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公开(公告)号：US5959016A
公开(公告)日：1999-09-28
申请号：US904087
申请日：1997-07-31
IPC分类号： C08L101/08 , C08K5/00 , C09D5/00 , C09D5/02 , C09D157/00 , C08K3/00
CPC分类号： C09D5/008 , C08K5/0091
摘要： A water-based polymer composition containing a polyvalent metal complex and a polymer having pendant strong cationic groups and weak acid salt groups forms fast dry-to-the-touch coatings that are resistant to water and many organic solvents. These coatings can be removed with ammonia-containing solvents.
摘要翻译： 含有多价金属络合物和具有强阳离子基团和弱酸盐基团的聚合物的水基聚合物组合物形成耐水和许多有机溶剂的快速干 - 接触涂层。 这些涂层可以用含氨溶剂除去。
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公开(公告)号：US5910532A
公开(公告)日：1999-06-08
申请号：US865536
申请日：1997-05-29
IPC分类号： A61K8/72 , A61K8/31 , A61K8/34 , A61K8/36 , A61K8/37 , A61K8/38 , A61K8/39 , A61K8/40 , A61K8/42 , A61K8/46 , A61K8/49 , A61K8/81 , A61Q17/00 , C08J3/00 , C08L101/00 , C08L101/02 , C09D4/06 , C09D5/00 , C09D7/00 , C09D133/00 , C09D133/06 , C09D157/06 , C09D201/02
CPC分类号： A61K8/8152 , A61K8/8158 , A61Q17/00 , C09D133/062 , C09D5/008 , C09D7/001
摘要： Substantially permanent or removable coatings can be prepared from a composition comprising a polymer dissolved or dispersed in a multicomponent medium that contains water, a low-boiling polar organic solvent, and a high-boiling point solvent. The polymer is characterized by containing structural units formed from the polymerization of a polymerizable strong cationic monomer, a polymerizable acid monomer, and optionally a non-interfering monomer. The composition forms a dust-free and tack-free film that can be removed by a combination of water and an organic solvent. The film can also be made resistant to organic solvents as well as acids and bases with the addition of a crosslinking agent to the composition.
摘要翻译： 可以从包含溶解或分散在含有水，低沸点极性有机溶剂和高沸点溶剂的多组分培养基中的聚合物的组合物制备基本上永久或可移除的涂层。 聚合物的特征在于含有由可聚合的强阳离子单体，可聚合酸单体和任选的非干扰单体的聚合形成的结构单元。 该组合物形成无尘和无粘性的膜，其可通过水和有机溶剂的组合除去。 该膜还可以通过向组合物中加入交联剂而制成对有机溶剂以及酸和碱的耐受性。
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公开(公告)号：US06359110B1
公开(公告)日：2002-03-19
申请号：US09596772
申请日：2000-06-19
IPC分类号： C08G610
CPC分类号： C08J3/07 , C09D201/02
摘要： The present invention relates to a quick set composition and a method for preparing the composition. The composition comprises an aqueous sol of a polymer having a backbone that contains pendant cationic groups and pendant acid groups. The sol is prepared by forming a solution of a polymer that contains pendant cationic groups and pendant acid groups in an aqueous-based solvent that contains water and a suitable organic solvent and removing a sufficient amount of the organic solvent from the solution to form a composition characterized by being reversibly dissolvable and reconstitutable by addition and removal of a suitable organic solvent. The composition of the present invention provides quick-set films that can be prepared in the absence additional surface active agents and with a substantial absence of organic solvents.
摘要翻译： 本发明涉及快速固化组合物及其制备方法。 组合物包含具有主链的聚合物的水性溶胶，所述主链含有阳离子侧基和侧基酸基。 通过在含有水和合适的有机溶剂的水性溶剂中形成含有阳离子侧基和侧基的基团的聚合物溶液来制备溶胶，并从溶液中除去足够量的有机溶剂以形成组合物 其特征在于通过添加和除去合适的有机溶剂是可逆地溶解和重新构成的。 本发明的组合物提供可在不存在另外的表面活性剂和基本上不存在有机溶剂的情况下制备的快速凝固膜。
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公开(公告)号：US06191211B1
公开(公告)日：2001-02-20
申请号：US09151933
申请日：1998-09-11
IPC分类号： C08L3900
CPC分类号： C08J3/07 , C09D201/02
摘要： The present invention relates to a quick set composition and a method for preparing the composition. The composition comprises an aqueous sol of a polymer having a backbone that contains pendant cationic groups and pendant acid groups. The sol is prepared by forming a solution of a polymer that contains pendant cationic groups and pendant acid groups in an aqueous-based solvent that contains water and a suitable organic solvent and removing a sufficient amount of the organic solvent from the solution to form a composition characterized by being reversibly dissolvable and reconstitutable by addition and removal of a suitable organic solvent. The composition of the present invention provides quick-set films that can be prepared in the absence additional surface active agents and with a substantial absence of organic solvents.
摘要翻译： 本发明涉及快速固化组合物及其制备方法。 组合物包含具有主链的聚合物的水性溶胶，所述主链含有阳离子侧基和侧基酸基。 通过在含有水和合适的有机溶剂的水性溶剂中形成含有阳离子侧基和侧基的基团的聚合物溶液来制备溶胶，并从溶液中除去足够量的有机溶剂以形成组合物 其特征在于通过添加和除去合适的有机溶剂是可逆地溶解和重新构成的。 本发明的组合物提供可在不存在另外的表面活性剂和基本上不存在有机溶剂的情况下制备的快速凝固膜。
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公开(公告)号：US5882810A
公开(公告)日：1999-03-16
申请号：US813773
申请日：1997-03-07
申请人： Robert D. Mussell , Timothy J. Rehg
发明人： Robert D. Mussell , Timothy J. Rehg
CPC分类号： H01M4/8657 , H01M4/8642 , H01M4/8668 , H01M4/926 , H01M8/1004 , H01M2300/0082 , H01M4/8605 , H01M8/0228 , H01M8/04291
摘要： Described is a membrane electrode assembly having an ion exchange membrane, and at least two active layers positioned on the same side of the membrane; wherein the active layers containing catalytically-active particles and an ionomer; the average equivalent weights of the ionomers in the layers differ by at least 50; and the active layer positioned closest to the membrane contains the ionomer with the lower average equivalent weight. This membrane electrode assembly, when utilized in a fuel cell, provides a relatively high voltage at a given current density and gas flow rate.
摘要翻译： 描述了具有离子交换膜和位于膜的同一侧上的至少两个活性层的膜电极组件; 其中所述活性层含有催化活性颗粒和离聚物; 层中离聚物的平均当量重量至少为50; 最靠近膜的活性层含有平均当量较低的离聚物。 当在燃料电池中使用时，该膜电极组件在给定的电流密度和气体流速下提供相对较高的电压。
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公开(公告)号：US5702755A
公开(公告)日：1997-12-30
申请号：US554066
申请日：1995-11-06
申请人： Robert D. Mussell
发明人： Robert D. Mussell
CPC分类号： H01M4/8828 , H01M4/8605 , H01M4/8882 , H01M4/926 , H01M8/1004 , H01M2300/0082 , H01M8/04291
摘要： A composition comprising (a) catalytically-active particles, (b) an organic compound having a pKa of at least about 18 and a basicity parameter, .beta., of less than 0.66, and (c) a polymeric binder. Also described is a process for preparing a membrane/electrode assembly, which comprises the sequential steps of (i) applying a layer of the composition of the invention to a solid polymer electrolyte, a carbon fiber paper, or a release substrate; (ii) heating the composition under conditions sufficient to volatilize at least 95 percent of component (b); and (iii) positioning the composition in contact with the solid polymer electrolyte, if the composition was not applied directly to the solid polymer electrolyte, forming the membrane/electrode assembly thereby. It has been discovered that the composition and process of the invention, when used to prepare a membrane electrode assembly (MEA) having a solid polymer electrolyte, provides an MEA which provides a relatively high voltage at a given current density and gas flow rate in a fuel cell.
摘要翻译： 一种组合物，其包含（a）催化活性颗粒，（b）具有至少约18的pKa和碱度参数β的小于0.66的有机化合物，和（c）聚合物粘合剂。 还描述了制备膜/电极组件的方法，其包括以下顺序步骤：（i）将本发明的组合物层施加到固体聚合物电解质，碳纤维纸或剥离基材上; （ii）在足以挥发至少95％的组分（b）的条件下加热组合物; 和（iii）将组合物定位为与固体聚合物电解质接触，如果该组合物没有直接施加到固体聚合物电解质上，则由此形成膜/电极组合物。 已经发现，当用于制备具有固体聚合物电解质的膜电极组件（MEA）时，本发明的组合物和方法提供了MEA，其以给定的电流密度和气体流速提供相对高的电压 燃料电池。
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公开(公告)号：US5620807A
公开(公告)日：1997-04-15
申请号：US522482
申请日：1995-08-31
CPC分类号： H01M4/926 , H01M8/1004 , H01M2300/0082
摘要： An electrochemical fuel cell having a membrane electrode assembly and a layer of an electrically conductive porous material adjacent thereto which has at least two portions with different mean pore sizes, wherein a first portion of the layer adjacent to the membrane electrode assembly has a porosity no greater than a second portion of the layer adjacent to the opposite side of the layer; the second portion has a porosity of at least about 82 percent; and the second portion has an mean pore size which is at least about 10 microns and at least ten times greater than the mean pore size of the first portion.
摘要翻译： 一种具有膜电极组件和与其相邻的导电多孔材料层的电化学燃料电池，其具有至少两个具有不同平均孔径的部分，其中与膜电极组件相邻的层的第一部分的孔隙率不大 比层的与相对侧相邻的层的第二部分; 第二部分具有至少约82％的孔隙率; 并且第二部分具有比第一部分的平均孔径大至少约10微米且至少十倍的平均孔径。
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公开(公告)号：US5425872A
公开(公告)日：1995-06-20
申请号：US275579
申请日：1994-07-15
CPC分类号： C07F17/00 , B01J37/348 , C08F10/00 , C08F2420/02 , C08F4/65908 , C08F4/65912 , C08F4/6592 , Y10S526/943
摘要： Group 4 metal complexes useful as addition polymerization catalysts are prepared by electrolysis of cyclopentadienyl metal complexes under inert electrolysis conditions.
摘要翻译： 可用作加成聚合催化剂的第4族金属络合物通过在惰性电解条件下电解环戊二烯基金属络合物来制备。
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公开(公告)号：US5869416A
公开(公告)日：1999-02-09
申请号：US904258
申请日：1997-07-31
申请人： Robert D. Mussell
发明人： Robert D. Mussell
CPC分类号： H01M4/8828 , H01M4/8605 , H01M4/8882 , H01M4/926 , H01M8/1004 , H01M2300/0082 , H01M8/04291
摘要： A composition comprising (a) catalytically-active particles, (b) an organic compound having a pKa of at least about 18 and a basicity parameter, .beta., of less than 0.66, and (c) a polymeric binder. Also described is a process for preparing a membrane/electrode assembly, which comprises the sequential steps of (i) applying a layer of the composition of the invention to a solid polymer electrolyte, a carbon fiber paper, or a release substrate; (ii) heating the composition under conditions sufficient to volatilize at least 95 percent of component (b); and (iii) positioning the composition in contact with the solid polymer electrolyte, if the composition was not applied directly to the solid polymer electrolyte, forming the membrane/electrode assembly thereby. It has been discovered that the composition and process of the invention, when used to prepare a membrane electrode assembly (MEA) having a solid polymer electrolyte, provides an MEA which provides a relatively high voltage at a given current density and gas flow rate in a fuel cell.
摘要翻译： 一种组合物，其包含（a）催化活性颗粒，（b）具有至少约18的pKa和碱度参数β的小于0.66的有机化合物，和（c）聚合物粘合剂。 还描述了制备膜/电极组件的方法，其包括以下顺序步骤：（i）将本发明的组合物层施加到固体聚合物电解质，碳纤维纸或剥离基材上; （ii）在足以挥发至少95％的组分（b）的条件下加热组合物; 和（iii）将组合物定位为与固体聚合物电解质接触，如果该组合物没有直接施加到固体聚合物电解质上，则由此形成膜/电极组合物。 已经发现，当用于制备具有固体聚合物电解质的膜电极组件（MEA）时，本发明的组合物和方法提供了MEA，其以给定电流密度和气体流速提供相对高的电压 燃料电池。
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公开(公告)号：US5625087A
公开(公告)日：1997-04-29
申请号：US304314
申请日：1994-09-12
IPC分类号： C07F7/02 , C07F5/02 , C07F7/08 , C07F7/30 , C07F17/00 , C08F4/60 , C08F4/659 , C08F4/6592 , C08F10/00 , C25B3/02 , C07F7/04
CPC分类号： C25B3/02 , C07F17/00 , C07F5/027 , C07F7/0809 , C07F7/082 , C08F10/00 , C08F4/65908 , C08F4/6592
摘要： Catalyst systems useful in addition polymerization reactions comprising a Group 4 metal complex and a silylium salt activating cocatalyst are prepared by contacting the metal complex with a silylium salt of a compatible, non-coordinating anion, optionally the silylium salt is prepared by electrochemical oxidation and splitting of the corresponding disilane compound.
摘要翻译： 通过使金属络合物与相容的非配位阴离子的甲硅烷鎓盐接触来制备可用于包含第4族金属络合物和甲硅烷鎓盐活化助催化剂的加成聚合反应中的催化剂体系，任选地，通过电化学氧化和裂解制备甲硅烷基盐 的相应的乙硅烷化合物。
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