherein said cellular body includes a thickness greater than about 0.5 inches. 
     
     
         14 . The covered roof of  claim 9 , wherein said construction board has an iso index of at least 175. 
     
     
         15 . The covered roof of  claim 9  further comprising a protective membrane, wherein said construction board is between said roof deck and said protective membrane 
     
     
         16 . The covered roof of  claim 15 , wherein said protective membrane includes a polymeric membrane. 
     
     
         17 . The covered roof of  claim 15 , wherein said protective membrane includes a bituminous or asphalt membrane. 
     
     
         18 . The covered roof of  claim 15 , wherein said protective membrane derives from the application of hot asphalt to the roof. 
     
     
         19 . A method of covering a roof comprising:
 applying a high density construction board to the roof, the high density construction board comprising a cellular body having a first planar surface and a second planar surface, a first facer adjacent said first planar surface and a second facer adjacent said second planar surface, wherein said cellular body includes a polyurethane, a polyisocyanurate, or a mix of polyurethane and polyisocyanurate and has a density greater than about 2.5 pounds per cubic foot and less than 6 pounds per cubic foot, and wherein said first facer and said second facer are formed from materials selected from the group consisting of coated glass fiber mats, uncoated glass fiber mats, chopped glass, and combinations thereof.   
     
     
         20 . The method of  claim 19 , wherein said density of said cellular body is greater than about 3 pounds per cubic foot. 
     
     
         21 . The method of  claim 20 , wherein said density of said cellular body is greater than about 3.5 pounds per cubic foot. 
     
     
         22 . The method of  claim 21 , wherein said density of said cellular body is between about 4 and about 5 pounds per cubic foot. 
     
     
         23 . The method of  claim 19 , wherein said cellular body includes a thickness greater than about 0.5 inches. 
     
     
         24 . The method of  claim 19 , wherein said high density construction board has an iso index of at least 175. 
     
     
         25 . The method of  claim 20 , further comprising the step of applying a protective membrane to the roof subsequent to the step of applying a high density construction board. 
     
     
         26 . The method of  claim 25 , wherein said protective membrane includes a polymeric membrane. 
     
     
         27 . The method of  claim 25 , wherein said protective membrane includes a bituminous or asphalt membrane. 
     
     
         28 . The method of  claim 25 , wherein said protective membrane derives from the application of hot asphalt to the roof.

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