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公开(公告)号：US4336356A
公开(公告)日：1982-06-22
申请号：US180753
申请日：1980-08-25
CPC分类号： C08C19/04 , C08F8/06 , C08F8/44 , C08G69/26 , C08F2810/20
摘要： Partially unsaturated polymers are dissolved in a two component solvent comprising a first component having a reactivity toward ozone less than carbon-carbon double bonds but more reactive than carbon-carbon single bonds and a second component being inert toward ozone. Introduction of ozone into the solution produces ozonides which are readily cleft into difunctional aliphatic species that can be converted to e.g. carboxy-terminated or multifunctional carboxy substituted aliphatic compounds. These may be used as monomeric species in various polymerization schemes as such, in preparation of polyamides, for example, or may be reduced to aldehydes or alcohols to be used in the preparation of such polymers as polyesters, polyurethanes, poly (Schiff bases), etc. The carboxylated products may also be employed as ionomers, which are useful as surfactants. Monocarboxyl terminated polyethylene having a number average molecular weight of from about 4,000 to 100,000 are provided. Poly(carboxymethyl) substituted polyethylenes, wherein from about 0.05 to 1.3 percent of the hydrogen atom or polyethylene are substituted with carboxymethyl groups, are obtained.
摘要翻译： 部分不饱和聚合物溶解在包含对臭氧反应性低于碳 - 碳双键但比碳 - 碳单键反应性更高的第一组分的第二组分和对臭氧呈惰性的第二组分的双组分溶剂中。 将臭氧引入溶液中产生臭氧化物，其易于裂解成可以转化为例如二官能的脂族物质。 羧基封端或多官能的羧基取代的脂族化合物。 这些可以在各种聚合方案中用作单体物质，例如在制备聚酰胺时，或者可以还原成醛或醇，以用于制备聚合物如聚酯，聚氨酯，聚（席夫碱）， 羧化产物也可以用作离聚物，它们可用作表面活性剂。 提供数均分子量为约4,000至100,000的单羧基封端的聚乙烯。 得到其中约0.05-1.3％的氢原子或聚乙烯被羧甲基取代的聚（羧甲基）取代的聚乙烯。
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公开(公告)号：US4024185A
公开(公告)日：1977-05-17
申请号：US529438
申请日：1974-12-04
申请人： Lester T. C. Lee
发明人： Lester T. C. Lee
CPC分类号： C08G69/26
摘要： Novel cycloaliphatic diamines have been prepared which are consisting of two unequivalent amine groups. The diamines are prepared by reduction of aromatic dinitro compounds. The polyamides made from these diamines are useful in forming fibers and films having excellent high temperature properties.
摘要翻译： 已经制备了由两个不等价的胺基组成的新的脂环族二胺。 二胺通过还原芳族二硝基化合物制备。 由这些二胺制成的聚酰胺可用于形成具有优异的高温性能的纤维和薄膜。
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公开(公告)号：US4550150A
公开(公告)日：1985-10-29
申请号：US208227
申请日：1980-11-19
IPC分类号： C07C271/12 , C08F2/00 , C08F4/00 , C09K3/00
CPC分类号： C07C271/12
摘要： Process of detecting the presence of certain gases, including certain pollutants, in small concentrations; or to cause partial polymerization of certain polyacetylene compositions for use in time/temperature history indicators or radiation dosage indicators. The process involves contacting a reactive gas, such as a nitrogen oxide, a halide or ozone, with a crystalline substituted acetylenic monomer containing at least two conjugated triple bonds and substituents having at least one atom of oxygen or nitrogen. In particular the acetylenic compound is 2,4-hexadiyne-1,6-bis(phenylurethane) crystallized from tetrahydrofuran or acetone.
摘要翻译： 以少量浓度检测某些气体（包括某些污染物）的存在过程; 或引起部分聚乙炔组合物用于时间/温度历史指标或辐射剂量指标。 该方法包括将反应性气体如氮氧化物，卤化物或臭氧与含有至少两个共轭三键的结晶取代的炔属单体和具有至少一个氧原子或氮原子的取代基接触。 特别地，炔属化合物是由四氢呋喃或丙酮结晶的2,4-己二炔-1,6-双（苯基氨基甲酸酯）。
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公开(公告)号：US4057481A
公开(公告)日：1977-11-08
申请号：US689305
申请日：1976-05-24
申请人： Lester T. C. Lee , Gerald J. Dege , Kang-Jen Liu
发明人： Lester T. C. Lee , Gerald J. Dege , Kang-Jen Liu
CPC分类号： B01D61/445 , C08J5/2218 , C08J5/2243 , C08J5/2287 , C08J2353/02
摘要： Improved novel single film bipolar membranes having an ion selectivity above 80% in an electrolyte medium of about one mole, are prepared containing a relatively high amount, i.e. at least 15% of an insoluble cross-linked aromatic polymer. Before the styrenated sheet is chemically functionalized, the film surface is specifically treated, i.e. cleaned to make it more receptive to functional groups, so that the cationic-exchange groups and anion-exchange groups can be introduced homogeneously from each side of the surface-cleaned film, and a single-film bipolar membrane of superior durability, stability, and quality control results.
摘要翻译： 在约1摩尔的电解质介质中具有高于80％离子选择性的改进的新型单膜双极膜被制备成含有相当高的量，即至少15％的不溶性交联芳族聚合物。 在苯乙烯化片材进行化学官能化之前，对膜表面进行特殊处理，即进行清洁以使其更容易接受官能团，从而阳离子交换基团和阴离子交换基团可以从表面清洁的每一侧均匀地引入 薄膜和具有优异的耐久性，稳定性和质量控制结果的单膜双极膜。
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公开(公告)号：US3956112A
公开(公告)日：1976-05-11
申请号：US558189
申请日：1975-03-13
申请人： Lester T. C. Lee , Win-Sow Ho , Kang-Jen Liu
发明人： Lester T. C. Lee , Win-Sow Ho , Kang-Jen Liu
IPC分类号： B01D11/04 , B01D61/24 , C01B7/07 , C01B7/09 , C01B7/19 , C01B17/90 , C01B21/46 , C01B25/46 , B01D13/00 , B01D13/04
CPC分类号： B01D63/02 , B01D11/0415 , B01D61/246 , C01B17/90 , C01B21/46 , C01B25/462 , C01B7/0737 , C01B7/096 , C01B7/195
摘要： A membrane solvent extraction system is utilized to separate two substantially immiscible liquids and extract a solute through a solvent swollen membrane from one solvent liquid phase to the extracting solvent liquid without direct contact between the liquid phases. The membrane extraction method has advantages over conventional solvent extraction and may be applied as the mechanism in separation, purification, pollutant removal and recovery processes.
摘要翻译： 使用膜溶剂萃取系统分离两种基本上不混溶的液体，并通过溶剂溶胀膜从溶剂液相萃取溶剂至萃取溶剂液体，而液相之间不会直接接触。 膜提取方法优于常规溶剂萃取，可用作分离，纯化，污染物去除和回收过程中的机理。
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6.发明授权
公开(公告)号：US4355116A
公开(公告)日：1982-10-19
申请号：US220568
申请日：1980-12-29
申请人： Lester T. C. Lee , Kang-Jen Liu
发明人： Lester T. C. Lee , Kang-Jen Liu
IPC分类号： C08F8/32
CPC分类号： C08F8/32 , C08F2800/20 , C08F2810/20
摘要： Stable single film bipolar membranes of prolonged life and improved performance particularly for use in electrodialysis water splitting process, are prepared by introducing a more stable interface in the membrane structure. After the cationic exchange groups are preformed on an insoluble cross-linked aromatic polymeric matrix, the dissociable anionic exchange groups may be introduced more intimately chemically bonded in position by using multi-functional compounds containing mixed tertiary, secondary and primary amine groups, so that the resulting interface is comparatively more stable, and is less likely to be neutralized, therefore, attaining longer life-time and a higher level of performance.
摘要翻译： 通过在膜结构中引入更稳定的界面来制备长寿命稳定的单膜双极膜，特别是用于电渗析水分离过程的改进性能。 在阳离子交换基团在不溶性交联的芳族聚合物基质上预成型之后，可以通过使用含有混合的叔胺，仲胺和伯胺基团的多官能化合物，将可离解的阴离子交换基团引入更紧密地化学键合，使得 所得到的界面比较稳定，并且不太可能被中和，因此获得更长的使用寿命和更高的性能水平。
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公开(公告)号：US4116889A
公开(公告)日：1978-09-26
申请号：US715765
申请日：1976-08-19
IPC分类号： C08J7/04 , B01D61/44 , B01D61/46 , B01D71/28 , B01D71/82 , B01J47/12 , C01B7/03 , C01D1/04 , C08J5/22 , C08J5/24 , C25D21/22
CPC分类号： C01D1/04 , B01J47/12 , C01B7/035 , C08J5/2287 , C08J2327/04 , C08J2327/12 , Y10T428/3154 , Y10T428/31928 , Y10T428/31935
摘要： Stable bipolar membranes of high permselectivity and low potential drop are prepared using either an anion or cation preformed first layer upon which a second layer or coating of an ion exchange resin of the opposite charge carried in a matrix polymer is applied. The second layer may be suitably applied such as by casting as a slurry of the ion exchange resin in a solution or by laminating a layer comprising a dispersion of the resin in a solid or fused polymer. Optionally, the surface of the first layer may be treated to increase the resin concentration and/or bonding at the interface, such as by sanding, etching, etc.
摘要翻译： 具有高选择性和低电位降的稳定的双极膜使用阴离子或阳离子预制的第一层来制备，其上施加相反电荷的载体的离子交换树脂的第二层或涂层在基质聚合物中。 可以适当地施加第二层，例如通过作为离子交换树脂的浆料浇铸在溶液中或通过将包含树脂的分散体的层层压在固体或熔融聚合物中。 任选地，可以处理第一层的表面以增加界面处的树脂浓度和/或粘合，例如通过砂磨，蚀刻等。
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公开(公告)号：US3948823A
公开(公告)日：1976-04-06
申请号：US276993
申请日：1972-08-01
申请人： Lester T. C. Lee , Kang-Jen Liu
发明人： Lester T. C. Lee , Kang-Jen Liu
摘要： Novel cross-linked interpolymer membranes of substantially improved efficiency and durability are prepared from a co-mixture of a hydrophilic polymer of [1, .omega.-alkylene(2,6-diketopiperazine)-1,4-dicarboxamide] and a hydrophobic polymer such as polyvinylidene fluoride, by dissolving these polymers in a suitable solvent, forming films of suitable thickness from the solution and thereafter preferably crosslinking the dissolved mixture.
摘要翻译： 由[1，ω-亚烷基（2,6-二酮哌嗪）-1,4-二甲酰胺]的亲水性聚合物与疏水性聚合物的共混混合物制备了具有显着提高的效率和耐久性的新型交联互聚物膜， 通过将这些聚合物溶解在合适的溶剂中，从溶液中形成适当厚度的膜，然后优选将溶解的混合物交联。
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公开(公告)号：US4253900A
公开(公告)日：1981-03-03
申请号：US772786
申请日：1977-02-28
CPC分类号： B01D61/445 , C09J5/00 , Y10T428/254
摘要： Superior bipolar membranes are prepared having high performances. The improvement is achieved by (1) using high performance component ion exchange membranes, and (2) controlling the method of joining two component membranes into a bipolar membrane. The method of preparation of high performance component ion exchange membranes is also disclosed.
摘要翻译： 制备出高性能的高级双极膜。 通过（1）使用高性能组分离子交换膜，和（2）控制将双组分膜连接到双极膜的方法来实现改进。 还公开了制备高性能组分离子交换膜的方法。
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公开(公告)号：US4083768A
公开(公告)日：1978-04-11
申请号：US689304
申请日：1976-05-24
申请人： Lester T. C. Lee , Kang-Jen Liu
发明人： Lester T. C. Lee , Kang-Jen Liu
CPC分类号： C08J5/2243 , C08J2353/02
摘要： Novel polyelectrolyte membranes of substantially improved efficiency and durability are prepared from a preswollen film containing a relatively high amount of an insoluble cross-linked aromatic polymer. By preswelling the insoluble matrix under controlled conditions preferably to an equilibrium stage, the dissociable ion-exchange groups may be introduced more uniformly onto the aromatic nuclei of the matrix to a desired depth of the film. Controlled penetration of functional groups is important in preparing high performance cationic, anionic membranes as well as bipolar membranes. The membranes so prepared have low electrical resistance, improved current efficiency, undergo negligible degradation and with excellent durability.
摘要翻译： 从含有相对较多量的不溶性交联芳族聚合物的预乳液膜制备基本提高的效率和耐久性的新型聚电解质膜。 通过将受控条件下的不溶性基质预先优化至平衡阶段，可以将离解的离子交换基团更均匀地引入到基质的芳香核上至膜的所需深度。 官能团的控制渗透在制备高性能阳离子，阴离子膜以及双极膜方面是重要的。 如此制备的膜具有低电阻，改善的电流效率，经历可忽略的降解和优异的耐久性。
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