公开(公告)号：US20100298594A1

公开(公告)日：2010-11-25

申请号：US12468585

申请日：2009-05-19

申请人： Larry E. Brammer, JR. ,  Barbara E. Fair ,  Cheng-Sung Huang ,  Linh Quach ,  Peter E. Reed ,  Leonard M. Ver Vers

发明人： Larry E. Brammer, JR. ,  Barbara E. Fair ,  Cheng-Sung Huang ,  Linh Quach ,  Peter E. Reed ,  Leonard M. Ver Vers

IPC分类号： C07C67/03

CPC分类号： C07C213/06 ,  C07C219/08

摘要： A method and apparatus for preparing a N,N-dialkylaminoalkyl acrytate in a continuous transesterification reaction. The reaction involves adding alkyl acrylates such as methacrylate or ethacrylate to a reboiler mechanism and efficiently removing alcohol co-products. Because the reaction is continuous, the alkyl acrylates can be added as needed to increase output, decrease output, or fine-tune the reaction dynamics. An entrainer is used to form a volatile azeotrope which contains both alcohol and entrainer and which is easily removed from the reboiler mechanism. This method reduces the amount of entrainer needed per unit of alkyl acrylate used and eliminates any need to purify the end product from entrainer contamination of the resulting N,N-dialkylaminoalkyl acrylate product.

摘要翻译： 在连续酯交换反应中制备N，N-二烷基氨基烷基丙烯酸酯的方法和装置。 该反应包括将丙烯酸烷基酯如甲基丙烯酸酯或乙基丙烯酸酯加入到再沸器机理中并有效地除去醇共同产物。 因为反应是连续的，所以可以根据需要添加丙烯酸烷基酯以增加产量，降低产量或微调反应动力学。 使用夹带剂形成含有醇和夹带剂并易于从再沸器机构中除去的挥发性共沸物。 该方法减少了每单位使用的丙烯酸烷基酯所需的夹带剂量，并且消除了任何需要净化最终产物对所得的N，N-二烷基氨基烷基丙烯酸酯产物的夹带剂污染。

公开(公告)号：US07829738B1

公开(公告)日：2010-11-09

申请号：US12468585

申请日：2009-05-19

申请人： Larry E. Brammer, Jr. ,  Barbara E. Fair ,  Cheng-Sung Huang ,  Linh Quach ,  Peter E. Reed ,  Leonard M. Ver Vers

发明人： Larry E. Brammer, Jr. ,  Barbara E. Fair ,  Cheng-Sung Huang ,  Linh Quach ,  Peter E. Reed ,  Leonard M. Ver Vers

IPC分类号： C07C69/52

CPC分类号： C07C213/06 ,  C07C219/08

摘要： A method and apparatus for preparing a N,N-dialkylaminoalkyl acrylate in a continuous transesterification reaction. The reaction involves adding alkyl acrylates such as methacrylate or ethacrylate to a reboiler mechanism and efficiently removing alcohol co-products. Because the reaction is continuous, the alkyl acrylates can be added as needed to increase output, decrease output, or fine-tune the reaction dynamics. An entrainer is used to form a volatile azeotrope which contains both alcohol and entrainer and which is easily removed from the reboiler mechanism. This method reduces the amount of entrainer needed per unit of alkyl acrylate used and eliminates any need to purify the end product from entrainer contamination of the resulting N,N-dialkylaminoalkyl acrylate product.

摘要翻译： 在连续酯交换反应中制备丙烯酸N，N-二烷基氨基烷基酯的方法和装置。 该反应包括将丙烯酸烷基酯如甲基丙烯酸酯或乙基丙烯酸酯加入到再沸器机理中并有效地除去醇共同产物。 因为反应是连续的，所以可以根据需要添加丙烯酸烷基酯以增加产量，降低产量或微调反应动力学。 使用夹带剂形成含有醇和夹带剂并易于从再沸器机构中除去的挥发性共沸物。 该方法减少了每单位使用的丙烯酸烷基酯所需的夹带剂量，并且消除了任何需要净化最终产物对所得的N，N-二烷基氨基烷基丙烯酸酯产物的夹带剂污染。

公开(公告)号：US20110178327A1

公开(公告)日：2011-07-21

申请号：US12691159

申请日：2010-01-21

申请人： Barbara E. Fair ,  Peter E. Reed ,  Leonard M. Ver Vers ,  Larry E. Brammer, JR. ,  Charles J. Holada ,  Cheng-Sung Huang ,  Kailas B. Sawant

发明人： Barbara E. Fair ,  Peter E. Reed ,  Leonard M. Ver Vers ,  Larry E. Brammer, JR. ,  Charles J. Holada ,  Cheng-Sung Huang ,  Kailas B. Sawant

IPC分类号： C07C227/00

CPC分类号： C07C213/08 ,  C07C219/08

摘要： The invention provides a method of continuously producing high quality quaternized N,N-dialkylaminoethyl (meth)acrylates (DMAEA.MCQ) that has a long shelf life and which is stable in water. The method involves placing starting materials into a continuously stirred tank reactor in the presence of less than 6% water. This low amount of water causes two liquid phases to form and prevents unwanted side reactions. The denser liquid phase contains DMAEA.MCQ and the lighter phase contains the starting materials. Liquid from the denser phase is removed from a position where little of the lighter phase has been mixed in. The removed liquid then has any last traces of the starting materials reacted into DMAEA.MCQ and strips away any starting materials with a gas flow. The resulting liquid is high purity DMAEA.MCQ. Water can then safely be added to ease in the transport and use of the produced DMAEA.MCQ.

摘要翻译： 本发明提供了一种连续生产高效季铵化N（N-二烷基氨基乙基（甲基）丙烯酸酯（DMAEA.MCQ））的方法，其具有长的保质期，并且在水中稳定。 该方法包括在少于6％的水的存在下将原料放入连续搅拌的罐式反应器中。 这种少量的水导致形成两个液相并防止不期望的副反应。 密度较高的液相含有DMAEA.MCQ，较浅的相含有原料。 来自较稠相的液体从少量较轻相混合的位置被除去。然后，除去的液体具有反应成DMAEA.MCQ的起始材料的任何最后痕迹，并用气流剥离任何起始材料。 所得液体为高纯度DMAEA.MCQ。 然后可以安全地加入水，以便于运输和使用生产的DMAEA.MCQ。

公开(公告)号：US08247597B2

公开(公告)日：2012-08-21

申请号：US12691159

申请日：2010-01-21

申请人： Barbara E. Fair ,  Peter E. Reed ,  Leonard M. Ver Vers ,  Larry E. Brammer, Jr. ,  Charles J. Holada ,  Cheng-Sung Huang ,  Kailas B. Sawant

发明人： Barbara E. Fair ,  Peter E. Reed ,  Leonard M. Ver Vers ,  Larry E. Brammer, Jr. ,  Charles J. Holada ,  Cheng-Sung Huang ,  Kailas B. Sawant

IPC分类号： C07C69/52

CPC分类号： C07C213/08 ,  C07C219/08

摘要： The invention provides a method of continuously producing high quality quaternized N,N-dialkylaminoethyl (meth)acrylates (DMAEA.MCQ) that has a long shelf life and which is stable in water. The method involves placing starting materials into a continuously stirred tank reactor in the presence of less than 6% water. This low amount of water causes two liquid phases to form and prevents unwanted side reactions. The denser liquid phase contains DMAEA.MCQ and the lighter phase contains the starting materials. Liquid from the denser phase is removed from a position where little of the lighter phase has been mixed in. The removed liquid then has any last traces of the starting materials reacted into DMAEA.MCQ and strips away any starting materials with a gas flow. The resulting liquid is high purity DMAEA.MCQ. Water can then safely be added to ease in the transport and use of the produced DMAEA.MCQ.

摘要翻译： 本发明提供了一种连续生产高效季铵化N（N-二烷基氨基乙基（甲基）丙烯酸酯（DMAEA.MCQ））的方法，其具有长的保质期，并且在水中稳定。 该方法包括在少于6％的水的存在下将原料放入连续搅拌的罐式反应器中。 这种少量的水导致形成两个液相并防止不期望的副反应。 密度较高的液相含有DMAEA.MCQ，较浅的相含有原料。 来自较稠相的液体从少量较轻相混合的位置被除去。然后，除去的液体具有反应成DMAEA.MCQ的起始材料的任何最后痕迹，并用气流剥离任何起始材料。 所得液体为高纯度DMAEA.MCQ。 然后可以安全地加入水，以便于运输和使用生产的DMAEA.MCQ。

公开(公告)号：US06372089B1

公开(公告)日：2002-04-16

申请号：US09504319

申请日：2000-02-14

申请人： Bruce A. Keiser ,  Maureen B. Nunn ,  Cheng-Sung Huang ,  Dennis I. MacDonald

发明人： Bruce A. Keiser ,  Maureen B. Nunn ,  Cheng-Sung Huang ,  Dennis I. MacDonald

IPC分类号： D21H1768

CPC分类号： C01B33/1435 ,  C01B33/143 ,  D21H17/29 ,  D21H17/68 ,  D21H21/10

摘要： Disclosed are stable, aqueous colloidal silicas having surface area of greater than 700 m2/g and S-values of from 20-50. These colloidal silicas do not require treatment with surface treatment agents such as aluminum to achieve stability. These colloidal silica aquasols can be produced and stored at concentrations of greater than 7 percent by weight SiO2 solids, and even as high as 15 percent by weight solids or higher, and remain stable at room temperature for at least 30 days compared to art-known silica aquasols. These colloidal silica sols demonstrate advantageously improved performance over art-known colloidal silica sols in applications such as in drainage and retention in papermaking processes. Also disclosed are processes for making aqueous colloidal silicas of the invention and the use of such colloidal silicas in papermaking processes.

摘要翻译： 公开了表面积大于700m 2 / g且S值为20-50的稳定的水性胶体二氧化硅。 这些胶体二氧化硅不需要用表面处理剂如铝处理以达到稳定性。 这些胶体二氧化硅水溶胶可以以大于7重量％的SiO 2固体，甚至高达15重量％固体或更高的浓度生产和储存，并且在室温下保持稳定至少30天，与本领域已知的 二氧化硅水溶胶。 这些胶体二氧化硅溶胶在本领域已知的胶体二氧化硅溶胶的应用中，例如在造纸方法中的排水和保留方面，显示出有利地提高的性能。还公开了制备本发明的水性胶体二氧化硅的方法以及这种胶体二氧化硅在造纸方法中的用途。

公开(公告)号：US6103839A

公开(公告)日：2000-08-15

申请号：US75684

申请日：1998-05-11

申请人： Mayur Patel ,  Cheng-Sung Huang ,  Robert W. Reese, Jr. ,  Jeffrey R. Cramm ,  Paul J. Harris

发明人： Mayur Patel ,  Cheng-Sung Huang ,  Robert W. Reese, Jr. ,  Jeffrey R. Cramm ,  Paul J. Harris

IPC分类号： C08F2/00 ,  C08F2/04 ,  C08F2/10 ,  C08F220/06 ,  C08F220/56

CPC分类号： C08F2/10 ,  B01J2219/182

摘要： A continuous free radical polymerization process for the preparation of water-soluble copolymers from water-soluble monomers for further processing to dry polymers is disclosed. The process allows efficient polymerization of the monomers in aqueous solution in the presence of a free radical catalyst through backmixing. Water-soluble polymers with molecular weights of from about 3,000-30,000,000 and preferably from about 500,000-10,000,000 are obtained utilizing this process.

摘要翻译： 公开了用于从水溶性单体制备水溶性共聚物以进一步加工成干燥聚合物的连续自由基聚合方法。 该方法允许单体在水溶液中在自由基催化剂存在下通过回混进行有效的聚合。 使用该方法获得分子量为约3,000-30,000,000，优选约500,000-10,000,000的水溶性聚合物。

公开(公告)号：US06372806B1

公开(公告)日：2002-04-16

申请号：US09504320

申请日：2000-02-14

申请人： Bruce A. Keiser ,  Maureen B. Nunn ,  Cheng-Sung Huang ,  Dennis L. MacDonald

发明人： Bruce A. Keiser ,  Maureen B. Nunn ,  Cheng-Sung Huang ,  Dennis L. MacDonald

IPC分类号： C01B33141

CPC分类号： C01B33/1435 ,  C01B33/143 ,  D21H17/29 ,  D21H17/68 ,  D21H21/10

摘要： Disclosed are stable, aqueous colloidal silicas having surface area of greater than 700 m2/g and S-values of from 20-50. These colloidal silicas do not require treatment with surface treatment agents such as aluminum to achieve stability. These colloidal silica aquasols can be produced and stored at concentrations of greater than 7 percent by weight SiO2 solids, and even as high as 15 percent by weight solids or higher, and remain stable at room temperature for at least 30 days compared to art-known silica aquasols. These colloidal silica sols demonstrate advantageously improved performance over art-known colloidal silica sots in applications such as in drainage and retention in papermaking processes. Also disclosed are processes for making aqueous colloidal silicas of the invention and the use of such colloidal silicas in papermaking processes.

摘要翻译： 公开了表面积大于700m 2 / g且S值为20-50的稳定的水性胶体二氧化硅。 这些胶体二氧化硅不需要用表面处理剂如铝处理以达到稳定性。 这些胶体二氧化硅水溶胶可以以大于7重量％的SiO 2固体，甚至高达15重量％固体或更高的浓度生产和储存，并且在室温下保持稳定至少30天，与本领域已知的 二氧化硅水溶胶。 这些胶体二氧化硅溶胶在诸如在造纸过程中的排水和保留等应用中证明有利地改进了本领域已知的胶态二氧化硅沉淀物的性能。 还公开了制备本发明的水性胶体二氧化硅的方法以及这种胶体二氧化硅在造纸方法中的用途。

公开(公告)号：US20120228346A1

公开(公告)日：2012-09-13

申请号：US13045134

申请日：2011-03-10

申请人： Cheng-Sung Huang

发明人： Cheng-Sung Huang

IPC分类号： A45F5/00

CPC分类号： A45F5/00 ,  A45C2011/003 ,  A45F2200/0525

摘要： A handheld accessory for tablet computers is disclosed, which comprises: a retaining component, configured with an accommodation space, that is formed inside the retaining component, and at least two claws, that are to be used for fixedly holding on to the periphery of a tablet computer; a rotary component, disposed inside the accommodation space of the retaining component while allowing the same to rotation clockwisely and counterclockwisely inside the accommodation space; and two movable brackets, mounted on the rotary component by the use of a plurality of fixing elements while allowing the two movable brackets to sway in a vertical direction and in a horizontal direction on the rotary component.

摘要翻译： 公开了一种用于平板计算机的手持式附件，其包括：保持部件，其构造成具有容纳空间，形成在保持部件内部;以及至少两个爪，其用于固定地保持在一个 平板电脑; 旋转部件，其设置在保持部件的容纳空间的内部，同时允许其在容纳空间内顺时针和逆时针旋转; 以及两个可移动支架，其通过使用多个固定元件安装在旋转部件上，同时允许两个可移动支架在旋转部件上沿垂直方向和水平方向摆动。

公开(公告)号：US06410428B1

公开(公告)日：2002-06-25

申请号：US09677745

申请日：2000-10-03

申请人： Wen-Hou Chiang ,  Cheng-Sung Huang

发明人： Wen-Hou Chiang ,  Cheng-Sung Huang

IPC分类号： H01L2144

CPC分类号： H01L21/32053 ,  H01L21/28017 ,  H01L21/28052 ,  H01L21/3185

摘要： A method of forming a non-oxidized WSix layer on a semiconductor wafer, including the following steps. A semiconductor wafer having a silicon substrate is provided within a CVD tool. A WSix layer is formed over the silicon substrate. An SiN layer is formed upon the WSix layer in absence of O2; whereby the WSix layer is non-oxidized.

摘要翻译： 一种在半导体晶片上形成未氧化的WSix层的方法，包括以下步骤。 具有硅衬底的半导体晶片设置在CVD工具内。 在硅衬底上形成WSix层。 在不存在O 2的情况下，在WSix层上形成SiN层; 由此WSix层未被氧化。

公开(公告)号：US06486216B1

公开(公告)日：2002-11-26

申请号：US09604335

申请日：2000-06-27

申请人： Bruce A. Keiser ,  Maureen B. Nunn ,  Cheng-Sung Huang ,  Dennis L. MacDonald

发明人： Bruce A. Keiser ,  Maureen B. Nunn ,  Cheng-Sung Huang ,  Dennis L. MacDonald

IPC分类号： C01B33141

CPC分类号： C01B33/1435 ,  C01B33/143 ,  D21H17/29 ,  D21H17/68 ,  D21H21/10

摘要： A stable aquasol containing colloidal silica having a surface area of from about 700 m2/g to about 1100 m2/g, and an S-value of from about 20 to about 50; wherein the colloidal silica is not surface treated; wherein the molar ratio of SiO2/Na2O in the colloidal silica is greater than about 13.0:1 and is less than about 17.0:1; and wherein the aquasols have a percent by weight SiO2 solids level of from about 7.00 percent to about 16.80 percent is described and claimed.

摘要翻译： 一种稳定的含有胶体二氧化硅的水溶胶，其表面积为约700m 2 / g至约1100m 2 / g，S值为约20至约50; 其中所述胶体二氧化硅未进行表面处理; 其中所述胶体二氧化硅中SiO 2 / Na 2 O的摩尔比大于约13.0:1且小于约17.0:1; 并且其中所述水溶胶具有约7.00重量％至约16.80重量％的SiO 2固体含量的百分比。