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1. 发明授权

US4035457A Nonbiodegradable polymers 失效
标题翻译：不可生物降解的聚合物
公开(公告)号：US4035457A
公开(公告)日：1977-07-12
申请号：US573783
申请日：1975-05-01
申请人： Robert E. Kesting
发明人： Robert E. Kesting
IPC分类号： B01D71/16 , B01D71/82 , C08B3/16 , C08J5/22 , B29D27/04 , B29D7/02
CPC分类号： B01D71/18 , B01D67/0011 , C08B3/16
摘要： A new composition, cellulose acetate-chlorobutyrate pyridinium salt, which has superior biodegradation resistance and polymer membrane forming characteristics and related compositions.
摘要翻译：一种新的组合物，醋酸纤维素 - 氯代丁酸吡啶鎓盐，其具有优异的抗生物降解性和聚合物膜形成特性及相关组合物。

2. 发明授权

US3872001A Removal of heavy metal pollutants from aqueous media 失效
标题翻译：从水性介质中去除重金属污染物
公开(公告)号：US3872001A
公开(公告)日：1975-03-18
申请号：US36579273
申请日：1973-05-31
申请人： CELANESE CORP
发明人： DAVIS HOWARD J , LEE LEONARD A
IPC分类号： B01D67/00 , B01D71/18 , B01D71/82 , C02F1/28 , C02F1/62 , C02F9/00 , C02B1/18
CPC分类号： B01D67/0093 , B01D61/00 , B01D71/18 , B01D71/82 , C02F1/285 , C02F9/00 , C02F2101/20
摘要： A porous film is disclosed which is capable of removing heavy metal pollutants from aqueous media. The film is basically prepared from an acid-containing polymer which has been rendered porous or micro-porous by standard methods. Reacted with the acid groups in the polymeric film backbone is a chelate-divalent metal complex which chelate is capable of forming a complex with the heavy metal pollutants to be removed from the aqueous media.
摘要翻译：公开了能够从水介质中除去重金属污染物的多孔膜。该膜基本上由通过标准方法制成多孔或微孔的含酸聚合物制备。与聚合物膜主链中的酸基反应是螯合二价金属络合物，其螯合物能够与重金属污染物形成复合物以从水性介质中除去。

3. 发明授权

US3669954A A process for producing semipermeable membranes 失效
标题翻译：一种生产可切割膜的方法
公开(公告)号：US3669954A
公开(公告)日：1972-06-13
申请号：US3669954D
申请日：1970-05-04
申请人： US INTERIOR
发明人： SCHAEFFLER OTTO S
IPC分类号： C08B3/22 , C08L1/14 , B01D13/00 , B29H7/20
CPC分类号： C08L1/14 , B01D67/0093 , B01D71/18 , B01D2323/30 , C08B3/22
摘要： Semipermeable membranes having improved reverse osmosis properties are prepared by crosslinking cellulose acetate methacrylate membranes in an aqueous persulfate-bisulfite redox system. The resulting membranes exhibit superior long-term reverse osmosis properties and find particular utility in desalination of water.
摘要翻译：具有改善的反渗透性能的半透膜通过在过硫酸氢亚硫酸氢盐氧化还原体系中交联纤维素乙酸甲酯膜来制备。所得的膜表现出优异的长期反渗透特性，并且在脱盐水中具有特殊用途。

4. 发明授权

US3567809A Method of varying the pore diameters of fine pores in cellulose acetate film 失效
标题翻译：在纤维素乙酸酯薄膜中改变细孔的孔直径的方法
公开(公告)号：US3567809A
公开(公告)日：1971-03-02
申请号：US3567809D
申请日：1967-10-06
申请人： FUJI PHOTO FILM CO LTD
发明人： UENO WATARU , KAWAGUCHI HIDEO
IPC分类号： B29C67/20 , C08J5/18 , C08L1/12 , B29D27/04 , C08B21/06 , C08B27/42
CPC分类号： B01D71/18 , B01D67/0011 , B01D71/16 , B01D2323/20 , C08L1/12
摘要： A METHOD FOR VARYING THE PORE DIAMETER OF FINE PORES IN A CELLULOSE ACETATE FILM. THE FILM IS MADE BY CASTING A SOLUTION CONTAINING TOW CELLULOSE DERIVATIVES, EACH HAVING AN ACETATE LINKAGE, A PLASTICIZER AND WATER, AND DRYING IN TWO STAGES, FIRST AT FROM 15* TO 45*C., AND SECONDLY AT FROM 80* TO 120*C. CONTROL OF PORE SIZE IS EFFECTED BY VARYING TYPE AND AMOUNT OF PLASTICIZER WHICH IS A SINGLE OR OR MIXTURE OF GLYCERINE DERIVATIVE, GLYCOL DERIVATIVE AND ORGANIC PHOSPHATE PLASTICIZERS.

5. 发明申请

US20120175300A1 TWO-LAYER MEMBRANE 审中-公开
标题翻译：两层膜
公开(公告)号：US20120175300A1
公开(公告)日：2012-07-12
申请号：US13348620
申请日：2012-01-11
申请人： John R. Herron
发明人： John R. Herron
IPC分类号： B01D71/06 , B05D5/00 , B05D1/36 , B01D71/18
CPC分类号： B01D69/12 , B01D61/002 , B01D67/0009 , B01D69/02 , B01D71/14 , B01D71/16 , B01D71/18 , B01D2325/022 , B01D2325/04 , B01D2325/36
摘要： A method of forming a two-layered membrane by immersion precipitation including: depositing a first hydrophilic polymer solution with a formulation optimized to produce a high performance porous layer; depositing on top of the first hydrophilic polymer solution a second, different hydrophilic polymer solution optimized to produce a high performance dense layer; and forming the two-layer polymer solution into one of a forward osmosis membrane and a pressure retarded osmosis membrane by bringing the second, different hydrophilic polymer solution into contact with water to form the dense layer. A two-layered membrane formed by immersion precipitation includes: a porous layer formed from a first hydrophilic polymer solution with a formulation optimized to produce a high performance porous layer; and a dense layer on top of and supported by the porous layer, the dense layer formed from a second, different hydrophilic polymer solution optimized to produce a high performance dense layer.
摘要翻译：一种通过浸渍沉淀形成双层膜的方法，包括：沉积具有优化以制备高性能多孔层的制剂的第一亲水聚合物溶液; 在第一亲水聚合物溶液的顶部上沉积第二种不同的亲水性聚合物溶液，其优化以产生高性能致密层; 并通过使第二种不同的亲水性聚合物溶液与水接触以形成致密层，将双层聚合物溶液形成正向渗透膜和压阻渗透膜之一。通过浸渍沉淀形成的双层膜包括：由第一亲水聚合物溶液形成的多孔层，其具有优化的制剂以产生高性能多孔层; 以及由多孔层顶部并由其支撑的致密层，致密层由优化以产生高性能致密层的第二种不同的亲水性聚合物溶液形成。

6. 发明申请

US20100244306A1 ASYMMETRIC GAS SEPARATION MEMBRANES WITH SUPERIOR CAPABILITIES FOR GAS SEPARATION 审中-公开
标题翻译：具有气体分离的超级能力的不对称气体分离膜
公开(公告)号：US20100244306A1
公开(公告)日：2010-09-30
申请号：US12797220
申请日：2010-06-09
申请人： Man-Wing Tang
发明人： Man-Wing Tang
IPC分类号： B29C39/14
CPC分类号： B01D53/228 , B01D67/0011 , B01D67/0083 , B01D67/0088 , B01D71/18 , B01D71/64 , B01D71/68 , B01D2256/24 , B01D2257/504 , B01D2323/283 , B01D2325/022 , B29C39/14 , B29C41/24 , B29K2001/00 , B29K2001/12 , B29K2079/08 , B29K2081/06 , C08K5/1565 , C08K5/3415 , Y02C10/10 , Y02P20/152 , Y02P70/26
摘要： This invention relates to a method of making flat sheet asymmetric membranes, including cellulose diacetate/cellulose triacetate blended membranes, polyimide membranes, and polyimide/polyethersulfone blended membranes by formulating the polymer or the blended polymers dopes in a dual solvent mixture containing 1,3 dioxolane and a second solvent, such as N,N′-methylpyrrolidinone (NMP). The dopes are tailored to be closed to the point of phase separation with or without suitable non-solvent additives such as methanol, acetone, decane or a mixture of these non-solvents. The flat sheet asymmetric membranes are cast by the phase inversion processes using water as the coagulation bath and annealing bath. The dried membranes are coated with UV curable silicone rubber. The resulting asymmetric membranes having a skin thickness of less than 100 nm, exhibit excellent permeability and selectivity compared to the intrinsic dense film performances.
摘要翻译：本发明涉及通过在含有1,3-二氧戊环的双重溶剂混合物中配制聚合物或共混聚合物涂料来制备平板非对称膜的方法，包括纤维素二乙酸酯/三乙酸纤维素共混膜，聚酰亚胺膜和聚酰亚胺/聚醚砜共混膜和第二溶剂如N，N'-甲基吡咯烷酮（NMP）。使用或不使用合适的非溶剂添加剂如甲醇，丙酮，癸烷或这些非溶剂的混合物将掺合物定制为封闭到相分离点。通过使用水作为凝固浴和退火浴的相转化法浇铸平板不对称膜。干燥的膜用可UV固化的硅橡胶涂覆。所得到的皮肤厚度小于100nm的不对称膜与内在致密膜性能相比表现出优异的渗透性和选择性。

7. 发明授权

US5087366A Biocompatible dialysis membrane comprising a mixed polysaccharide ester 失效
标题翻译：包含混合多糖酯的生物相容性透析膜
公开(公告)号：US5087366A
公开(公告)日：1992-02-11
申请号：US453797
申请日：1989-12-20
申请人： Michael Diamantoglou , Hans Georg Tilgner
发明人： Michael Diamantoglou , Hans Georg Tilgner
IPC分类号： A61M1/16 , B01D71/08 , B01D71/18 , C08B3/16
CPC分类号： B01D71/08 , B01D71/18 , C08B3/16
摘要： A biocompatible dialysis membrane for hemodialysis in the form of flat sheets, tubular sheets or hollow filaments is disclosed. The dialysis membrane comprises a mixed polysaccharide ester of acetic acid, and/or propionic acid and/or butyric acid and has a structure represented by the formula ##STR1## wherein Cell denotes the skeleton of the polysaccharide molecule without hydroxyl groups; a, b, p, and s are numbers wherein s is a maximum degreee of substitution and the following equations are satisfied: ##EQU1## with the provision that, if a=0, then p and b must be greater than 0 and, if p or b=0, then a must be greater than 0.
摘要翻译：公开了一种用于血液透析的生物相容性透析膜，其为扁平片，管状片或中空细丝。透析膜包含乙酸和/或丙酸和/或丁酸的混合多糖酯，并具有由式“IMAGE”表示的结构，其中Cell表示无羟基的多糖分子的骨架; a，b，p和s是其中s是最大取代度并且满足以下等式的数字：a + p + b =（0.5）（s）至（0.95）（s）p + b =（0.13 ）（s）至（0.95）（s）; a =（0至0.83）（s）; b =（0〜0.9）（s）; 并且p =（0至0.9）（s），条件是如果a = 0，则p和b必须大于0，并且如果p或b = 0，则a必须大于0。

8. 发明授权

US3917777A Process for the preparation of dry semipermeable 失效
标题翻译：干燥半透膜的制备方法
公开(公告)号：US3917777A
公开(公告)日：1975-11-04
申请号：US31459972
申请日：1972-12-13
申请人： KOBE STEEL LTD
发明人： ASADA TSUNESABURO , KOMATSU FUMIAKI , TSUGE HIDEO , YANAGI CHOTA , KUWAHARA TOSHIYUKI
IPC分类号： B29D27/04 , B29D7/14
CPC分类号： B01D71/12 , B01D61/025 , B01D67/0011 , B01D71/16 , B01D71/18 , B01D71/22 , B01D2323/06
摘要： A dry semipermeable membrane, which is adapted to separate solutes from solutions by reverse osmosis methods, is prepared by a process which comprises casting a film from a casting solution containing a cellulose derivative, a first additive, and a suitable amount of an organic compound with an organic solvent as the balance of the casting solution; evaporating a portion of said organic solvent from said cast film; dipping the partially evaporated film in water to extract the remainder of said organic solvent and drying the extracted film.
摘要翻译：一种干燥半透膜，其适用于通过反渗透方法从溶液中分离溶质，其方法包括从含有纤维素衍生物，第一添加剂和适量的有机化合物的流延溶液中浇铸膜，作为浇铸溶液的余量的有机溶剂; 从所述流延膜蒸发所述有机溶剂的一部分; 将部分蒸发的膜浸入水中以萃取剩余的所述有机溶剂并干燥所提取的膜。

9. 发明授权

US3607329A Cellulose acetate butyrate semipermeable membranes and their production 失效
标题翻译：乙酸酯乙酸丁酯可切割膜及其生产
公开(公告)号：US3607329A
公开(公告)日：1971-09-21
申请号：US3607329D
申请日：1969-04-22
申请人： US INTERIOR
发明人： MANJIKIAN SEROP
IPC分类号： B29D27/04 , C08B21/06 , C08B27/42 , C08B27/44 , C08B27/58
CPC分类号： B01D71/18 , B01D67/0011 , B01D2323/12
摘要： Semipermeable membranes are produced by casting a solution consisting essentially of cellulose acetate butyrate, triethyl phosphate, a flux promoter and an organic solvent into a film, and subsequently gelling the film by immersion in water. The membranes of the invention find particular utility in separation of solutes from solutions by osmosis or reverse osmosis.

10. 发明授权

US3140256A Separation process 失效
公开(公告)号：US3140256A
公开(公告)日：1964-07-07
申请号：US68728457
申请日：1957-09-30
申请人： STANDARD OIL CO
发明人： MARTIN EUGENE C , BINNING ROBERT C , ADAMS LEON M , LEE ROBERT J
IPC分类号： B01D61/36 , C07B61/00 , C07C7/00 , C08B11/20
CPC分类号： B01D71/18 , B01D61/36

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