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1.发明公开COMPOSITE SEMIPERMEABLE MEMBRANE AND PRODUCTION THEREOF 失效可切换的VERBUNDMEMBRAN UND DEREN HERSTELLUNG。
公开(公告)号：EP0465649A1
公开(公告)日：1992-01-15
申请号：EP90902389.7
申请日：1990-01-26
CPC分类号： B01D71/56 , B01D69/125 , Y02B10/50
摘要： This invention relates to a composite semipermeable membrane of low-pressure high desalination type having an excellent chlorine resistance and a method for the production thereof. This membrane is composed of a microporous supporting membrane and an ultrathin membrane covering said supporting membrane, wherein the ultrathin membrane comprises a polyamide prepared by the polycondensation of a dicarboxylic acid halide with piperazine and ethylenediamine as the main component and a molar fraction of ethylenediamine polyamide constituents to piperazine polyamide constituents is regulated to be in the range of 0.01 to 0.25, so that the membrane has a high desalination rate, a high fresh water generation rate and a sufficient chlorine durability. Thus it can be used in a small ultrapure water generator and a household water purifier and as a reverse osmosis membrane for treating waste water or the like.
摘要翻译： 本发明涉及耐氯性优异的低压高脱盐型复合半透膜及其制造方法。 该膜由微孔支撑膜和覆盖所述支撑膜的超薄膜构成，其中超薄膜包括通过二羧酸卤化物与哌嗪和乙二胺作为主要成分的缩聚制备的聚酰胺和乙二胺聚酰胺成分的摩尔分数 到哌嗪的聚酰胺成分调节在0.01〜0.25的范围内，使得膜具有高的脱盐率，高的淡水产生速率和足够的氯耐久性。 因此，可以用于小型超纯水发生器和家用净水器以及用作处理废水等的反渗透膜。
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2.发明公开
公开(公告)号：EP0417287A1
公开(公告)日：1991-03-20
申请号：EP89910917.7
申请日：1989-09-29
发明人： HIMESHIMA, Yoshio , TANISUGI, Hideaki , WATANABE, Tetsuo , UEMURA, Tadahiro, Room 502 , KURIHARA, Masaru
摘要： The invention relates to a porous membrane having excellent durability and being useful as an ultrafiltration membrane, which substantially comprises a phenylene sulfide copolymer represented by the formula (-Ph-S-) m (-Ph-X-) n and which has a nonuniform structure wherein a dense layer or layers substantially governing the separating function of the membrane are formed on one side or both sides of the membrane and a porous layer having a larger void volume is formed in contact with said dense layer. In said formula Ph represents a phenylene group, X represents -SO₂, - or-CO-, and m and n each represents a natural number.
摘要翻译： 新型的多孔膜由通式（-Ph-S-）m（Ph-X）n（I）表示的亚苯基硫化物共聚物组成，其中pH为亚苯基; X是-SO 2或-CO-; m，n =自然数，m + n = 80-400。 多孔膜具有不均匀的结构，其中形成在膜的一侧或两侧上的一个或多个致密层提供分离功能。 多孔层具有比致密层更大的空隙体积并与致密层接触形成。 苯硫醚共聚物可以由通式 - （ - Ph-S-Ph-X-）q-（II）表示，其中q = 80和400之间的整数.X优选为-SO 2 - 。 Ph优选为对亚苯基。 致密层具有分离能力，能够抑制10wt。 ％聚乙二醇，分子量为100,000的聚乙二醇。 多孔膜的厚度为10-100微米。 整个膜的空隙体积为20-80％。 在25℃下1kg / cm2压力下，膜对纯水的渗透性为0.1m 3 / m 2。 多孔膜层压在由聚酯，聚酰胺，聚乙烯，聚丙烯或聚苯硫醚制成的织造或非织造织物上。
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公开(公告)号：EP0465649B1
公开(公告)日：1997-03-26
申请号：EP90902389.7
申请日：1990-01-26
CPC分类号： B01D71/56 , B01D69/125 , Y02B10/50
摘要： This invention relates to a composite semipermeable membrane of low-pressure high desalination type having an excellent chlorine resistance and a method for the production thereof. This membrane is composed of a microporous supporting membrane and an ultrathin membrane covering said supporting membrane, wherein the ultrathin membrane comprises a polyamide prepared by the polycondensation of a dicarboxylic acid halide with piperazine and ethylenediamine as the main component and a molar fraction of ethylenediamine polyamide constituents to piperazine polyamide constituents is regulated to be in the range of 0.01 to 0.25, so that the membrane has a high desalination rate, a high fresh water generation rate and a sufficient chlorine durability. Thus it can be used in a small ultrapure water generator and a household water purifier and as a reverse osmosis membrane for treating waste water or the like.
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公开(公告)号：EP0417287B1
公开(公告)日：1994-06-08
申请号：EP89910917.7
申请日：1989-09-29
发明人： HIMESHIMA, Yoshio , TANISUGI, Hideaki , WATANABE, Tetsuo , UEMURA, Tadahiro, Room 502 , KURIHARA, Masaru
摘要： The invention relates to a porous membrane having excellent durability and being useful as an ultrafiltration membrane, which substantially comprises a phenylene sulfide copolymer represented by the formula (-Ph-S-)m(-Ph-X-)n and which has a nonuniform structure wherein a dense layer or layers substantially governing the separating function of the membrane are formed on one side or both sides of the membrane and a porous layer having a larger void volume is formed in contact with said dense layer. In said formula Ph represents a phenylene group, X represents -SO2 - or -CO-, and m and n each represents a natural number.
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