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1. 发明申请

US20060280899A1 Method of making a gypsum slurry with modifiers and dispersants 审中-公开
公开(公告)号：US20060280899A1
公开(公告)日：2006-12-14
申请号：US11152323
申请日：2005-06-14
申请人： Qingxia Liu , David Blackburn , Michael Shake , Brian Randall , John Wilson , Dennis Lettkeman
发明人： Qingxia Liu , David Blackburn , Michael Shake , Brian Randall , John Wilson , Dennis Lettkeman
IPC分类号： C04B28/14 , C04B11/00 , B32B1/04
CPC分类号： C04B28/145 , C04B28/26 , C04B2111/0062 , C04B2111/60 , Y10T428/232 , C04B12/04 , C04B20/0048 , C04B22/064 , C04B22/10 , C04B22/16 , C04B24/2647 , C04B24/38 , C04B40/0028 , C04B2103/12 , C04B2103/22 , C04B2103/67 , C04B14/06 , C04B22/143
摘要： In a method of making a gypsum slurry, a polycarboxylate dispersant, a modifier and a hydraulic material comprising stucco are selected for use in the slurry. These components are then combined with water to form a slurry, where the modifier is added to the slurry prior to formation of a slurry phase by the water, the stucco and the dispersant. The modifier has been shown to be less effective when added after the dispersant and stucco have been contacted in an aqueous slurry. In a preferred embodiment, an amount of stucco is obtained and the modifier and dispersant are selected. A predissolved solution of a dispersant and modifier is prepared in water to form a solution prior to the addition of the stucco. After mixing the solution, the stucco is added to form the slurry. Optionally, the slurry is then shaped into a product and allowed to set.

2. 发明申请

US20060278129A1 Effective use of dispersants in wallboard containing foam 失效
公开(公告)号：US20060278129A1
公开(公告)日：2006-12-14
申请号：US11450122
申请日：2006-06-09
申请人： Qingxia Liu , Michael Shake , David Blackburn , Stewart Hinshaw
发明人： Qingxia Liu , Michael Shake , David Blackburn , Stewart Hinshaw
IPC分类号： C04B28/14 , C04B11/00 , C04B24/08 , C04B20/00 , C04B16/08
CPC分类号： C04B38/106 , C04B28/14 , C04B28/145 , C04B38/10 , C04B2111/0062 , C04B7/02 , C04B14/06 , C04B22/064 , C04B22/10 , C04B22/16 , C04B2103/408 , C04B24/226 , C04B24/2647 , C04B40/0028
摘要： Effective use of dispersants in wallboard containing foam results from a method where stucco is mixed with a first dispersant and a first quantity of water to form a gypsum slurry. A soap is blended with a second dispersant and a second quantity of water to make a foam. Subsequently, the foam is combined with the slurry. Choice of different first and second dispersants and their relative amounts allows control of the size distribution of the foam bubbles in the slurry and the resulting voids in the gypsum core. Use of the same dispersant in both the mixer and the foam water provides a boost in efficacy of the dispersant.

3. 发明申请

US20080000392A1 Foamed slurry and building panel made therefrom 有权
标题翻译：发泡浆料和由其制成的建筑面板
公开(公告)号：US20080000392A1
公开(公告)日：2008-01-03
申请号：US11893759
申请日：2007-08-17
申请人： David Blackburn , Runhai Lu , Sharon Tracy , Qingxia Liu , James Wittbold , Bruce Petersen , Alfred Li , John Fall , Michael Shake , Chris Lee
发明人： David Blackburn , Runhai Lu , Sharon Tracy , Qingxia Liu , James Wittbold , Bruce Petersen , Alfred Li , John Fall , Michael Shake , Chris Lee
IPC分类号： C04B28/14 , C04B16/08 , C04B2/00
CPC分类号： C04B24/2647 , C04B24/165 , C04B28/14 , C04B28/145 , C04B2103/408 , C04B2111/0062 , C04B38/00 , C04B2103/0099 , C04B24/2658 , C04B7/02 , C04B14/04 , C04B22/064 , C04B22/10 , C04B24/10 , C04B24/38 , C04B24/42 , C04B2103/12 , C04B2103/22 , C04B2103/48 , C04B2103/65 , C04B2103/67 , C04B7/323 , C04B22/143 , C04B38/10
摘要： A gypsum slurry is described that includes water, a hydraulic component comprising at least 50% calcined gypsum by weight based on the dry weight of the hydraulic component, foam, a defoamer and a polycarboxylate dispersant. In some embodiments of the invention, the defoamer is combined with the dispersant prior to being added to the gypsum slurry. The defoamer and dispersant can be added as a physical mixture, wherein the defoamer is attached onto the dispersant polymer, or a combination thereof. In some embodiments, a gypsum building panel is made from the gypsum slurry.
摘要翻译：描述了一种石膏浆料，其包括水，基于水硬组分的干重，泡沫，消泡剂和聚羧酸盐分散剂，包含至少50重量％煅烧石膏的水硬组分。在本发明的一些实施方案中，消泡剂在加入石膏浆料之前与分散剂组合。可以将消泡剂和分散剂作为物理混合物加入，其中消泡剂附着在分散剂聚合物上，或其组合。在一些实施例中，石膏建筑面板由石膏浆制成。

4. 发明申请

US20060278135A1 Method of making a gypsum slurry with modifiers and dispersants 有权
公开(公告)号：US20060278135A1
公开(公告)日：2006-12-14
申请号：US11450086
申请日：2006-06-09
申请人： Qingxia Liu , David Blackburn , Michael Shake , Brian Randall , John Wilson , Dennis Lettkeman
发明人： Qingxia Liu , David Blackburn , Michael Shake , Brian Randall , John Wilson , Dennis Lettkeman
IPC分类号： C04B28/14 , C04B11/00
CPC分类号： C04B28/145 , C04B28/26 , C04B2111/0062 , C04B2111/60 , Y10T428/232 , C04B12/04 , C04B20/0048 , C04B22/064 , C04B22/10 , C04B22/16 , C04B24/2647 , C04B24/38 , C04B40/0028 , C04B2103/12 , C04B2103/22 , C04B2103/67 , C04B14/06 , C04B22/143
摘要： In a method of making a gypsum slurry, a polycarboxylate dispersant, a modifier and a hydraulic material comprising stucco are selected for use in the slurry. These components are then combined with water to form a slurry, where the modifier is added to the slurry prior to formation of a slurry phase by the water, the stucco and the dispersant. The modifier has been shown to be less effective when added after the dispersant and stucco have been contacted in an aqueous slurry. In a preferred embodiment, an amount of stucco is obtained and the modifier and dispersant are selected. A predissolved solution of a dispersant and modifier is prepared in water to form a solution prior to the addition of the stucco. After mixing the solution, the stucco is added to form the slurry. Optionally, the slurry is then shaped into a product and allowed to set.

5. 发明申请

US20060278130A1 Gypsum products utilizing a two-repeating unit dispersant and a method for making them 有权
公开(公告)号：US20060278130A1
公开(公告)日：2006-12-14
申请号：US11449924
申请日：2006-06-09
申请人： Qingxia Liu , Michael Shake , David Blackburn , John Wilson , Brian Randall , Dennis Lettkeman
发明人： Qingxia Liu , Michael Shake , David Blackburn , John Wilson , Brian Randall , Dennis Lettkeman
IPC分类号： C04B28/14 , C04B16/08 , C04B20/00
CPC分类号： C04B28/145 , C04B2111/0062 , Y10T442/665 , C04B14/06 , C04B22/064 , C04B22/10 , C04B22/16 , C04B24/10 , C04B24/2647 , C04B24/38 , C04B24/42 , C04B38/10 , C04B2103/12 , C04B2103/22 , C04B2103/67 , C04B22/143 , C04B24/163
摘要： A gypsum slurry includes water, a hydraulic component including stucco and a polycarboxylate dispersant. The dispersant has two repeating units wherein the first repeating unit is an olefinic unsaturated mono-carboxylic acid repeating unit or an ester or salt, and the second repeating unit is a vinyl or allyl group bound to a polyether by an ether linkage. The slurry can be made into a gypsum panel.

6. 发明申请

US20080009566A1 Gypsum products utilizing a two-repeating unit dispersant and a method for making them 有权
标题翻译：采用双重重复单元分散剂的石膏产品及其制备方法
公开(公告)号：US20080009566A1
公开(公告)日：2008-01-10
申请号：US11893791
申请日：2007-08-17
申请人： David Blackburn , Michael Shake , Qingxia Liu
发明人： David Blackburn , Michael Shake , Qingxia Liu
IPC分类号： C08K3/30 , C04B24/26
CPC分类号： C04B28/14 , C04B24/165 , C04B24/2647 , C04B28/145 , C04B2103/408 , C04B2111/0062 , Y10T442/665 , C04B38/00 , C04B2103/0099 , C04B24/2658 , C04B7/02 , C04B14/04 , C04B22/064 , C04B22/10 , C04B24/10 , C04B24/38 , C04B24/42 , C04B2103/12 , C04B2103/22 , C04B2103/48 , C04B2103/65 , C04B2103/67 , C04B7/323 , C04B22/143 , C04B38/10
摘要： A gypsum slurry includes water, a hydraulic component including stucco and a polycarboxylate dispersant. The dispersant has two repeating units wherein the first repeating unit is an olefinic unsaturated mono-carboxylic acid repeating unit or an ester or salt, and the second repeating unit is a vinyl or allyl group bound to a polyether by an ether linkage. The slurry can be made into a gypsum panel.
摘要翻译：石膏浆料包括水，包含灰泥的水硬成分和聚羧酸酯分散剂。分散剂具有两个重复单元，其中第一重复单元是烯属不饱和单羧酸重复单元或酯或盐，第二重复单元是通过醚键与聚醚结合的乙烯基或烯丙基。浆料可以制成石膏板。

7. 发明申请

US20060280898A1 Modifiers for gypsum slurries and method of using them 审中-公开
公开(公告)号：US20060280898A1
公开(公告)日：2006-12-14
申请号：US11152317
申请日：2005-06-14
申请人： Dennis Lettkeman , Michael Shake , Qingxia Liu , John Wilson , Brian Randall , David Blackburn
发明人： Dennis Lettkeman , Michael Shake , Qingxia Liu , John Wilson , Brian Randall , David Blackburn
IPC分类号： C04B28/14 , C04B11/00 , B32B1/04
CPC分类号： C04B28/14 , Y10T428/232 , C04B14/04 , C04B22/064 , C04B22/10 , C04B22/16 , C04B24/003 , C04B24/2641 , C04B2103/408
摘要： An improved gypsum slurry that includes water, calcium sulfate hemihydrate, a polycarboxylate dispersant and a modifier. The modifier is chemically configured to improve the efficacy of the polycarboxylate dispersant. Preferred modifiers include cement, lime, slaked lime, soda ash, carbonates, silicates and phosphates.

8. 发明申请

US20060278134A1 Modifiers for gypsum slurries and method of using them 有权
公开(公告)号：US20060278134A1
公开(公告)日：2006-12-14
申请号：US11450068
申请日：2006-06-09
申请人： Dennis Lettkeman , Michael Shake , Qingxia Liu , John Wilson , Brian Randall , David Blackburn
发明人： Dennis Lettkeman , Michael Shake , Qingxia Liu , John Wilson , Brian Randall , David Blackburn
IPC分类号： C04B28/14 , C04B11/00
CPC分类号： C04B28/14 , Y10T428/232 , C04B14/04 , C04B22/064 , C04B22/10 , C04B22/16 , C04B24/003 , C04B24/2641 , C04B2103/408
摘要： An improved gypsum slurry that includes water, calcium sulfate hemihydrate, a polycarboxylate dispersant and a modifier. The modifier is chemically configured to improve the efficacy of the polycarboxylate dispersant. Preferred modifiers include cement, lime, slaked lime, soda ash, carbonates, silicates and phosphates.

9. 发明授权

US4334652A Expandible devices for internally gripping cores or the like 失效
标题翻译：用于内部夹芯的可扩展装置等
公开(公告)号：US4334652A
公开(公告)日：1982-06-15
申请号：US91857
申请日：1979-11-06
申请人： David Blackburn
发明人： David Blackburn
IPC分类号： B65H75/24 , F16C13/04
CPC分类号： B65H75/246 , F16C13/04 , Y10T279/1079 , Y10T279/1087
摘要： An expandible device for internally gripping a core carrying a web of material has jaw segments forming an outer cylinder surrounding a body member which may be solid or hollow. Balls are arranged in recesses around the exterior of the body member and the jaw segments have inner grooves which receive the balls. The grooves are specially shaped to taper in depth and co-operate with the disposition of the balls so that part rotation of a core supported on the jaw segments will cause the grooves of these jaw segments to progressively run over the balls, thereby to cause the jaw segments to rise and expand outwardly from the body member into frictional gripping contact with the interior of the core.
摘要翻译：用于内部夹持承载材料纤维网的芯的可扩展装置具有形成围绕主体构件的可以是实心的或中空的外部圆筒的钳口段。球体布置在主体构件的外部周围的凹部中，并且钳口段具有容纳球的内槽。凹槽特别成型为深度渐缩并与球的配置配合，使得支撑在夹爪部分上的芯部的部分旋转将使得这些夹爪部分的凹槽逐渐地越过滚珠，从而导致钳口段从主体构件向外升起并向外扩展成与芯的内部摩擦夹紧接触。

10. 发明申请

US20070044687A1 Modified landplaster as a wallboard filler 审中-公开
公开(公告)号：US20070044687A1
公开(公告)日：2007-03-01
申请号：US11217039
申请日：2005-08-31
申请人： David Blackburn , Qingxia Liu , Michael Shake
发明人： David Blackburn , Qingxia Liu , Michael Shake
IPC分类号： C04B28/14 , C04B28/08
CPC分类号： C04B28/145 , C04B20/1066 , C04B20/107 , C04B2111/0062 , Y10T428/2993 , C04B14/365 , C04B24/2647
摘要： A gypsum slurry includes calcium sulfate hemihydrate, water and calcium sulfate dihydrate is coated with a hydrophilic, dispersible coating. The coating is less soluble than the calcium sulfate hemihydrate to delay exposure of the landplaster to the remainder of the slurry, preventing premature crystallization and the early stiffening that accompanies it. Another embodiment is a gypsum slurry that includes calcium sulfate hemihydrate, a polycarboxylate dispersant, water and coated calcium sulfate dihydrate. In this case, the hydrophilic, dispersible coating is selected to serve as a modifier to enhance the ability of the dispersant to fluidize the gypsum slurry.

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