公开(公告)号：US20120251813A1

公开(公告)日：2012-10-04

申请号：US13493941

申请日：2012-06-11

Applicant: Qiang YU ,  Weixin David SONG ,  Michael LYNN

Inventor： Qiang YU ,  Weixin David SONG ,  Michael LYNN

IPC: B32B3/26 ,  B32B13/02 ,  B32B13/00

CPC classification number: C04B11/00 ,  C04B22/16 ,  C04B24/226 ,  C04B24/383 ,  C04B28/14 ,  C04B2103/0045 ,  C04B2103/408 ,  C04B2111/0062 ,  Y02W30/97 ,  Y10T428/249953 ,  Y10T428/2978 ,  Y10T428/31971 ,  Y10T428/31993 ,  Y10T442/665 ,  C04B14/42 ,  C04B18/24

Abstract: The invention generally provides gypsum-containing slurries including stucco, naphthalenesulfonate dispersant, and pregelatinized starch. The naphthalenesulfonate dispersant is present in an amount of about 0.1%-3.0% by weight based on the weight of dry stucco. The pregelatinized starch is present in an amount of at least about 0.5% by weight up to about 10% by weight of pregelatinized starch by weight based on the weight of dry stucco in the formulation. Other slurry additives can include trimetaphosphate salts, accelerators, binders, paper fiber, glass fiber, and other known ingredients. The invention also comprises the gypsum-containing products made with such slurries, for example, gypsum wallboard, and a method of making gypsum wallboard.

Abstract translation: 本发明通常提供含石膏，萘磺酸盐分散剂和预胶化淀粉的含石膏的浆料。 基于干灰泥的重量，萘磺酸盐分散剂的存在量为约0.1重量％〜3.0重量％。 基于制剂中干灰泥的重量，预胶化淀粉的存在量为预胶化淀粉的至少约0.5重量％至多约10重量％。 其它浆料添加剂可以包括三偏磷酸盐，促进剂，粘合剂，纸纤维，玻璃纤维和其它已知成分。 本发明还包括用这种浆料制成的含石膏的产品，例如石膏墙板，以及制造石膏墙板的方法。

公开(公告)号：US20110195241A1

公开(公告)日：2011-08-11

申请号：US13035800

申请日：2011-02-25

Applicant: Qiang Yu ,  Weixin David Song ,  Srinivas Veeramasuneni ,  Wenqi Luan

Inventor： Qiang Yu ,  Weixin David Song ,  Srinivas Veeramasuneni ,  Wenqi Luan

IPC: B32B13/00 ,  C04B28/14 ,  B32B15/00 ,  B32B21/00 ,  B32B37/02 ,  B32B37/24 ,  B32B38/10 ,  B32B38/16

CPC classification number: C04B28/14 ,  B32B13/08 ,  B32B2307/3065 ,  B32B2307/536 ,  B32B2307/72 ,  B32B2419/00 ,  B32B2607/00 ,  B32B2607/02 ,  C04B20/06 ,  C04B22/16 ,  C04B24/20 ,  C04B24/383 ,  C04B28/145 ,  C04B2103/408 ,  C04B2111/0062 ,  C04B2111/28 ,  C04B2111/34 ,  C04B2201/20 ,  E04C2/043 ,  E04C2/28 ,  Y02W30/97 ,  Y10T156/1052 ,  Y10T428/27 ,  Y10T428/31678 ,  Y10T428/31982 ,  Y10T428/31989 ,  C04B14/42 ,  C04B18/24 ,  C04B24/226 ,  C04B38/10 ,  C04B14/386

Abstract: An about ⅝ inch to ¾ inch thick low weight, low density gypsum panel with fire resistance capabilities sufficient to provide a Thermal Insulation Index of at least 17.0 minutes which when subjected to U419 test procedures will not fail for at least 30 minutes and, in selected embodiments, also has outstanding water resistance properties.

Abstract translation: 大约⅝英寸至¾英寸厚的低重量，低密度石膏板，具有足够的耐火能力，足以提供至少17.0分钟的绝热指数，当经受U419测试程序时，至少30分钟不会失效，并且在选定的 实施方案也具有优异的耐水性。

公开(公告)号：US20100239886A1

公开(公告)日：2010-09-23

申请号：US12795125

申请日：2010-06-07

Applicant: Qiang Yu ,  Weixin David Song ,  Michael Lynn

Inventor： Qiang Yu ,  Weixin David Song ,  Michael Lynn

IPC: B32B13/08 ,  B32B13/00 ,  B32B38/10

CPC classification number: C04B11/00 ,  C04B22/16 ,  C04B24/226 ,  C04B24/383 ,  C04B28/14 ,  C04B2103/0045 ,  C04B2103/408 ,  C04B2111/0062 ,  Y02W30/97 ,  Y10T428/249953 ,  Y10T428/2978 ,  Y10T428/31971 ,  Y10T428/31993 ,  Y10T442/665 ,  C04B14/42 ,  C04B18/24

Abstract: The invention generally provides gypsum-containing slurries including stucco, naphthalenesulfonate dispersant, and pregelatinized starch. The naphthalenesulfonate dispersant is present in an amount of about 0.1%-3.0% by weight based on the weight of dry stucco. The pregelatinized starch is present in an amount of at least about 0.5% by weight up to about 10% by weight of pregelatinized starch by weight based on the weight of dry stucco in the formulation. Other slurry additives can include trimetaphosphate salts, accelerators, binders, paper fiber, glass fiber, and other known ingredients. The invention also comprises the gypsum-containing products made with such slurries, for example, gypsum wallboard, and a method of making gypsum wallboard.

Abstract translation: 本发明通常提供含石膏，萘磺酸盐分散剂和预胶化淀粉的含石膏的浆料。 基于干灰泥的重量，萘磺酸盐分散剂的存在量为约0.1重量％至3.0重量％。 基于制剂中干灰泥的重量，预胶化淀粉的存在量为预胶化淀粉的至少约0.5重量％至多约10重量％。 其它浆料添加剂可以包括三偏磷酸盐，促进剂，粘合剂，纸纤维，玻璃纤维和其它已知成分。 本发明还包括用这种浆料制成的含石膏的产品，例如石膏墙板，以及制造石膏墙板的方法。

公开(公告)号：US20080069762A1

公开(公告)日：2008-03-20

申请号：US11533604

申请日：2006-09-20

Applicant: Michael R. LYNN ,  Weixin David SONG ,  Qingxia LIU ,  Qiang YU ,  Michael L. CLOUD

Inventor： Michael R. LYNN ,  Weixin David SONG ,  Qingxia LIU ,  Qiang YU ,  Michael L. CLOUD

IPC: C01F11/46

CPC classification number: C01F11/466 ,  C04B11/002 ,  C04B11/024 ,  C04B11/032

Abstract: A process is disclosed for making a blend of alpha- and beta-stucco including a slurry calcination step to produce alpha calcium sulfate hemihydrate followed by a fluidized bed calcination step to produce beta calcium sulfate hemihydrate. The process starts with 50-75% gypsum-containing solids slurry, and then steam calcines the slurry in a first reactor to form partially calcined gypsum slurry which contains calcium sulfate dihydrate and alpha calcium sulfate hemihydrate. The partially calcined slurry is then dewatered. Then the filter cake is fed into a kettle to complete the calcination process by converting the calcium sulfate dihydrate of the filter cake material into beta calcium sulfate hemihydrate.

Abstract translation: 公开了一种制备包括浆料煅烧步骤的α-和β-灰泥混合物以产生α硫酸钙半水合物，然后进行流化床煅烧步骤以产生β硫酸钙半水合物的方法。 该方法从50-75％含石膏固体浆料开始，然后蒸汽在第一反应器中煅烧浆料，以形成含有硫酸钙二水合物和α硫酸钙半水合物的部分煅烧石膏浆料。 然后将部分煅烧的浆料脱水。 然后通过将滤饼材料的硫酸钙二水合物转化成β硫酸钙半水合物将滤饼进料到釜中以完成煅烧过程。