公开(公告)号：US12090744B2

公开(公告)日：2024-09-17

申请号：US15186257

申请日：2016-06-17

Applicant: United States Gypsum Company

Inventor： Alfred C. Li ,  Weixin D. Song ,  Yijun Sang ,  Gregg G. Diefenbacher ,  Annamaria Vilinska ,  Brian J. Christ ,  Fredrick T. Jones ,  Bradley W. Todd

IPC: B32B7/02 ,  B32B13/02 ,  B32B13/04 ,  B32B13/08 ,  B32B13/14 ,  B32B37/14 ,  C04B11/00 ,  C04B22/16 ,  C04B24/38 ,  C04B28/14 ,  E04C2/04 ,  B32B37/15 ,  C04B111/00 ,  C04B111/30

CPC classification number: B32B7/02 ,  B32B13/02 ,  B32B13/04 ,  B32B13/08 ,  B32B13/14 ,  B32B37/144 ,  C04B11/00 ,  C04B11/002 ,  C04B22/16 ,  C04B24/383 ,  C04B28/14 ,  E04C2/043 ,  B32B37/15 ,  B32B2250/04 ,  B32B2250/40 ,  B32B2260/028 ,  B32B2260/046 ,  B32B2262/101 ,  B32B2264/02 ,  B32B2264/0228 ,  B32B2264/06 ,  B32B2264/062 ,  B32B2307/50 ,  B32B2307/51 ,  B32B2307/536 ,  B32B2307/54 ,  B32B2307/718 ,  B32B2307/72 ,  B32B2419/00 ,  B32B2419/04 ,  B32B2419/06 ,  B32B2607/00 ,  C04B2111/00413 ,  C04B2111/0062 ,  C04B2111/30 ,  C04B2201/20 ,  C04B28/14 ,  C04B24/38 ,  C04B38/10 ,  C04B28/14 ,  C04B24/2623 ,  C04B38/10 ,  C04B28/14 ,  C04B22/0013 ,  C04B38/10 ,  C04B28/14 ,  C04B14/42 ,  C04B22/148 ,  C04B22/16 ,  C04B24/10 ,  C04B24/383 ,  C04B38/10 ,  C04B2103/10 ,  C04B2103/20 ,  C04B2103/40 ,  C04B28/14 ,  C04B14/42 ,  C04B22/0013 ,  C04B22/148 ,  C04B22/16 ,  C04B24/10 ,  C04B38/10 ,  C04B2103/10 ,  C04B2103/20 ,  C04B2103/40 ,  C04B28/14 ,  C04B14/42 ,  C04B22/148 ,  C04B22/16 ,  C04B24/10 ,  C04B24/2623 ,  C04B38/10 ,  C04B2103/10 ,  C04B2103/20 ,  C04B2103/40 ,  C04B28/14 ,  C04B14/42 ,  C04B22/16 ,  C04B24/10 ,  C04B24/16 ,  C04B24/2623 ,  C04B24/2647 ,  C04B2103/10 ,  C04B2103/20

Abstract: Disclosed is a composite gypsum board comprising a board core and a concentrated layer of substantial thickness (e.g., at least about 0.02 inches). The concentrated layer includes a higher weight percentage of an enhancing additive than the hoard core. The board core has a thickness greater than the thickness of the concentrated layer and forms the bulk of the board volume. The concentrated layer has a higher density (e.g., at least about 1.1 times greater) than the density of the board core. Also disclosed is a method of preparing a composite gypsum board.

公开(公告)号：US11008257B2

公开(公告)日：2021-05-18

申请号：US16027028

申请日：2018-07-03

Applicant: United States Gypsum Company

Inventor： Yijun Sang ,  Brian J. Christ

IPC: C04B28/14 ,  C04B24/38 ,  C04B22/16 ,  E04C2/04 ,  C04B24/10 ,  B32B13/02 ,  C04B111/00 ,  E04B2/72

Abstract: Disclosed are product (e.g., board), slurry, and methods relating to an uncooked starch that can be used to enhance strength in one or more gypsum layers in the board. The uncooked starch has a hot water viscosity of from about 20 BU to about 300 BU according to the HWVA method, and/or a mid-range peak viscosity of from about 120 Brabender Units to about 1000 Brabender Units.

公开(公告)号：US20160375656A1

公开(公告)日：2016-12-29

申请号：US15186212

申请日：2016-06-17

Applicant: United States Gypsum Company

Inventor： Alfred C. Li ,  Weixin D. Song ,  Yijun Sang ,  Gregg G. Diefenbacher ,  Annamaria Vilinska ,  Brian J. Christ ,  Fredrick T. Jones ,  Bradley W. Todd

IPC: B32B13/02 ,  C04B24/38 ,  B32B13/08 ,  C04B11/00 ,  B32B13/04 ,  B32B7/02

Abstract: Disclosed is a composite gypsum board comprising a board core and a concentrated layer of substantial thickness (e.g., at least about 0.02 inches). The concentrated layer includes a higher weight percentage of an enhancing additive than the board core. The board core has a thickness greater than the thickness of the concentrated layer and forms the bulk of the board volume. The concentrated layer has a higher density (e.g., at least about 1.1 times greater) than the density of the board core. Also disclosed is a method of preparing a composite gypsum board.