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公开(公告)号：US4385084A
公开(公告)日：1983-05-24
申请号：US151061
申请日：1980-05-19
摘要： A process is described for preparing a selective permeable membrane comprising coating a solution consisting essentially of(i) a polyimide polymer consisting essentially of a repeating unit of the formula (I): ##STR1## wherein R.sup.1 is a divalent organic group, (ii) a swelling agent selected from the group of compounds represented by formula (II) and (III):R.sup.3 O----CH.sub.2 CHR.sup.2 O).sub.n R.sup.4 (II)R.sup.5 ----OH).sub.m (III) wherein R.sup.2, R.sup.3 and R.sup.4, which may be the same or different, can be hydrogen, a methyl group, or an ethyl group, and when R.sup.2 is hydrogen, n can be an integer of from 1 to 5, and when R.sup.2 is a methyl or ethyl group, n can be an integer of from 1 to 3, R.sup.5 is a saturated aliphatic hydrocarbon group containing 3 to 6 carbon atoms, and m can be an integer of from 2 to 6, and(iii) an organic solvent,on a supporting substrate, and immersing the solution coated supporting substrate in a coagulating liquid which does not dissolve the polyimide polymer and is miscible with the organic solvent, to coagulate the polyimide polymer and form the membrane. Membranes prepared by the process are also described.
摘要翻译： 描述了一种用于制备选择性渗透膜的方法，其包括涂覆基本上由（i）基本上由式（I）的重复单元组成的聚酰亚胺聚合物的溶液：其中R 1是二价有机基团， （ii）选自式（II）和（III）表示的化合物的溶剂：R3O-CH2CHR2O）nR4（II）R5-OH）m（III）其中R2，R3和R4可以 相同或不同，可以是氢，甲基或乙基，当R 2是氢时，n可以是1至5的整数，当R 2是甲基或乙基时，n可以是 1〜3的整数，R5为碳原子数为3〜6的饱和脂肪族烃基，m为2〜6的整数，（iii）有机溶剂，在支持基材上，浸渍溶液 在不溶解聚酰亚胺聚合物并与有机溶剂混溶的凝固液中的涂布的支撑基材凝固 聚酰亚胺聚合物形成膜。 还描述了通过该方法制备的膜。
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2.发明授权公开(公告)号：US06203900B1
公开(公告)日：2001-03-20
申请号：US08885848
申请日：1997-06-30
申请人： Takeshi Saika , Shuji Senda , Yoshitaka Kazuse , Akio Iwama , Tetsuji Sugii , Masao Nasu , Katsuji Tani , Nobuyasu Yamaguchi
发明人： Takeshi Saika , Shuji Senda , Yoshitaka Kazuse , Akio Iwama , Tetsuji Sugii , Masao Nasu , Katsuji Tani , Nobuyasu Yamaguchi
IPC分类号： B32B1504
CPC分类号： C12Q1/04 , G01N33/569 , G01N33/56916 , Y10T428/28 , Y10T428/283 , Y10T428/2891
摘要： A pressure sensitive adhesive sheet for the detection of microorganisms, which comprises a laminate of an adhesive layer mainly composed of a water-soluble polymer and a water-permeable membrane which does not allow passage of the microorganisms; a pressure sensitive adhesive sheet for the detection of microorganisms, wherein the surface of the adhesive layer has a contact angle with water of not more than 90°; and a method for detecting a microorganism, which comprises bringing the surface of an adhesive layer of a pressure sensitive adhesive sheet into contact with the surface of a test object, and then bringing the surface of the adhesive layer into contact with water, said adhesive layer or water containing a chromogenic reagent. The use of the laminate makes it possible to leave only stained microorganisms on the water-permeable membrane and to precisely observe the color developed by the microorganisms. The method of the present invention enables real-time monitoring without culture of microorganisms, and is not limited to the detection of viable cells alone. Inasmuch as a contact of the pressure sensitive adhesive sheet with a test face results in accumulation of microorganisms, the manipulation is simple. In addition, by properly determining a chromogenic reagent, a specific microorganism alone can be detected and counted, so that it can be applied to environmental investigation in the medical field, food industry field and the like.
摘要翻译： 一种用于检测微生物的压敏粘合片，其包括主要由水溶性聚合物组成的粘合剂层和不允许微生物通过的水渗透膜的层压体; 用于检测微生物的压敏粘合片，其中所述粘合剂层的表面与水的接触角不大于90°; 以及检测微生物的方法，其特征在于，使粘合剂层的粘合剂层的表面与试验体的表面接触，然后使粘合剂层的表面与水接触，所述粘合层 或含有显色试剂的水。 使用层压体可以在透水膜上仅留下染色的微生物，并精确地观察由微生物显色的颜色。 本发明的方法能够在不培养微生物的情况下进行实时监测，并不限于单独检测活细胞。 由于压敏粘合片与测试面的接触导致微生物的积累，操作简单。 此外，通过适当地测定显色试剂，可以检测和计数单独的特定微生物，从而可以应用于医疗领域，食品工业领域等的环境调查。
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公开(公告)号：US4358378A
公开(公告)日：1982-11-09
申请号：US249587
申请日：1981-03-31
申请人： Akio Iwama , Hiroshi Iwahori , Yoshitaka Kazuse
发明人： Akio Iwama , Hiroshi Iwahori , Yoshitaka Kazuse
摘要： A selective permeable membrane and a process for preparing the membrane. The process comprises applying to a supporting substrate a membrane forming solution prepared by dissolving in an organic solvent a polyimide polymer comprising principally a repeating unit represented by the general formula (I): ##STR1## wherein R.sup.1 represents a divalent organic group, and a liquid swelling agent having a coagulation value with respect to the polyimide polymer of about 50 to about 200 and a boiling point of about 50.degree. C. to about 120.degree. C. under atmospheric pressure, evaporating at least a part of the swelling agent, and coagulating the polyimide polymer by contacting the polyimide polymer with a coagulating solvent which does not dissolve the polyimide polymer but is compatible with the organic solvent and the swelling agent.
摘要翻译： 选择性渗透膜和制备膜的方法。 该方法包括向支撑基底施加通过将有机溶剂溶解在主要由通式（I）表示的重复单元的聚酰亚胺聚合物制备的成膜溶液：其中R1表示二价有机基团， 和在大气压下相对于聚酰亚胺聚合物具有约50至约200的凝固值和约50℃至约120℃的沸点的液体溶胀剂，蒸发至少一部分溶胀剂 并且通过使聚酰亚胺聚合物与不溶解聚酰亚胺聚合物但与有机溶剂和溶胀剂相容的凝结溶剂接触来使聚酰亚胺聚合物凝结。
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公开(公告)号：US4787981A
公开(公告)日：1988-11-29
申请号：US928585
申请日：1986-11-10
申请人： Seiichi Tanahashi , Kaoru Nagano , Masaaki Kasai , Fujihiko Tsubone , Akio Iwama , Yoshitaka Kazuse , Kentaro Tasaka , Yutaka Isooka
发明人： Seiichi Tanahashi , Kaoru Nagano , Masaaki Kasai , Fujihiko Tsubone , Akio Iwama , Yoshitaka Kazuse , Kentaro Tasaka , Yutaka Isooka
CPC分类号： C11B3/001
摘要： A process for purification of crude glyceride oil compositions which comprises diluting a crude glyceride oil composition containing gum material and wax as main components of impurities with an organic solvent, bringing the diluted crude glyceride oil composition into contact with a semipermeable membrane composed of polyimide consisting essentially of a repeating unit represented by the general formula: ##STR1## wherein R.sup.1 represents a divalent organic group, under pressure to obtain a semipermeable membrane permeable liquid in which the gum material in the glyceride oil after removal of said organic solvent is 100 ppm or less, carrying out bleaching of the glyceride oil obtained from said semipermeable membrane permeable liquid with at least one kind of an adsorbent selected from the group consisting of clay, activated clay, activated carbon and bone black, and then carrying out deodorizing to obtain a purified glyceride oil.
摘要翻译： 一种粗甘油酯油组合物的纯化方法，其包括用有机溶剂稀释含有胶质材料和蜡作为杂质的主要成分的粗甘油酯油组合物，使稀释的粗甘油酯油组合物与由本质上组成的聚酰亚胺组成的半透膜接触 其中R1表示二价有机基团，其中R 1表示二价有机基团，得到半透膜可渗透液体，其中除去所述有机溶剂后甘油酯油中的胶料为100ppm以下 用至少一种选自粘土，活性粘土，活性炭和骨黑的吸附剂进行从所述半透膜渗透液中得到的甘油酯油的漂白，然后进行除臭以获得纯化的甘油酯 油。
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公开(公告)号：US4590098A
公开(公告)日：1986-05-20
申请号：US663748
申请日：1984-10-23
申请人： Yoshitaka Kazuse , Akio Iwama , Shinichi Chikura
发明人： Yoshitaka Kazuse , Akio Iwama , Shinichi Chikura
CPC分类号： B01D69/125 , B01D71/64 , B01D71/70 , Y10T428/24992 , Y10T428/31663 , Y10T428/31721
摘要： A process for producing a composite membrane is disclosed. The composite membrane is produced by bringing an organic solution of a specific cross-linkable silicone resin into contact with the surface of a dense layer of an anisotropic membrane made of a polyimide resin. The composite membrane is useful for separation of an organic solution containing a relatively small solute, liquid/liquid separation by pervaporation method, and concentration and separation of gases.
摘要翻译： 公开了一种复合膜的制造方法。 通过将特定的可交联的有机硅树脂的有机溶液与由聚酰亚胺树脂制成的各向异性膜的致密层的表面接触来制造复合膜。 复合膜可用于分离含有较小溶质的有机溶液，通过渗透蒸发法进行液/液分离，以及浓缩和分离气体。
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公开(公告)号：US4618534A
公开(公告)日：1986-10-21
申请号：US663750
申请日：1984-10-23
申请人： Akio Iwama , Kentaro Tasaka , Yoshitaka Kazuse
发明人： Akio Iwama , Kentaro Tasaka , Yoshitaka Kazuse
CPC分类号： B01D71/70 , B01D69/125 , B01D71/64 , Y10T428/249978 , Y10T428/249979 , Y10T428/249981
摘要： A composite membrane and a process for producing the same are described. This composite membrane comprises a polyimide resin anisotropic membrane and a cross-linked silicone resin thin film formed on the anisotropic membrane, the anisotropic membrane comprising a dense surface layer and a porous layer continuously connected thereto and the polyimide resin consisting essentially of a repeating unit of the formula: ##STR1## wherein A and R.sup.1 are the same as defined hereinbefore. This composite membrane is useful for separation of organic solutions containing relatively small solutes of molecular weight of the order of 10 to 1,000 liquid/liquid separation, and concentration and separation of gases.
摘要翻译： 对复合膜及其制造方法进行说明。 该复合膜包括聚酰亚胺树脂各向异性膜和形成在各向异性膜上的交联硅树脂薄膜，各向异性膜包含致密表面层和与其连续连接的多孔层，聚酰亚胺树脂基本上由重复单元组成 式：其中A和R 1与前述定义相同。 该复合膜可用于分离含有分子量为10至1,000液/液分离的相对较小溶质以及气体的浓缩和分离的有机溶液。
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公开(公告)号：US4414157A
公开(公告)日：1983-11-08
申请号：US335493
申请日：1981-12-30
申请人： Akio Iwama , Yoshitaka Kazuse
发明人： Akio Iwama , Yoshitaka Kazuse
CPC分类号： C11B3/008 , B01D61/142
摘要： A process for the purification of crude glyceride oil compositions which comprises bringing a miscella of a crude glyceride oil composition containing therein a glyceride oil and phospholipid into contact with a capillary semipermeable membrane to concentrate the miscella to a predetermined level, and thereafter bringing the preliminarily concentrated miscella into contact with a tubular semipermeable membrane to concentrate the miscella to a higher level.
摘要翻译： 一种粗甘油酯油组合物的纯化方法，其特征在于，将含有甘油酯油和磷脂的粗甘油酯油组合物的混合物与毛细管半透膜接触，将所述杂多糖浓缩至预定水平，然后将其预先浓缩 杂交细胞与管状半透膜接触以将杂种集中到更高的水平。
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公开(公告)号：US4410568A
公开(公告)日：1983-10-18
申请号：US195038
申请日：1980-10-08
申请人： Akio Iwama , Yasuo Kihara , Masao Abe , Yoshitaka Kazuse
发明人： Akio Iwama , Yasuo Kihara , Masao Abe , Yoshitaka Kazuse
摘要： A process for preparing a selective permeable membrane having self-supporting property, which comprises coating on a supporting substrate a dope comprising a polyimide polymer consisting essentially of a repeating unit of the formula: ##STR1## wherein R is a divalent organic group, an inorganic salt and an organic solvent, as a dope solvent, which dissolves a mixture of the polymer and the inorganic salt to form a homogeneous system, to prepare a dope coated supporting substrate, heat treating the substrate at a temperature which does not cause the organic solvent in the dope to boil, and then coagulating the substrate.
摘要翻译： 一种制备具有自支撑性质的选择性渗透膜的方法，其包括在支撑基底上涂布包含基本上由下式重复单元组成的聚酰亚胺聚合物的涂料：其中R是二价有机基团，无机 盐和有机溶剂作为掺杂溶剂，其溶解聚合物和无机盐的混合物以形成均匀的体系，以制备涂布涂覆的支撑基材，在不引起有机溶剂的温度下热处理基材 在搅拌下煮沸，然后凝结底物。
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