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公开(公告)号：US5756595A
公开(公告)日：1998-05-26
申请号：US808467
申请日：1997-03-03
IPC分类号： C08G73/10
CPC分类号： C08G73/1092
摘要： A method for the preparation of a desired molecular weight polysuccinimide by the catalytic polymerization of aspartic acid in the presence of a cyclic carbonate solvent. Polysuccinimide of relatively high weight average molecular weight and high purity can be produced in relatively high yields while employing a relatively low catalyst loading.
摘要翻译： 一种在环状碳酸酯溶剂存在下通过天冬氨酸的催化聚合制备所需分子量聚琥珀酰亚胺的方法。 相对较高的重均分子量和高纯度的聚琥珀酰亚胺可以以较高的产率生产，同时采用较低的催化剂负载量。
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公开(公告)号：US5939518A
公开(公告)日：1999-08-17
申请号：US84822
申请日：1998-05-26
IPC分类号： C08G73/10
CPC分类号： C08G73/1092
摘要： A method for the preparation of a desired molecular weight polysuccinimide by the catalytic polymerization of aspartic acid in the presence of a cyclic carbonate solvent. Polysuccinimide of relatively high weight average molecular weight and high purity can be produced in relatively high yields while employing a relatively low catalyst loading.
摘要翻译： 一种在环状碳酸酯溶剂存在下通过天冬氨酸的催化聚合制备所需分子量聚琥珀酰亚胺的方法。 相对较高的重均分子量和高纯度的聚琥珀酰亚胺可以以较高的产率生产，同时采用较低的催化剂负载量。
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3.发明授权
公开(公告)号：US5508434A
公开(公告)日：1996-04-16
申请号：US313770
申请日：1994-09-28
IPC分类号： C08G69/10 , C08G73/10 , C07D207/40 , C07D207/325 , C07D403/06
CPC分类号： C08G73/1092 , C08G69/10
摘要： Polysuccinimide of varying molecular weight has been prepared by heat polymerization of aspartic acid in the presence of a sulfur-containing dehydrating agent employing a variety of reaction mixtures and reaction conditions. Sulfur trioxide and heat decomposable sulfur trioxide precursor dehydrating agents are preferred for this purpose. The presence of an acid scavenger within the reaction mixture is desirable and leads to a relatively higher molecular weight polysuccinimide, while the absence of an acid scavenger results in a relatively lower molecular weight polysuccinimide.
摘要翻译： 通过使用各种反应混合物和反应条件的含硫脱水剂的存在下天冬氨酸的热聚合制备了不同分子量的聚琥珀酰亚胺。 为此目的，优选三氧化硫和可热分解的三氧化硫前体脱水剂。 反应混合物中存在酸清除剂是合乎需要的，并导致相对较高分子量的聚琥珀酰亚胺，而不存在酸清除剂导致相对较低分子量的聚琥珀酰亚胺。
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公开(公告)号：US5478919A
公开(公告)日：1995-12-26
申请号：US283268
申请日：1994-07-29
CPC分类号： C08G69/10 , C08G73/1092
摘要： Aspartic acid precursors such as mono and diammonium maleate, maleamic acid, ammonium maleamate, ammonium malate and mixtures of these and other precursors are copolycondensed thermally with a variety of mono, di and multifunctional monomers containing amino, hydroxyl and carboxyl functional groups. The resulting condensation copolymers and terpolymers contain succinimide units derived from aspartic acid precursors, condensed with other functional group monomers usually though amide and ester linkages. Hydrolysis of the polysuccinimide copolymers and terpolymers with alkali, alkaline earth and ammonium hydroxide produces aspartic acid copolymer and terpolymer salts.
摘要翻译： 天冬氨酸前体如马来酸单和二铵，马来酰胺酸，马来酸铵，马来酸铵，这些和其它前体的混合物与含有氨基，羟基和羧基官能团的各种单，二和多官能单体共缩聚。 所得的缩合共聚物和三元共聚物含有衍生自天冬氨酸前体的琥珀酰亚胺单元，其通常通过酰胺和酯键与其它官能团单体缩合。 聚琥珀酰亚胺共聚物和三元共聚物与碱金属，碱土金属和氢氧化铵的水解产生天冬氨酸共聚物和三元共聚物盐。
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公开(公告)号：USRE36234E
公开(公告)日：1999-06-22
申请号：US995444
申请日：1997-12-22
CPC分类号： C08G69/10 , C08G73/1092
摘要： Aspartic acid precursors such as mono and diammonium maleate, maleamic acid, ammonium maleamate, ammonium malate and mixtures of these and other precursors are copolycondensed thermally with a variety of mono, di and multifunctional monomers containing amino, hydroxyl and carboxyl functional groups. The resulting condensation copolymers and terpolymers contain succinimide units derived from aspartic acid precursors, condensed with other functional group monomers usually .�.though.!. .Iadd.through .Iaddend.amide and ester linkages. Hydrolysis of the polysuccinimide copolymers and terpolymers with alkali, alkaline earth and ammonium hydroxide produces aspartic acid copolymer and terpolymer salts.
摘要翻译： 天冬氨酸前体如马来酸单和二铵，马来酰胺酸，马来酸铵，马来酸铵，这些和其它前体的混合物与含有氨基，羟基和羧基官能团的各种单，二和多官能单体共缩聚。 所得的缩合共聚物和三元共聚物含有衍生自天冬氨酸前体的琥珀酰亚胺单元，其与通常通过酰胺和酯键的其它官能团单体缩合。 聚琥珀酰亚胺共聚物和三元共聚物与碱金属，碱土金属和氢氧化铵的水解产生天冬氨酸共聚物和三元共聚物盐。
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公开(公告)号：US5227536A
公开(公告)日：1993-07-13
申请号：US922651
申请日：1992-07-30
IPC分类号： C07B61/00 , C07C37/02 , C07C37/055 , C07C39/23
CPC分类号： C07C37/02 , C07C2102/06
摘要： A process for preparing a 3- or 4-hydroxybenzocyclobutene comprises reacting a 3- or 4-halogenzocyclobutene reactant with an alkali metal hydroxide by heating in an aqueous alcohol medium at a temperature from about 50.degree. C. to a temperature at which dimerization or oligomerization of a benzocyclobutene reactant or product is a significant side reaction, in the presence of a metal-containing catalyst, for a time sufficient to convert the halobenzocyclobutene reactant to the hydroxybenzocyclobutene product.
摘要翻译： 制备3-或4-羟基苯并环丁烯的方法包括使3-或4-卤代环丁烯反应物与碱金属氢氧化物在约50℃的温度下在含水醇介质中加热至二聚或低聚 苯并环丁烯反应物或产物是在含金属的催化剂存在下足够将卤代苯并环丁烯反应物转化为羟基苯并环丁烯产物的时间的显着副反应。
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公开(公告)号：US4900817A
公开(公告)日：1990-02-13
申请号：US200746
申请日：1988-05-31
CPC分类号： G01N27/126 , C07F7/0836 , C07F7/1864 , C07F7/30 , C09B47/045 , C09B47/073
摘要： Compounds are disclosed which comprise parallel, multiring, porphyrin-related compounds, particularly two-ring phthalocyanine compounds, which have a coordinating atom, either a metal or a metalloid, located at their center. The coordinating atoms in adjacent rings are connected by an oxygen bridge along an axial backbone disposed at right angles to the rings, and the coordinating atom and the ring on one end of the axis has a hydrophilic group attached thereto, while the coordinating atom in the ring at the other end of the axis has a hydrophobic group attached to it. Semiconducting films made from such compounds and devices made from such films, especially gas sensors, are also disclosed.
摘要翻译： 公开了包含平行，多峰，卟啉相关化合物，特别是双环酞菁化合物的化合物，其具有位于其中心的配位原子，即金属或准金属。 相邻环中的配位原子沿着与环成直角设置的轴向骨架通过氧桥连接，并且配位原子和轴的一端上的环具有连接到其上的亲水基团，而在 轴的另一端的环具有连接到其上的疏水性基团。 还公开了由这种化合物制成的半导体膜和由这种膜制成的器件，特别是气体传感器。
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公开(公告)号：US5368889A
公开(公告)日：1994-11-29
申请号：US48689
申请日：1993-04-16
申请人： David R. Johnson , Kenneth J. Stutts , Daniel A. Batzel , Virginia A. Hallfrisch , James E. Anschutz
发明人： David R. Johnson , Kenneth J. Stutts , Daniel A. Batzel , Virginia A. Hallfrisch , James E. Anschutz
CPC分类号： B01D69/125
摘要： A method of making a semipermeable composite membrane comprising a discriminating layer formed insitu by interfacial polymerization is disclosed. The method provides for removal of a water immiscible solvent for a reactant in the interfacial polymerization by physical means not requiring a phase change such as a water knife, air knife, roller, or rubber blade. Composite membranes having good flux, good salt rejection, and low levels of remaining organic solvent are obtained.
摘要翻译： 公开了一种制备半透膜复合膜的方法，其包括通过界面聚合形成的鉴别层。 该方法提供了通过不需要相变的物理手段（例如水刀，气刀，辊或橡胶叶片）去除界面聚合中的反应物的水不混溶溶剂。 获得具有良好的通量，良好的耐盐析和低水平的剩余的有机溶剂的复合膜。
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公开(公告)号：US20150090686A1
公开(公告)日：2015-04-02
申请号：US14501239
申请日：2014-09-30
IPC分类号： B65D50/04
CPC分类号： B65D50/04 , B65D21/0204 , B65D43/20 , B65D2215/02 , B65D2543/00194 , B65D2543/00296 , B65D2543/0049 , B65D2543/00546
摘要： Novel lockable safe containers for dispensing valuable, dangerous and potentially dangerous goods via a main opening that is easy for adults to open and difficult for children to open, using a finger pressure on a sliding closure with a deflectable extension operable by finger pressure to enable. The novel safe containers have many additional advantages including human factors, ergonomics, manufacturing, supply chain and distribution, warehousing, retail, tamper resistance advantages, and labeling. The slidable closure exits the main opening zone via an auxiliary opening but wholly without exiting the container in normal usage.
摘要翻译： 新型可锁定的安全容器，用于通过主开口分配有价值的，危险的和潜在危险的物品，容易使成年人打开并且难以使儿童打开，使用手指压力在具有可手指压力可操作的可偏转延伸的滑动闭合件上实现。 新型安全容器具有人为因素，人体工程学，制造，供应链和分销，仓储，零售，防篡改优势和标签等诸多优点。 可滑动的封闭件通过辅助开口离开主开口区域，但在正常使用状态下完全不离开容器。
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10.发明授权
公开(公告)号：US5658460A
公开(公告)日：1997-08-19
申请号：US646411
申请日：1996-05-07
CPC分类号： B01D67/0095 , B01D69/125
摘要： To prevent the deterioration of the flux and salt rejection characteristics of polyamide, thin-film, composite reverse osmosis membranes when subjected to relatively high temperature drying conditions, an unsubstituted inorganic ammonium cation salt of an acid is incorporated into the process of manufacture. The ammonium salt can be introduced into the process either before or after the membrane is formed by interfacial polymerization so long as it is added before the membrane is heated.
摘要翻译： 为了防止聚酰胺，薄膜，复合反渗透膜在经受相对高温干燥条件时的通量和耐盐析性的劣化，将未取代的无机铵阳离子盐引入制备方法中。 在通过界面聚合形成膜之前或之后，铵盐可以引入该方法中，只要在膜被加热之前加入即可。
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