公开(公告)号：EP2781492B1

公开(公告)日：2019-07-24

申请号：EP14169525.4

申请日：2012-02-24

Applicant: UNITED STATES GYPSUM COMPANY

Inventor： YU, Qiang ,  LUAN, Wenqi ,  SONG, Weixin D. ,  VEERAMASUNENI, Srinivas ,  LI, Alfred

IPC: C04B20/06 ,  C04B28/14 ,  B28B1/50 ,  B32B38/00 ,  C04B111/00 ,  C04B111/28

公开(公告)号：EP3472120A1

公开(公告)日：2019-04-24

申请号：EP17716723.6

申请日：2017-03-29

Applicant: United States Gypsum Company

Inventor： VILINSKA, Annamaria ,  LI, Alfred C. ,  SONG, Weixin D.

IPC: C04B28/14 ,  C04B28/04 ,  C04B38/10 ,  C04B24/02 ,  B01F17/00 ,  B01F15/04 ,  B01F3/04 ,  B28C7/04 ,  B28C5/12 ,  C04B103/48

公开(公告)号：EP2678289B1

公开(公告)日：2018-08-22

申请号：EP12709203.9

申请日：2012-02-24

Applicant: United States Gypsum Company

Inventor： YU, Qiang ,  LUAN, Wenqi ,  SONG, Weixin D. ,  VEERAMASUNENI, Srinivas ,  LI, Alfred

IPC: C04B20/06 ,  C04B28/14

CPC classification number: B28B1/50 ,  B28B11/12 ,  B28B11/243 ,  B32B5/16 ,  B32B9/005 ,  B32B38/164 ,  B32B2307/3065 ,  B32B2607/00 ,  C04B20/06 ,  C04B28/14 ,  C04B28/145 ,  C04B2111/0062 ,  C04B2111/28 ,  C04B2201/30 ,  E04B1/942 ,  E04C2/04 ,  Y10T428/249968 ,  Y10T428/249979 ,  Y10T428/26 ,  Y10T428/31971 ,  C04B14/386 ,  C04B14/42 ,  C04B14/46 ,  C04B20/0024 ,  C04B22/16 ,  C04B24/38 ,  C04B38/0054 ,  C04B38/106 ,  C04B2103/408 ,  C04B14/202

Abstract: A reduced weight, reduced density gypsum panel that includes high expansion vermiculite with fire resistance capabilities that are at least comparable to (if not better than) commercial fire rated gypsum panels with a much greater gypsum content, weight and density.

公开(公告)号：EP3356307A1

公开(公告)日：2018-08-08

申请号：EP16736335.7

申请日：2016-06-23

Applicant: United States Gypsum Company

Inventor： VILINSKA, Annamaria ,  LI, Alfred C. ,  SONG, Weixin D.

IPC: C04B28/14 ,  C04B28/04 ,  C04B38/10 ,  C04B24/02 ,  B01F17/00 ,  C04B103/48

CPC classification number: C04B28/14 ,  B28B1/29 ,  B28B17/0036 ,  B28B19/0092 ,  B28C5/1269 ,  B32B5/20 ,  B32B9/02 ,  B32B13/08 ,  B32B2266/049 ,  B32B2266/10 ,  B32B2607/00 ,  B32B2607/02 ,  C04B24/026 ,  C04B38/10 ,  C04B38/106 ,  C04B2103/48 ,  C04B2111/00612 ,  C04B2111/0062 ,  E04C2/043 ,  C04B22/16 ,  C04B24/383 ,  C04B14/42 ,  C04B2103/20 ,  C04B2103/40 ,  C04B24/16 ,  C04B38/0067 ,  C04B24/38 ,  C04B2103/408 ,  C04B28/04 ,  C04B28/06

Abstract: Disclosed is a foam modifier, e.g., useful for gypsum or cement slurries. The foam modifier comprises a fatty alcohol that is added to a gypsum or cement slurry that includes foaming agent, such as an alkyl sulfate surfactant. The fatty alcohol can be a C6-C16 fatty alcohol in some embodiments. The use of such a foam modifier can be used, for example, to stabilize the foam, reduce waste of foaming agent, improve void size control in the final product, and improve the gypsum board manufacturing process.

公开(公告)号：EP3313659A1

公开(公告)日：2018-05-02

申请号：EP16738261.3

申请日：2016-06-22

Applicant: United States Gypsum Company

Inventor： LI, Alfred C. ,  SONG, Weixin D. ,  SANG, Yijun ,  DIEFENBACHER, Gregg G. ,  VILINSKA, Annamaria ,  CHRIST, Brian J. ,  JONES, Frederick T. ,  TODD, Bradley W.

IPC: B32B7/02 ,  B32B13/02 ,  B32B13/04 ,  B32B13/08 ,  B32B13/14 ,  E04C2/04 ,  C04B28/14 ,  C04B111/00

CPC classification number: B32B7/02 ,  B32B13/02 ,  B32B13/04 ,  B32B13/08 ,  B32B13/14 ,  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 ,  C04B11/00 ,  C04B11/002 ,  C04B22/16 ,  C04B24/383 ,  C04B28/14 ,  C04B2111/00413 ,  C04B2111/0062 ,  C04B2111/30 ,  C04B2201/20 ,  E04C2/043 ,  C04B24/38 ,  C04B38/10 ,  C04B24/2623 ,  C04B22/0013 ,  C04B14/42 ,  C04B22/148 ,  C04B24/10 ,  C04B2103/10 ,  C04B2103/20 ,  C04B2103/40 ,  C04B24/16 ,  C04B24/2647

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.

公开(公告)号：EP3058354A1

公开(公告)日：2016-08-24

申请号：EP14816458.5

申请日：2014-10-14

Applicant: United States Gypsum Company

Inventor： CAO, Bangji ,  LECKIE, Scott ,  SONG, Weixin D. ,  CHAN, Cesar

IPC: G01N25/50

CPC classification number: G01K3/04 ,  G01N25/18 ,  Y10T29/49771

Abstract: A system and method for predicting wallboard fire performance in a standard test includes procuring a sample of the wallboard for testing, and mounting the sample into a fixture so that one side of the sample is exposed to a heat source. A cavity is created between the sample and the fixture such that the sample is disposed between the heat source and the cavity. A temperature measurement is taken at a predetermined location within the cavity over time, and the temperature is monitored and recorded as a series of temperature readings using a computer-readable medium. The series is analyzed to determine an index time at which the temperature reaches a predetermined temperature threshold. The index time is correlated to a standard-test fire performance using the computer-readable medium and, based on the correlation, a fire performance of the wallboard in a standard test procedure is predicted.

公开(公告)号：EP2781492A3

公开(公告)日：2015-03-25

申请号：EP14169525.4

申请日：2012-02-24

Applicant: UNITED STATES GYPSUM COMPANY

Inventor： YU, Qiang ,  LUAN, Wenqi ,  SONG, Weixin D. ,  VEERAMASUNENI, Srinivas ,  LI, Alfred

IPC: C04B20/06 ,  C04B28/14 ,  B28B1/50 ,  B32B38/00 ,  C04B111/00 ,  C04B111/28

CPC classification number: B28B1/50 ,  B28B11/12 ,  B28B11/243 ,  B32B5/16 ,  B32B9/005 ,  B32B38/164 ,  B32B2307/3065 ,  B32B2607/00 ,  C04B20/06 ,  C04B28/14 ,  C04B28/145 ,  C04B2111/0062 ,  C04B2111/28 ,  C04B2201/30 ,  E04B1/942 ,  E04C2/04 ,  Y10T428/249968 ,  Y10T428/249979 ,  Y10T428/26 ,  Y10T428/31971 ,  C04B14/386 ,  C04B14/42 ,  C04B14/46 ,  C04B20/0024 ,  C04B22/16 ,  C04B24/38 ,  C04B38/0054 ,  C04B38/106 ,  C04B2103/408 ,  C04B14/202

Abstract: A reduced weight, reduced density gypsum panel that includes high expansion vermiculite with fire resistance capabilities that are at least comparable to (if not better than) commercial fire rated gypsum panels with a much greater gypsum content, weight and density.