发明申请
US20120167509A1 HIGH DENSITY POLYURETHANE AND POLYISOCYANURATE CONSTRUCTION BOARDS AND COMPOSITE BOARDS
审中-公开
高密度聚氨酯和聚异氰酸酯结构板和复合板
- 专利标题： HIGH DENSITY POLYURETHANE AND POLYISOCYANURATE CONSTRUCTION BOARDS AND COMPOSITE BOARDS
- 专利标题（中）： 高密度聚氨酯和聚异氰酸酯结构板和复合板
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申请号： US13414054申请日： 2012-03-07
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公开(公告)号： US20120167509A1公开(公告)日： 2012-07-05
- 发明人: Gregory A. BRANDT , John B. Letts
- 申请人： Gregory A. BRANDT , John B. Letts
- 主分类号： E04D3/35
- IPC分类号： E04D3/35 ; E04D3/34 ; E04B1/66 ; E04B1/92 ; E04C2/22 ; E04C2/26
摘要：
A covered roof includes a roof deck, an insulation board, and a coverboard. The insulation board includes a polyurethane, a polyisocyanurate, or a mix of polyurethane and polyisocyanurate cellular structure, has a density that is less than 2.5 pounds per cubic foot, and has a first planar surface and a second planar surface, each having a facer positioned adjacent thereto. The coverboard includes a polyurethane, a polyisocyanurate, or a mix of polyurethane and polyisocyanurate cellular structure, has a density greater than about 2.5 pounds per cubic foot and less than 6 pounds per cubic foot, an iso index of at least 175, and a first planar surface and a second planar surface, each having a facer positioned adjacent thereto.
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