发明申请
- 专利标题: Fire-resistant gypsum panel
- 专利标题(中): 耐火石膏板
-
申请号: US11546736申请日: 2006-10-12
-
公开(公告)号: US20080087366A1公开(公告)日: 2008-04-17
- 发明人: Qiang Yu , Frederick T. Jones , Qingxia Liu
- 申请人: Qiang Yu , Frederick T. Jones , Qingxia Liu
- 主分类号: B32B37/00
- IPC分类号: B32B37/00
摘要:
A method of continuously forming a multilayer panel includes making a gypsum slurry, then dividing the gypsum slurry into at least a primary gypsum slurry and a secondary gypsum slurry. An additive slurry having water and an intumescent material is created, then added to the secondary gypsum slurry to make an expandable layer slurry that is spread over at least a portion of a facing material. The primary gypsum slurry is distributed over the secondary gypsum slurry over the facing material and the expanding layer slurry to form a core. Optionally, another layer, an edge coating, is applied to the expanding layer for additional fire protection. The edge coating includes a second intumescent material. During a fire, the expanding layer expands to increase the thickness of the fire exposed gypsum panel and the edge coating expands to seal the gap between adjoining gypsum panels.
公开/授权文献
- US07776170B2 Fire-resistant gypsum panel 公开/授权日:2010-08-17