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公开(公告)号：EP2326473B1
公开(公告)日：2019-03-06
申请号：EP09812081.9
申请日：2009-08-28
发明人： YU, Qiang , SCHENCK, Ron , DIGENNARO, Salvatore , FOLSON, Stephen , HENRY, Kevin , GUINED, Tim
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公开(公告)号：EP2630101A1
公开(公告)日：2013-08-28
申请号：EP11776641.0
申请日：2011-10-14
发明人： GROZA, Brent , YU, Qiang
CPC分类号： C04B28/14 , C04B11/002 , C04B20/026 , C04B22/143 , C04B40/0039 , C04B20/008 , C04B22/16 , C04B24/003 , C04B22/0086
摘要： The present invention relates to an improved method of preparing wet gypsum accelerator comprising the use of dry gypsum having a median particle size of about 20 microns or less. In addition, the present invention relates to a method of hydrating calcined gypsum to form an interlocking matrix of set gypsum comprising the use of the dry gypsum. Furthermore, the invention relates to wet gypsum accelerator and set gypsum-containing compositions and products prepared by the foregoing process and method.
摘要翻译： 本发明涉及制备湿石膏促进剂的改进方法，其包括使用中值粒度为约20微米或更小的干石膏。 另外，本发明涉及一种水合煅烧石膏以形成凝固石膏的互锁基体的方法，包括使用该干石膏。 此外，本发明涉及通过上述方法和方法制备的湿石膏促进剂和凝固石膏组合物和产品。
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公开(公告)号：EP2326473A2
公开(公告)日：2011-06-01
申请号：EP09812081.9
申请日：2009-08-28
发明人： YU, Qiang , SCHENCK, Ron , DIGENNARO, Salvatore , FOLSON, Stephen , HENRY, Kevin , GUINED, Tim
CPC分类号： C04B28/145 , B01F3/1271 , B01F5/0413 , B28B19/0092 , B28C7/0418 , C04B2111/0062 , C04B14/42 , C04B22/16 , C04B24/22 , C04B24/38 , C04B40/0028
摘要： The present invention provides a wet starch preparation system for gypsum wallboard comprising a loss-in-weight starch feeder, a venturi mixer, a vacuum pick-up unit for supplying the dry starch from the feeder at an adjustable rate to the venturi mixer, a first water pump for supplying water at an adjustable rate to the venturi mixer to form a starch pre-dispersion of from about 2% to about 10% by weight starch and a second water pump for supplying gauging water to the starch pre-dispersion, the system equipped with appropriate system controls. The present system provides more efficient use of starch such that the amount of pregelatinized starch is at least about 10% less than a system in which the starch is not pre-dispersed in water prior to the board mixer. The system can be used to make gypsum-containing products including gypsum wallboard having increased board strength and reduced board weight.
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公开(公告)号：EP1606228A2
公开(公告)日：2005-12-21
申请号：EP04758242.4
申请日：2004-03-24
发明人： LIU, Qingxia , NATESAIYER, Kumar , YU, Qiang
CPC分类号： C04B28/145 , C04B40/065 , C04B2111/10 , C04B2201/10 , C04B24/2641 , C04B24/2676 , C04B24/282 , C04B38/10 , C04B2103/0086 , C04B2103/22 , C04B2103/30 , C04B2103/44 , C04B2103/50 , C04B2103/601 , C04B2103/67 , C04B2103/69 , C04B24/122 , C04B24/2647 , C04B22/142
摘要： A ready-mixed composition, which sets when mixed with an activator for the reaction of calcined gypsum with water to form set gypsum, is disclosed. The composition comprises water and calcined gypsum in a weight ratio of water to calcined gypsum of from about 0.15 to about 0.5, as well as a set preventer comprising a polyacrylic acid and/or a salt thereof. The composition has a viscosity of from about 5,000 centipoise to about 48,000 centipoise. Also disclosed is a kit that comprises separately packaged components. One of the components is a composition comprising calcined gypsum and a polyacrylic acid and/or a salt thereof, and, optionally, water. Another component of the kit comprises an activator which, when mixed with the composition, permits the composition to set.
摘要翻译： 公开了一种预混合组合物，其与煅烧石膏与水的反应的活化剂混合以形成集合的石膏时设定。 组合物包含水和煅烧石膏的重量比为约0.15至约0.5的水和煅烧石膏，以及包含聚丙烯酸和/或其盐的固化防止剂。 组合物的粘度为约5,000厘泊至约48,000厘泊。 还公开了包括单独包装的组件的试剂盒。 组分之一是包含煅烧石膏和聚丙烯酸和/或其盐，和任选的水的组合物。 试剂盒的另一组分包含活化剂，当与组合物混合时，其可以使组合物凝固。
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5.发明授权
公开(公告)号：EP1114005B1
公开(公告)日：2005-11-16
申请号：EP99963139.3
申请日：1999-02-18
发明人： YU, Qiang , SUCECH, Steven, W. , GROZA, Brent, E. , MLINAC, Raymond, J. , JONES, Frederick, T. , BOEHNERT, Frederick, M.
CPC分类号： C04B41/009 , C04B22/16 , C04B28/14 , C04B41/52 , C04B41/70 , C04B2111/00094 , C04B2111/0062 , E04C2/04 , C04B22/12 , C04B22/165 , C04B24/16 , C04B24/383 , C04B38/10 , C04B2103/10 , C04B2103/40 , C04B2103/50 , C04B41/46 , C04B41/502 , C04B41/5012 , C04B41/5015
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公开(公告)号：EP2212105B2
公开(公告)日：2019-07-17
申请号：EP08845911.0
申请日：2008-10-15
发明人： YU, Qiang , TRACY, Sharon L.
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公开(公告)号：EP2678290B1
公开(公告)日：2018-08-29
申请号：EP12716775.7
申请日：2012-02-24
CPC分类号： 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
摘要： An about 5/8 inch to 3/4 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.
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公开(公告)号：EP1910243B1
公开(公告)日：2017-04-12
申请号：EP06772196.9
申请日：2006-06-05
发明人： WANG, Xuming , LIU, Qingxia , REED, Paul , YU, Qiang
CPC分类号： C04B28/14 , C04B2111/0062 , C04B2111/27 , Y02W30/92 , Y10T428/31663 , Y10T442/665 , C04B18/08 , C04B20/0048 , C04B22/066 , C04B24/383 , C04B24/42 , C04B38/02 , C04B40/0028 , C04B2103/12 , C04B2103/22 , C04B2103/408 , C04B2103/67
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9.发明授权
公开(公告)号：EP2026960B1
公开(公告)日：2016-10-05
申请号：EP07754981.4
申请日：2007-04-06
发明人： YU, Qiang , SONG, Weixin, David
CPC分类号： B32B13/04 , C04B24/38 , C04B28/145 , C04B2111/0062 , C04B20/008 , C04B24/16 , C04B24/226 , C04B40/0028
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公开(公告)号：EP2089221A2
公开(公告)日：2009-08-19
申请号：EP07838978.0
申请日：2007-09-28
发明人： YU, Qiang , JONES, Frederick T. , LIU, Qingxia
IPC分类号： B32B18/00
CPC分类号： E04C2/043 , C04B28/14 , C04B2111/0062 , C04B2111/28 , C04B2111/285 , C04B2111/34 , E04F13/04 , Y02W30/94 , Y10T428/23 , Y10T428/231 , Y10T428/232 , Y10T428/233 , Y10T428/234 , Y10T428/236 , Y10T428/237 , C04B14/024 , C04B14/043 , C04B14/08 , C04B14/10 , C04B14/20 , C04B14/202 , C04B14/42 , C04B18/146 , C04B22/143 , C04B40/0028
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.
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