Invention Grant
- Patent Title: Building board and method of forming the building board
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Application No.: US15476786Application Date: 2017-03-31
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Publication No.: US10857770B2Publication Date: 2020-12-08
- Inventor: Choung-Houng Lai , Gerald Boydston , Bryan Wiltzius , Nathan Frailey , Michael J. Lemberger
- Applicant: CERTAINTEED GYPSUM, INC.
- Applicant Address: US PA Malvern
- Assignee: CERTAINTEED GYPSUM, INC.
- Current Assignee: CERTAINTEED GYPSUM, INC.
- Current Assignee Address: US PA Malvern
- Agency: Abel Schillinger, LLP
- Agent Thomas H. Osborn
- Main IPC: B32B27/12
- IPC: B32B27/12 ; B32B5/02 ; B32B13/14 ; B32B37/15 ; E04C2/04 ; E04C2/26 ; B32B13/02 ; B32B27/28 ; B32B13/12 ; B32B7/12 ; B32B13/04 ; B32B27/06 ; B32B27/36 ; B32B37/12 ; B32B3/26 ; E04C2/52 ; B32B27/32 ; B32B19/04 ; B32B27/34 ; B32B37/24 ; B32B38/00 ; B32B37/02
Abstract:
A building board including a cementitious layer between two fiber mats. At least one fiber mat forms with a polymer film a fiber mat/polymer film laminate. The cementitious layer of the building board contains a reactive water-insoluble polymer which improves binding of the fiber mat/polymer film laminate to the cementitious layer. The building board has a low water absorption and a high level surface finish.
Public/Granted literature
- US20170284093A1 BUILDING BOARD AND METHOD OF FORMING THE BUILDING BOARD Public/Granted day:2017-10-05
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