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公开(公告)号：US06221151B1
公开(公告)日：2001-04-24
申请号：US09375093
申请日：1999-08-16
IPC分类号： C04B1100
CPC分类号： C04B40/0039 , C04B22/143 , C04B28/14 , C04B2103/12 , C04B20/026 , C04B24/38
摘要： A composition for accelerating the setting reaction of an aqueous calcined gypsum slurry, and a method of making the same are disclosed. The composition includes a vibratory ball milled mixture of calcium sulfate dihydrate and a surfactant. The composition is prepared by subjecting the mixture to the high-frequency, low-impact grinding action of a vibratory ball mill. The resultant composition has a potency superior to that of conventional gypsum set accelerators.
摘要翻译： 公开了一种用于加速水性煅烧石膏浆料的凝固反应的组合物及其制备方法。 该组合物包括硫酸钙二水合物和表面活性剂的振动球磨混合物。 通过使混合物经受振动球磨机的高频，低冲击研磨作用来制备组合物。 所得组合物的效力优于常规石膏组加速剂。
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公开(公告)号：US4502901A
公开(公告)日：1985-03-05
申请号：US543174
申请日：1983-10-19
申请人： Edward A. Burkard
发明人： Edward A. Burkard
CPC分类号： C04B11/264
摘要： By-product gypsum, which is formed during a flue gas desulfurization process, (FGD gypsum) is carefully formed as an aqueous slurry of crystals having a mean particle diameter of between about 35 microns and 80 microns and filtered, which filter cake is substantially completely dried before calcination, without any substantial grinding action, the crystals are then flash calcined to a hemihydrate, then ground, to reduce consistency, and then formed into an aqueous slurry from which a paper-covered gypsum board is formed of superior core quality.
摘要翻译： 在烟道气脱硫过程中形成的副产物石膏（FGD石膏）小心地形成为平均粒径为约35微米至80微米的晶体的水性浆料，并过滤，该滤饼基本上完全 在煅烧前干燥，没有任何明显的研磨作用，然后将晶体闪蒸煅烧成半水合物，然后研磨以降低稠度，然后形成含水浆料，由此形成具有优异核心质量的纸覆盖的石膏板。
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公开(公告)号：US4019920A
公开(公告)日：1977-04-26
申请号：US580136
申请日：1975-05-23
CPC分类号： C04B28/14
摘要： A gypsum set accelerator, produced by compression milling a mixture of ground gypsum rock and starch, and the addition thereof to an aqueous slurry of settable calcined gypsum such as in the forming of paper-covered gypsum wallboard.
摘要翻译： 通过将研磨的石膏岩和淀粉的混合物进行压缩研磨而制成的石膏凝固加速器，以及将其添加到可固化煅烧石膏的水性浆料中，例如在纸覆盖的石膏墙板的形成中。
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4.发明授权Cementitious gypsum-containing binders and compositions and materials made therefrom 失效含水泥石膏的粘合剂和由其制成的组合物和材料
公开(公告)号：US5858083A
公开(公告)日：1999-01-12
申请号：US858243
申请日：1997-05-19
申请人： Elisha Stav , Edward A. Burkard , Ronald S. Finkelstein , Daniel A. Winkowski , Lambert J. Metz , Patrick J. Mudd
发明人： Elisha Stav , Edward A. Burkard , Ronald S. Finkelstein , Daniel A. Winkowski , Lambert J. Metz , Patrick J. Mudd
IPC分类号： A62D1/00 , C04B28/14 , C04B111/28 , C04B111/62 , C04B7/04 , C04B11/28
CPC分类号： C04B28/147 , A62D1/0007 , A62D1/0014 , C04B2111/00146 , C04B2111/0075 , C04B2111/28 , C04B2111/62 , Y02W30/92 , Y02W30/94 , Y02W30/97
摘要： Cementitious binders include calcium sulfate beta-hemihydrate, a cement component comprising Portland cement, and either silica fume or rice-husk ash. The silica fume or rice-husk ash component is at least about 92 wt % amorphous silica and has an alumina content of about 0.6 wt % or less.
摘要翻译： 水泥粘合剂包括硫酸钙β-半水合物，包含硅酸盐水泥的水泥组分，以及硅灰或稻壳灰。 硅粉或稻壳灰分成分为至少约92重量％的无定形二氧化硅，氧化铝含量为约0.6重量％以下。
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5.发明授权
公开(公告)号：US5685903A
公开(公告)日：1997-11-11
申请号：US713727
申请日：1996-09-13
CPC分类号： A62D1/0007 , A62D1/0014 , C04B28/147 , C04B2111/62 , Y02W30/92 , Y02W30/94
摘要： A cementitious composition useful for water-resistant construction materials, including floor underlayments, backing boards, self-leveling floor materials, road patching materials, fiberboard, fire-proofing sprays, and fire-stopping materials includes about 20 wt. % to about 75 wt. % calcium sulfate beta-hemihydrate, about 10 wt. % to about 50 wt. % Portland cement, about 4 wt. % to about 20 wt. % silica fume and about 1 wt. % to about 50 wt. % pozzolanic aggregate. The Portland cement component may also be a blend of Portland cement with fly ash and/or ground blast slag.
摘要翻译： 用于防水建筑材料（包括地板底层，背板，自流平地板材料，道路修补材料，纤维板，防火喷雾剂和防火材料）的水泥组合物包括约20wt。 ％至约75wt。 ％硫酸钙β-半水合物，约10重量％ ％至约50wt。 ％硅酸盐水泥，约4wt。 ％至约20wt。 ％硅粉和约1wt。 ％至约50wt。 ％火山灰聚集。 波特兰水泥组分也可以是波特兰水泥与粉煤灰和/或粉碎渣的混合物。
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公开(公告)号：US4564544A
公开(公告)日：1986-01-14
申请号：US556969
申请日：1983-12-01
申请人： Edward A. Burkard , James J. Segada
发明人： Edward A. Burkard , James J. Segada
CPC分类号： E04C2/043 , C04B14/20 , C04B28/14 , C04B2111/0062 , C04B2111/28 , Y10S428/92 , Y10S428/921 , Y10T428/232 , Y10T428/31989
摘要： A fire-retardant gypsum wallboard having, in the gypsum core, about 2% by weight of a feldspar-free muscovite, in combination with other minor additives including 1/2 inch long glass fibers.
摘要翻译： 一种阻燃石膏墙板，其在石膏芯中具有约2重量％的无长石白云母，以及其它次要添加剂，包括1/2英寸长的玻璃纤维。
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公开(公告)号：US4057443A
公开(公告)日：1977-11-08
申请号：US716239
申请日：1976-08-20
CPC分类号： B01F13/1027 , B01F3/04453 , B28C5/386 , B32B13/08
摘要： Lightweight gypsum wallboard produced by continuously combining a small amount of surface active agent with a liquid stream which stream is made up of substantially all of the liquids to be used in the manufacture of a continuous web of gypsum wallboard, subjecting this mixture to an intense agitation with vaned saw tooth-like rotary blades in a foam generator while adding a controlled quantity of air thereto, forming a uniformly dispersed foam of very small bubbles from the liquid by completely generating all of the surface active agent therein to form this foam, and mixing this foamed liquid with finely ground dry calcined gypsum in a suitable mixing device to form a foamed settable gypsum slurry, disposing the slurry between paper cover sheets, and forming a continuous web of gypsum wallboard.
摘要翻译： 通过将少量表面活性剂与液体流连续地组合而制得的轻质石膏墙板，该流由基本上所有的液体组成，用于制造连续的石膏墙板网，使该混合物剧烈搅拌 在泡沫发生器中具有锯齿状旋转叶片，同时向其中加入可控量的空气，通过在其中完全产生所有表面活性剂形成泡沫，从而形成均匀分散的泡沫，从而形成非常小的气泡，并混合 这种泡沫液体在合适的混合装置中具有细磨的干煅烧石膏，以形成发泡的可固化石膏浆料，将浆料置于纸盖板之间，并形成连续的石膏墙板。
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8.发明授权
公开(公告)号：US5718759A
公开(公告)日：1998-02-17
申请号：US731873
申请日：1996-10-18
CPC分类号： C04B28/147 , A62D1/0007 , A62D1/0014 , C04B2111/00155 , C04B2111/28 , C04B2111/62 , Y02W30/94
摘要： A cementitious composition useful for water-resistant construction materials, including floor underlayments, backing boards, self-leveling floor materials, road patching materials, fiberboard, fire-proofing sprays, and fire-stopping materials includes about 20 wt. % to about 75 wt. % calcium sulfate beta-hemihydrate, about 10 wt. % to about 50 wt. % Portland cement, about 4 wt. % to about 20 wt. % silica fume and about 1 wt. % to about 50 wt. % pozzolanic aggregate. The Portland cement component may also be a blend of Portland cement with fly ash and/or ground blast slag.
摘要翻译： 用于防水建筑材料（包括地板底层，背板，自流平地板材料，道路修补材料，纤维板，防火喷雾剂和防火材料）的水泥组合物包括约20wt。 ％至约75wt。 ％硫酸钙β-半水合物，约10重量％ ％至约50wt。 ％硅酸盐水泥，约4wt。 ％至约20wt。 ％硅粉和约1wt。 ％至约50wt。 ％火山灰聚集。 波特兰水泥组分也可以是波特兰水泥与粉煤灰和/或粉碎渣的混合物。
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公开(公告)号：US4948647A
公开(公告)日：1990-08-14
申请号：US308922
申请日：1989-02-13
申请人： Edward A. Burkard
发明人： Edward A. Burkard
CPC分类号： E04C2/043 , B32B13/14 , Y10T428/232 , Y10T442/143
摘要： A backer board for use as a base to which ceramic tile is bonded for a bathtub or shower area, in which the board is made by forming a gypsum core board with fiber glass laminated composite facings, which include an inner fiber glass scrim, an outer fiber glass nonwoven matte and an acrylic film, which film is formed of an acrylic latex of a class commonly employed as an ingredient in Portland cement mortar for applying ceramic tile.
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