CN103998118A - 具有可相容增强物的中空纤维膜 - Google Patents
具有可相容增强物的中空纤维膜 Download PDFInfo
- Publication number
- CN103998118A CN103998118A CN201280062275.7A CN201280062275A CN103998118A CN 103998118 A CN103998118 A CN 103998118A CN 201280062275 A CN201280062275 A CN 201280062275A CN 103998118 A CN103998118 A CN 103998118A
- Authority
- CN
- China
- Prior art keywords
- silk
- polymer
- coating
- bundle
- membranous wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 32
- 239000000835 fiber Substances 0.000 title claims description 25
- 230000002787 reinforcement Effects 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 24
- 239000011248 coating agent Substances 0.000 claims description 58
- 238000000576 coating method Methods 0.000 claims description 58
- 229920000642 polymer Polymers 0.000 claims description 32
- 238000007766 curtain coating Methods 0.000 claims description 29
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 19
- 239000002033 PVDF binder Substances 0.000 claims description 18
- 230000002708 enhancing effect Effects 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 6
- 241000108463 Hygrophila <snail> Species 0.000 claims description 5
- 238000007334 copolymerization reaction Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 230000004927 fusion Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000005266 casting Methods 0.000 abstract 4
- 239000012510 hollow fiber Substances 0.000 abstract 2
- 239000010408 film Substances 0.000 description 36
- 239000011162 core material Substances 0.000 description 13
- 230000008676 import Effects 0.000 description 10
- 238000005452 bending Methods 0.000 description 6
- 235000012489 doughnuts Nutrition 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000005728 strengthening Methods 0.000 description 4
- 230000001112 coagulating effect Effects 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 238000001471 micro-filtration Methods 0.000 description 3
- 238000000108 ultra-filtration Methods 0.000 description 3
- 238000009941 weaving Methods 0.000 description 3
- 229920002955 Art silk Polymers 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920012266 Poly(ether sulfone) PES Polymers 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005594 polymer fiber Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
- B01D69/082—Hollow fibre membranes characterised by the cross-sectional shape of the fibre
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
- B01D69/085—Details relating to the spinneret
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
- B01D69/087—Details relating to the spinning process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
- B01D71/34—Polyvinylidene fluoride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/05—Filamentary, e.g. strands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/42—Details of membrane preparation apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/40—Fibre reinforced membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
本发明公开一种制造增强中空纤维膜的方法,该方法包括在拉动一个或多个纱丝或束丝穿过流延头的同时使膜涂料流过流延头。丝例如通过迫使纱或束围绕流延头中的弯曲部或者穿过流延头中的狭窄间隙而在流延头中分散开。丝适于粘合至膜涂料或膜壁。增强中空纤维膜包括由膜壁单独包绕并且粘合至该膜壁的多根丝。
Description
技术领域
本发明的技术领域是中空纤维膜,例如用于通过微滤或超滤来提供水处理的中空纤维膜。
背景技术
中空纤维膜能够通过不同的方法由多种聚合物制成。一种方法涉及如例如美国专利3,615,024、5,066,401和6,024,872中所教导的非溶剂诱导的相分离(NIPS)。另一种方法涉及如例如美国专利4,702,836和7,247,238中所教导的热诱导的相分离(TIPS)。膜可以具有位于其内表面或其外表面上的分离层,并且例如可以用于微滤(MF)或超滤(UF)。
能够通过将膜涂料涂布在预成形的管状编带上来增大中空纤维膜的强度。Mahendran等人的美国专利5,472,607和6,354,444教导了通过有限渗透将膜涂布在编带的外侧上。Hayano等人的美国专利4,061,861、Lee等人的美国专利7,267,872和Shinada等人的美国专利7,306,105还教导了编带支承的膜。根据Mahendran等人的教导制成的中空纤维膜已成功商业化。
已提出的用于制造增强中空纤维膜的另一种方法涉及在流延中空纤维的同时将纤维嵌入到中空纤维的壁内。Murase等人的美国公布2002/0046970、Yoon等人的国际公布WO03/097221和Koenhen的美国专利6,454,943描述了将单丝或复丝纱纵向地嵌入到中空纤维的壁内的方法。这些方法中没有一个已生产出可购得的膜。
本发明人最近的国际公布WO2010/108285和WO2010/148517教导了在流延中空纤维的同时在中空纤维的壁内形成笼状增强结构。增强结构的丝可以例如通过热、紫外线或经由适于粘合方法的丝组分的溶剂粘合而在接触点处粘合在一起。
发明内容
下文的介绍旨在向读者介绍详细描述以理解并且不限制或限定权利要求。
在关于通过纵向纱增强的中空纤维膜的实验中,发明人观察到纱断裂穿过膜壁的故障模式。纱首先被封装在膜壁中,但是随着膜在空气冲刷期间摇摆,纱似乎会穿透膜壁。国际公布WO2010/108285和WO2010/148517中所描述的笼状结构通过增加螺旋缠绕或其它的倾斜丝而避免了该问题。本说明书将描述备选的增强膜及其制造方法。
本说明书中所描述的一种中空纤维膜通过嵌入在流过流延头的膜涂料中的一个或多个复丝纱或束而得以增强。所述丝至少部分地由适于粘合至膜涂料或经固化的膜壁的聚合物制成。例如,聚合物能够溶于膜涂料中、可以在膜涂料中熔化、或者可以对其表面进行处理以促进粘合。纱丝或束丝例如通过被迫围绕弯曲部或穿过流延头中的狭窄间隙而分散开。涂料能够渗透纱或束,从而包绕并且粘合至单根丝。由于基本上所有的单根丝都粘结至膜壁,因此丝抵抗在膜壁内移动并且不在正常使用中从膜中切出。
一种制造增强中空纤维膜的方法包括在拉动一个或多个纱丝或束丝穿过流延头的同时使膜涂料流过流延头。纱或束可以被迫围绕流延头中的弯曲部或者穿过流延头中的狭窄间隙。丝适于与膜涂料或固化膜壁粘合在一起。
一种增强中空纤维膜包括一个或多个纱或束,每个纱或束都包括由膜壁单独包绕并且粘合至膜壁的多根丝。
附图说明
图1是通过双组分丝增强的中空纤维膜的横截面的照片。
图2A是涂布头的示意性横截面。
图2B是图2A的涂布头的持针器和针的等距视图。
图3是具有聚酯丝的中空纤维膜的横截面的照片。
图4是在比图1中大的放大率下的通过双组分丝增强的中空纤维膜的横截面的一部分的照片。
具体实施方式
参照图1,中空纤维膜10具有膜壁16。该膜10可以具有任何尺寸,但是膜10的结构特别用于制造壁相对于其它增强膜小并且薄的膜。例如,膜10的外径可以为大约1.5mm或更小,壁厚为大约0.25mm或更小。所示的膜10具有大约0.9mm的外径和大约0.7mm的内径。
膜壁16具有嵌入在其中的丝14的一个或多个束12。丝14是长连续纤维,使得至少大部分、或者大约80%或更多的丝14具有至少一米的长度。当膜10的至少一米长的节段被装入膜组件中时,至少大部分丝14沿节段的整个长度是连续的。优选地,所有或基本上所有的丝14沿节段的整个长度是连续的。
图1中所示的特定的膜10具有一个束12,但是可以存在多个束12,例如两个到八个之间。词语“束”在复合材料工业中用于表示大体未加捻捆的连续人造丝,或者至少长节段的丝。然而,束12典型地具有每束12少于大约200根的丝14,而复合材料工业中的束可能具有上千根丝。词语“束”还可以表示由连续人造丝制成的丝纱,或者至少长节段的丝(聚集在一起但是未充分加捻而未被分类为加捻纱)。也可以使用其它类型的纱或线,但它们不是优选的。
尽管束12是能够从纺锤抽出并且被拉动穿过流延头的纺织品单元,但是丝14至多仅松散地交织在束12中。丝14可以如图1中所示彼此分散开,使得膜涂料能够在至少大部分的相邻的丝14的对之间流动。尽管丝14可能偶尔或随机地彼此交叉,但是丝14沿膜10的长度大体彼此平行。束12可以具有大体圆柱形的初始形状,并且具有大于壁16的厚度的直径,但是丝14分散到配合于壁16中的横截面中。
丝14能够由聚合物纤维如聚乙烯、聚丙烯、聚酯、尼龙或PVDF制成。丝能够是双组分丝,所述双组分丝具有由适于粘合至形成膜的涂料的第一聚合物制成的第一部分(优选地为完整的外层或鞘)。粘合可以通过由涂料中的溶剂部分地溶解丝14的外层或其它部分。例如,增强丝14可以具有由能够溶解在用于膜涂料的溶剂中的聚合物制成的外层或其它部分。具体而言,外层或其它部分可以包括也存在于膜涂料中的聚合物。双组分丝14的第二部分(例如芯)由与第一聚合物相容的第二聚合物制成。第二聚合物可以被选择成相对于仅使用第一聚合物提供改进。例如,第二聚合物相对于第一聚合物可以更强、或成本更低、或者更强且成本更低。任一种或第一聚合物或第二聚合物可以是被选择成提高被一起纺织到双组分丝14中的能力的共聚物。
图1中所示的丝14是用下述纺织的双组分纤维,一个部分是聚对苯二甲酸乙二酯(PET)并且另一个部分是聚偏二氟乙烯(PVDF)。双组分丝14集合成220旦尼尔(g/9000m)的束12。该束12由36根丝14制成,每一根丝14为大约6旦尼尔。每一根丝14都具有PET的芯和PVDF的鞘,该芯占横截面积的大约70-90%。芯可以由熔化温度较低的共聚PET制成,以更密切地配合PVDF处理温度。PVDF的鞘层为大约1-2微米厚。束也能够通过其它数量和重量的丝制成。
基于聚偏二氟乙烯(PVDF)的膜涂料与上文段落中所描述的丝14相容并且可以用于使用NIPS方法形成膜壁16。这种涂料可以通过将PVDF溶解到热NMP中并且增加少量非溶剂来制备。涂料可以具有80-84重量%NMP、14-16重量%PVDF和2-4重量%PVP k30。聚合物浓度和温度可以改变以调节涂料粘度。
在图1的膜10中,丝14通过与膜壁16的材料化学相容的外部鞘层和更强的芯聚合物制成。例如,PET是易于形成到丝14中并且具有适于增强或支承膜的机械特性的强力材料。相比而言,PVDF是不易于形成到纱中的相对较弱的材料。然而,图1的芯和鞘双组分丝14二者良好地粘合至膜壁16并且为机械上牢固的。
膜10的拉伸强度首先由丝14的芯的拉伸强度的总和来确定。例如,上文所描述的220旦尼尔束12具有大约7N的断裂强度,该断裂强度主要由PET芯来提供。具有1.0mm外径和0.7mm内径的PVDF膜也具有在膜10中提供的每束12大约7N的断裂强度。相比而言,未增强的相同尺寸的纤维在小于2N下断裂。
在通过TIPS方法形成的膜中,丝的至少一部分可能具有允许其在受热膜涂料中至少部分地熔化的熔化温度。这些丝变为粘合至膜壁的熔化物。例如,双组分丝能够由Eastman F61HC聚对苯二甲酸乙二酯(PET)均聚物(熔点260℃)芯和Dupont3632共聚PET(熔点160℃)鞘来纺织。该双组分丝能够集合成束。芯可以占横截面积的50%至80%。共聚PET鞘在被嵌入到TIPS方法的受热涂料中时部分熔化并且在纺织期间变为粘合至膜壁的熔化物。
丝(包括单聚合物丝)的表面也可以在膜涂料围绕其流延之前被改性或处理,以促进粘合至膜涂料。这种处理可以包括例如等离子体或化学刻蚀。该处理被选择成适于纱和涂料的材料。
丝14(包括双组分丝14)可以在嵌入到壁16中之前预收缩或被热处理。可以提供加热器(例如使用热空气或受热引导件)以在束12被承载至涂布头时对束12进行加热从而使丝14预收缩或对丝14进行处理。备选地,束12或单根丝14可以在丝14集合成束12之前或者束12卷绕在用于进给涂布头的线轴上之前的一个或多个单独步骤中预收缩或被热处理。
加热区域可以包括直径4cm×长60cm的管状室,该管状室在顶部和底部处具有开口,因此加热区域的轴线能够与束12或丝14的行进方向对准。该管状室还具有与鼓风机和加热元件的侧连接。能够通过改变加热元件的电流消耗来控制空气温度。
根据时间以及加热区域中的温度和丝14上的任何张力,丝14将收缩或热定型或者收缩且热定型。然而,丝14不应当被加热至可以开始彼此粘合的程度。例如,空气温度可以处于大约100至200摄氏度之间。接触时间可以处于大约0.1至5.0秒之间。
优选地,丝14通过被置于张力下以在将丝14暴露于比涂料的温度高且比膜10将在使用中遇到的任何温度高的温度下的同时延长丝14而热定型。随后允许丝14在仍然保持延长状态下的同时冷却至大约室温。这有助于避免在制造或使用膜10时丝14的部件之间的分离。
为了在制造膜10的同时握持束12,一个或多个线轴(每一个线轴都用束12卷绕)都被放置在纱架上,该纱架典型地定位于流延头的旁边或之上。纱架由固定的线轴保持器、引导件和拉伸装置构成,像传统的纺织设备中一样。束12通过分配模具,该分配模具具有围绕流延头的中心轴线的延伸部均匀分布的一系列对准小孔。
图2A示出了流延头20,该流延头20备选地被称为涂布头或喷丝头。流延头20可以由三个主要部分制成——主体28、持针器30和按钮32。按钮32附接到主体28的一侧并且具有模具34(典型地为柱孔),该模具34形成流延头20的最终外部流延表面。持针器30保持针26并且被插入到主体28的相对侧中,使得针26进入模具34。针26的端部典型地与模具34的端部齐平,但是其中的一个也可以相对于另一个移位。针26和模具34产生环形圈,膜涂料和束12通过该环形圈。针26和模具34结合孔流体和涂料的流率确定了所得膜10的内径和外径。
针26被压入持针器30的中心孔24中。针26和中心孔24与流延头20的中心或纵向轴线对准并且在形成时提供用于将孔流体注入膜10中的管道。针26和持针器30的外径还提供用于涂料和束12通过涂布头20时沿其流动的内表面。
参照图2A和图2B,持针器30具有用于将行进穿过流延头20的每一个束12的槽38。主体28具有一个或多个束进口22,每一个束进口22都与槽38相对应,以用于接收期望数量的束12并且将其传输至槽38。典型地,仅一个束12通过每一个束进口22并且进入相应的槽38中,但是两个或更多个束12可以通过一个束进口22和槽38结合。此外,能够使用具有多个束进口22的流延头20而不提供穿过每一个可获得的束进口22的束12。
束进口22优选地被设定成相对于流延头22的中心轴线成一角度(例如30度或更大)。在从束进口22移动至槽38时,束12必须围绕设置于主体28上、或者设置于可选的嵌入主体28中的第一小孔44上的拐角42弯曲。槽38优选地还被壁架40阻断,该壁架40迫使束12在行进穿过流延头20时再次弯曲。束12在进入模具34、或者可选的单独的第三小孔36时再次弯曲。拐角42的上游边缘、壁架40、和模具34或第三小孔36(任一表面或者在束12弯曲时承受其的表面)优选地具有1mm或更大的半径并且被机器加工成细磨光。拐角42、壁架40、模具34或第三小孔36中的一个或多个使丝14分散,使得束12相对于其初始圆形横截面(如图1中所示)变得更宽且更薄。可以备选地通过在拐角42中的一个或多个与槽38的底部之间、可选的第二小孔50与槽38的底部之间、以及模具34或第三小孔36与针26之间具有狭窄间隙来提供或增强丝14的分散。
主体28还包括涂料注入端口46和排出部48。一组一个或多个第一端口46a允许涂料被注入槽38中。涂料穿过第一端口46a的流率优选地足以保持槽38充满涂料,使得丝14在接触针26之前被涂料润湿。如果通过第一端口46a提供不充足的涂料,则丝14将倾向于落入膜10的腔中并且膜10将具有缺陷。进入穿过第一端口46a的一些涂料将被迫逆流而围绕拐角42。该涂料通过与束进口22中的每一个束进口22连通的排出部48被排出。额外的第二端口46b允许涂料进入模具34与针26之间的间隙中。该额外的涂料完成了形成膜壁16需要的涂料的所需总流量。涂料能够从用氮加压的容器、或者使用容积式泵被注入端口46中。涂料可以被设置在处于大约15至200摄氏度的温度下和处于大约20至400kPa的压力下。
具有夹带丝14的膜涂料的管状流离开涂布头20并且落入凝固浴中。该凝固浴典型地是如已知的用于膜凝固的在底部和顶部装配有辊的罐。位于顶部辊之后的拾取卷绕器具有1至30m/min之间的可调节速度以及横向引导件以用凝固膜均匀地缠绕线轴。
参照图4,在扫描电子显微镜(SEM)照片下检查膜10显示基于PVDF的膜壁16良好地粘结至复丝束12内的单根丝14。在图4中能够看到,涂料渗透于丝14之间并且紧密地粘合至丝14的表面。有迹象表明PVDF与PET层之间的双组分纤维内存在一些分层。这是由切割样本造成的。
相比之下,图3显示膜涂料还能够使用流延头20制造成渗透在PET丝的133旦尼尔束的丝之间。然而,在该情况下,涂料不粘合至丝。相反,涂料在固化时收缩离开丝,从而使丝在弯曲时在膜内自由移动。
通过使用与膜涂料相容的鞘材料使得膜壁16粘结至丝14,并且通过将丝14分布在涂布头20中使得丝14充分分散开以允许膜涂料渗透在基本上所有的丝之间,制造出能够承受常规使用的弯曲运动的强韧的增强中空纤维膜10。所获得的是更耐久和抗裂的膜过滤装置。
丝14基本不增加膜的成本。相反,相比为了改进强度而会具有较厚的壁部段的无支承膜,壁较薄但是增强的膜能够产生按表面区域基础计成本较低的组件。
可以使用与选定的膜涂料相容的单组分丝。然而,这种丝与使用PET或另一种强力纺织聚合物作为芯材料的双组分纱相比,成本很可能更高或更弱或者成本更高且更弱。具体而言,PVDF和聚醚砜(PES)是优选的膜材料但是不会制成良好的增强纱,原因是PVDF和聚醚砜(PES)比PET更弱并且成本显著更高。
例子
图1中所示的膜10使用主要为PVDF/NMP混合物的涂料制成,所述涂料以28cc/min的速率被供给至模具34与针26之间的间隙中,并且以3cc/min被供给至槽38中。流延头20是如图2A和图2B所示的并且被加热至60摄氏度。采用具有鞘/芯类型的双组分丝14的一个束12。丝14的组分是70重量%的PET芯(Eastman F61HC)和30重量%的PVDF鞘(Solef1006)。束12包括均为6旦尼尔重量的36根未加捻丝14。线速度为15m/min(50fpm),气隙为110mm并且凝固浴为45摄氏度的水。
本书面描述使用例子公开本发明并且还使得本领域任何技术人员都能够实施本发明。本发明的范围由权利要求限定,并且可以包括本领域技术人员能够想到的其它例子。
Claims (21)
1.一种中空纤维膜,所述中空纤维膜包括:
a)膜壁,所述膜壁由膜涂料形成;以及
b)一个或多个束丝,所述一个或多个束丝嵌入在所述膜壁中;
其中所述丝至少部分地由适于粘合至所述膜涂料或所述膜壁的聚合物制成。
2.根据权利要求1所述的膜,其特征在于,所述聚合物设置于所述丝的围绕芯的鞘中,并且所述芯由不同的聚合物制成。
3.根据权利要求1所述的膜,其特征在于,所述聚合物能够溶解在用于所述膜涂料的溶剂中。
4.根据权利要求1所述的膜,其特征在于,所述聚合物是同样存在于所述膜涂料中的聚合物。
5.根据权利要求1所述的膜,其特征在于,所述聚合物是PVDF。
6.根据权利要求1所述的膜,其特征在于,所述聚合物是PES。
7.根据权利要求1所述的膜,其特征在于,所述聚合物具有低于用于形成所述膜壁的TIPS涂料的温度的熔化温度。
8.根据权利要求1所述的膜,其特征在于,所述聚合物具有被处理成促进粘合的表面。
9.根据权利要求5所述的膜,其特征在于,所述丝具有PET或共聚PET的芯。
10.根据权利要求1所述的膜,其特征在于,所述膜壁包绕并且粘合至所述丝。
11.根据权利要求1所述的膜,其特征在于,至少大部分所述丝从所述膜的至少1米长的节段的一端连续地延伸至另一端,并且所述丝大体彼此平行。
12.根据权利要求1所述的膜,其特征在于,所述丝的圆柱形捆的直径大于所述膜壁的厚度。
13.一种制造增强中空纤维膜的方法,所述方法包括以下步骤:
a)使膜涂料流过流延头;
b)拉动一个或多个纱丝或束丝穿过所述流延头;以及
c)迫使所述一个或多个纱或束围绕所述流延头中的至少一个弯曲部、或者穿过所述流延头中比所述丝的圆柱形捆更狭窄的至少一个间隙。
14.根据权利要求13所述的方法,其特征在于,所述丝包括第一聚合物的芯和第二聚合物的鞘。
15.根据权利要求14所述的方法,其特征在于,所述方法包括在步骤b)之前热定型所述丝的步骤。
16.根据权利要求13所述的方法,其特征在于,所述步骤a)包括:在所述流延头的第一区域中提供涂料,在所述第一区域中,束在模具上游的槽中行进;以及在与所述模具连通的第二区域中提供涂料。
17.根据权利要求13所述的方法,其特征在于,所述方法还包括向所述膜的腔提供孔流体的步骤。
18.根据权利要求14所述的方法,其特征在于,所述第二聚合物是也在涂料中提供的聚合物。
19.根据权利要求18所述的方法,其特征在于,所述第一聚合物包括PET。
20.根据权利要求13所述的方法,其特征在于,所述丝的圆柱形捆所具有的直径大于所述膜壁的厚度。
21.一种增强中空纤维膜,所述增强中空纤维膜包括膜壁以及一个或多个束,每个束都包括由所述膜壁单独包绕并且粘合至所述膜壁的多根丝。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/328761 | 2011-12-16 | ||
US13/328,761 US9321014B2 (en) | 2011-12-16 | 2011-12-16 | Hollow fiber membrane with compatible reinforcements |
PCT/US2012/065648 WO2013089971A1 (en) | 2011-12-16 | 2012-11-16 | Hollow fibre membrane with compatible reinforcements |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103998118A true CN103998118A (zh) | 2014-08-20 |
CN103998118B CN103998118B (zh) | 2017-11-10 |
Family
ID=48609055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201280062275.7A Active CN103998118B (zh) | 2011-12-16 | 2012-11-16 | 具有可相容增强物的中空纤维膜 |
Country Status (7)
Country | Link |
---|---|
US (1) | US9321014B2 (zh) |
KR (2) | KR20170049610A (zh) |
CN (1) | CN103998118B (zh) |
DE (1) | DE112012005274T5 (zh) |
HU (1) | HU231247B1 (zh) |
TW (1) | TWI652105B (zh) |
WO (1) | WO2013089971A1 (zh) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104580057A (zh) * | 2014-12-30 | 2015-04-29 | 江苏中兴微通信息科技有限公司 | 一种单载波mimo系统的时域导频及其同步方法 |
CN108034999A (zh) * | 2018-01-19 | 2018-05-15 | 山东招金膜天股份有限公司 | 一种生产长纤增强型中空纤维膜的喷丝板 |
CN108914227A (zh) * | 2018-07-26 | 2018-11-30 | 湖北省宇涛特种纤维股份有限公司 | 挤压涂覆式皮芯纤维长丝的制备方法、模头组件和织物 |
CN111111462A (zh) * | 2020-01-06 | 2020-05-08 | 浙江长兴求是膜技术有限公司 | 一种纤维增强的中空纤维多芯膜及其制备方法 |
CN111902197A (zh) * | 2018-03-08 | 2020-11-06 | 瑞普利金公司 | 切向流深度过滤系统和使用其进行过滤的方法 |
US11958018B2 (en) | 2018-05-25 | 2024-04-16 | Repligen Corporation | Tangential flow filtration systems and methods |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2448658B1 (en) * | 2009-06-26 | 2014-10-01 | BL Technologies, Inc. | Non-braided, textile-reinforced hollow fiber membrane |
EP2616167B1 (en) | 2010-09-15 | 2022-11-02 | BL Technologies, Inc. | Method to make yarn-reinforced hollow fibre membranes around a soluble core |
US9321014B2 (en) * | 2011-12-16 | 2016-04-26 | Bl Technologies, Inc. | Hollow fiber membrane with compatible reinforcements |
US9643129B2 (en) * | 2011-12-22 | 2017-05-09 | Bl Technologies, Inc. | Non-braided, textile-reinforced hollow fiber membrane |
US9022229B2 (en) * | 2012-03-09 | 2015-05-05 | General Electric Company | Composite membrane with compatible support filaments |
US8999454B2 (en) * | 2012-03-22 | 2015-04-07 | General Electric Company | Device and process for producing a reinforced hollow fibre membrane |
US9227362B2 (en) | 2012-08-23 | 2016-01-05 | General Electric Company | Braid welding |
CN103541029B (zh) * | 2013-10-18 | 2015-12-23 | 北京碧水源膜科技有限公司 | 新型生产长纤维增强型中空纤维膜的喷丝板 |
KR101971154B1 (ko) * | 2017-09-19 | 2019-04-22 | 키넷 주식회사 | 산소 농축에 이용되는 중공사막의 제조방법 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2288316A1 (en) * | 1998-11-03 | 2000-05-03 | S. Search B.V. | Longitudinal reinforced self-supporting capillary membranes and their use |
WO2006063426A1 (en) * | 2004-12-15 | 2006-06-22 | Zenon Environmental Inc. | Reinforced hollow fibre membrane |
Family Cites Families (222)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2747649A (en) | 1954-12-02 | 1956-05-29 | Smith Corp A O | Method and apparatus for fabricating a tubular article from a fibrous strand |
BE549181A (zh) | 1955-06-30 | |||
CH507012A (de) | 1966-09-02 | 1971-05-15 | Dietzsch Gmbh Hans Joachim | Verfahren zur Herstellung einer Kapillare für Membrankapillaren-Austauscher |
US3547721A (en) | 1966-09-02 | 1970-12-15 | Dietzsch Gmbh Hans Joachim | Process of making a diffusion unit |
FR1511581A (fr) | 1966-12-06 | 1968-02-02 | Rech S Tech Et Ind S R T I S A | Procédé de fabrication de fibres creuses |
US3494121A (en) | 1967-06-30 | 1970-02-10 | Celanese Corp | Hollow reinforced composite fiber and process for producing same |
US3567666A (en) | 1968-02-02 | 1971-03-02 | Carl Berger | Separation means |
US3615024A (en) | 1968-08-26 | 1971-10-26 | Amicon Corp | High flow membrane |
US3849241A (en) | 1968-12-23 | 1974-11-19 | Exxon Research Engineering Co | Non-woven mats by melt blowing |
GB1325672A (en) | 1969-07-16 | 1973-08-08 | Atomic Energy Authority Uk | Method of producing a membrane assembly and an apparatus for use therein |
US3705070A (en) * | 1969-07-22 | 1972-12-05 | Hercules Inc | Nonwoven fabric and process for preparing |
US3673028A (en) | 1969-10-01 | 1972-06-27 | Owens Corning Fiberglass Corp | Glass fiber container and method of construction |
US3676193A (en) | 1970-05-08 | 1972-07-11 | Abcor Inc | Process for casting integrally supported tubular membranes |
SE351987B (zh) | 1971-06-01 | 1972-12-18 | Alfa Laval Ab | |
US3745142A (en) | 1971-07-29 | 1973-07-10 | Hercules Inc | Process for preparing highly filled polyolefins |
US3816231A (en) * | 1972-05-25 | 1974-06-11 | Kendall & Co | Reinforced nonwoven fabrics |
FR2194461B1 (zh) | 1972-06-23 | 1975-03-07 | Rhone Poulenc Ind | |
FR2229437B1 (zh) | 1973-05-14 | 1976-04-23 | Rhone Poulenc Ind | |
JPS5328084Y2 (zh) | 1973-12-15 | 1978-07-15 | ||
JPS5339982Y2 (zh) | 1974-03-22 | 1978-09-27 | ||
GB1509892A (en) | 1974-03-25 | 1978-05-04 | High Temperature Eng Ltd | Strip winding machine |
JPS5819689B2 (ja) | 1975-06-18 | 1983-04-19 | 旭化成株式会社 | タコウマク |
US4020230A (en) | 1975-10-03 | 1977-04-26 | The Dow Chemical Company | Microporous polyethylene hollow fibers and process of preparing them |
JPS5282682U (zh) | 1975-12-18 | 1977-06-20 | ||
US4061821A (en) | 1975-12-29 | 1977-12-06 | Asahi Kasei Kogyo Kabushiki Kaisha | Semipermeable composite membranes |
JPS5728139Y2 (zh) | 1976-03-19 | 1982-06-18 | ||
JPS52137026U (zh) | 1976-04-14 | 1977-10-18 | ||
US4247498A (en) | 1976-08-30 | 1981-01-27 | Akzona Incorporated | Methods for making microporous products |
JPS575914Y2 (zh) | 1977-04-18 | 1982-02-03 | ||
US4340480A (en) | 1978-05-15 | 1982-07-20 | Pall Corporation | Process for preparing liquophilic polyamide membrane filter media and product |
JPS6245318Y2 (zh) | 1978-07-05 | 1987-12-03 | ||
JPS5849408Y2 (ja) | 1978-07-29 | 1983-11-11 | ダイハツ工業株式会社 | エアクリ−ナの雪詰り防止装置 |
US4631128A (en) | 1978-09-19 | 1986-12-23 | Albany International Corporation | Permselective hollow fiber bundle |
US4274539A (en) | 1978-09-22 | 1981-06-23 | Rabeneck Kenneth H | Packaged sealed-end tubular thermoplastic net bagging |
ZA80465B (en) | 1979-02-13 | 1981-08-26 | Celanese Corp | Process for preparing hollow microporous polypropylene fibers |
BE874961A (nl) | 1979-03-20 | 1979-09-20 | Studiecentrum Kernenergi | WERKWIJZE TER BEREIDING VAN EEN MEMBRAAN, ALDUS BEREID MEMBRAAN, ELEKTROCHEMISCHE CEL MET ZULK MEMBRAAN EN TOEPASSING VAN ZULKE ELEKTROchemische cel |
JPS55137209U (zh) | 1979-03-22 | 1980-09-30 | ||
DE2913762C2 (de) | 1979-04-05 | 1982-11-25 | Zinser Textilmaschinen Gmbh, 7333 Ebersbach | Umwindespinnmaschine |
JPS5656202A (en) | 1979-10-15 | 1981-05-18 | Asahi Chem Ind Co Ltd | Hollow porous membrane yarn made of polyvinylidene fluoride type resin |
US4384047A (en) | 1980-03-28 | 1983-05-17 | Pennwalt Corporation | Porous vinylidene fluoride polymer membrane and process for its preparation |
JPS584810Y2 (ja) | 1980-10-21 | 1983-01-27 | 禎美 伊藤 | 紙製容器 |
JPS621404Y2 (zh) | 1981-03-03 | 1987-01-13 | ||
US4406850A (en) | 1981-09-24 | 1983-09-27 | Hills Research & Development, Inc. | Spin pack and method for producing conjugate fibers |
JPS5893734U (ja) | 1981-12-18 | 1983-06-25 | 株式会社日立ホームテック | 湯沸器 |
US4707265A (en) | 1981-12-18 | 1987-11-17 | Cuno Incorporated | Reinforced microporous membrane |
US4541981A (en) | 1982-02-18 | 1985-09-17 | Celanese Corporation | Method for preparing a uniform polyolefinic microporous hollow fiber |
US4405688A (en) | 1982-02-18 | 1983-09-20 | Celanese Corporation | Microporous hollow fiber and process and apparatus for preparing such fiber |
US5392588A (en) * | 1982-06-07 | 1995-02-28 | Burlington Industries, Inc. | Spinning with hollow rotatable shaft and air flow |
JPS5952905U (ja) | 1982-09-30 | 1984-04-07 | モリト株式会社 | 野球靴のスパイク |
DE3301268A1 (de) | 1983-01-17 | 1984-07-26 | Akzo Gmbh, 5600 Wuppertal | Verfahren und vorrichtung zum herstellen von hohlfadenbuendeln |
JPS59196706A (ja) | 1983-04-22 | 1984-11-08 | Dainippon Ink & Chem Inc | 不均質膜およびその製造方法 |
JPS59196706U (ja) | 1983-06-16 | 1984-12-27 | 本田技研工業株式会社 | 端部固定用バンド |
DE3481817D1 (de) | 1983-07-30 | 1990-05-10 | Akzo Gmbh | Poren aufweisende formkoerper. |
JPS60137402U (ja) | 1984-02-23 | 1985-09-11 | 松下電工株式会社 | ボリユ−ム調節器 |
JPS60139815U (ja) | 1984-02-28 | 1985-09-17 | アサヒ企画株式会社 | 道路標識具 |
JPS61146308A (ja) | 1984-12-21 | 1986-07-04 | Ube Ind Ltd | 多孔質ポリプロピレン中空糸又はフイルムの製造法 |
GB2168981B (en) | 1984-12-27 | 1988-07-06 | Asahi Chemical Ind | Porous fluorine resin membrane and process for preparation thereof |
JPH0222904Y2 (zh) | 1985-03-01 | 1990-06-21 | ||
WO1987000213A1 (en) | 1985-06-27 | 1987-01-15 | Mitsubishi Rayon Co., Ltd. | Composite hollow yarn and a process for producing the same |
JPS6279806U (zh) | 1985-11-05 | 1987-05-21 | ||
JPH057588Y2 (zh) | 1986-02-10 | 1993-02-25 | ||
BE904553A (nl) | 1986-04-07 | 1986-07-31 | Studiecentrum Kernenergi | Werkwijze ter vervaardiging van een membraan voor micro-,ultra-, of hyperfiltratie en aldus vervaardigd membraan. |
US5011588A (en) | 1986-09-17 | 1991-04-30 | Rao K Jagan M | Ion selective dip electrode assembly |
JPH0780263B2 (ja) | 1987-01-07 | 1995-08-30 | 積水化成品工業株式会社 | 製函装置 |
US5139529A (en) | 1987-01-20 | 1992-08-18 | Terumo Kabushiki Kaisha | Porous polypropylene membrane and methods for production thereof |
DE3803693A1 (de) | 1987-03-10 | 1988-09-22 | Akzo Gmbh | Mehrlagiger hohlfadenwickelkoerper |
US4764320A (en) | 1987-06-12 | 1988-08-16 | The Dow Chemical Company | Method for preparing semipermeable membrane compositions |
FR2616812B1 (fr) | 1987-06-18 | 1989-07-07 | Lyonnaise Eaux | Procede de fabrication d'un materiau poreux organique et notamment d'une membrane semi-permeable organique, filiere pour la mise en oeuvre de ce procede, membranes realisees et modules de filtration renfermant ces membranes |
JPH0525529Y2 (zh) | 1987-07-15 | 1993-06-28 | ||
US4919856A (en) | 1988-02-23 | 1990-04-24 | Dainippon Ink And Chemicals, Inc. | Process for producing membranes for use in gas separation |
JPH0615152Y2 (ja) | 1988-03-14 | 1994-04-20 | 日産自動車株式会社 | 車両用動力伝達装置 |
JPH07116483B2 (ja) | 1988-05-12 | 1995-12-13 | 健 増本 | 耐食性塗料用非晶質合金粉末および耐食性塗料 |
NL8802225A (nl) | 1988-09-09 | 1990-04-02 | Stork Friesland Bv | Membraansamenstel. |
US4957943A (en) | 1988-10-14 | 1990-09-18 | Minnesota Mining And Manufacturing Company | Particle-filled microporous materials |
FR2641708B1 (fr) | 1988-12-22 | 1992-01-17 | Lyonnaise Eaux | Procede pour la fabrication d'un materiau poreux organique, notamment d'une membrane semi-permeable organique, comportant une pluralite de canaux longitudinaux separes |
US5022990A (en) | 1989-01-12 | 1991-06-11 | Asahi Kasei Kogyo Kabushiki Kaisha | Polyvinylidene fluoride porous membrane and a method for producing the same |
US5240610A (en) | 1989-03-16 | 1993-08-31 | Toyo Boseki Kabushiki Kaisha | Flexible tubular filtering material |
US5032282A (en) | 1989-04-14 | 1991-07-16 | Aligena Ag | Solvent-stable semipermeable composite membranes |
DE3923128A1 (de) | 1989-07-13 | 1991-01-24 | Akzo Gmbh | Flach- oder kapillarmembran auf der basis eines homogenen gemisches aus polyvinylidenfluorid und eines zweiten, durch chemische umsetzung hydrophilierbaren polymeren |
US5013339A (en) | 1989-12-05 | 1991-05-07 | The Dow Chemical Company | Compositions useful for making microporous polyvinylidene fluoride membranes, and process |
US5489406A (en) | 1990-05-09 | 1996-02-06 | Memtec Limited | Method of making polyvinylidene fluoride membrane |
US5271883A (en) | 1990-06-18 | 1993-12-21 | Kimberly-Clark Corporation | Method of making nonwoven web with improved barrier properties |
JP2904564B2 (ja) | 1990-08-31 | 1999-06-14 | オルガノ株式会社 | 中空糸膜を用いる濾過塔のスクラビング方法 |
AU8664191A (en) | 1990-09-25 | 1992-04-15 | Regal Manufacturing Company, Inc. | Apparatus and method for forming elastic corespun yarn |
JP2858913B2 (ja) | 1990-09-26 | 1999-02-17 | オルガノ株式会社 | 中空糸膜を用いる濾過方法 |
WO1992009359A1 (en) | 1990-11-28 | 1992-06-11 | Mitsubishi Rayon Co., Ltd. | Large-pore-diameter porous hollow yarn membrane of polyethylene, production thereof, and hydrophilic porous hollow yarn membrane of polyethylene |
US5168005A (en) | 1990-12-21 | 1992-12-01 | E. I. Du Pont De Nemours And Company | Multiaxially reinforced membrane |
DE69207020T2 (de) | 1991-02-08 | 1996-06-13 | Mitsubishi Rayon Co | Poröse Hohlfasermembran aus Polypropylen und ihrere Herstellung |
JPH04265132A (ja) | 1991-02-21 | 1992-09-21 | Ube Ind Ltd | 多孔質中空糸膜の製法 |
US5497608A (en) | 1991-02-22 | 1996-03-12 | Teijin Limited | Short fiber and continuous filament containing spun yarn-like composite yarn |
US5374453A (en) | 1991-05-24 | 1994-12-20 | Rogers Corporation | Particulate filled composite film and method of making same |
JP3232117B2 (ja) | 1991-11-19 | 2001-11-26 | 鐘淵化学工業株式会社 | ポリスルホン多孔質中空糸 |
DE69304587T2 (de) | 1992-03-30 | 1997-01-23 | Nitto Denko Corp | Poröser Film, Verfahren zu seiner Herstellung und Anwendung |
EP0641249A1 (en) | 1992-05-18 | 1995-03-08 | Costar Corporation | Supported microporous membranes |
US5332498A (en) | 1992-10-13 | 1994-07-26 | Transfair Corporation | Integrated hollow fiber membrane permeators and method of fabricating integrated permeators |
US5238562A (en) | 1992-10-13 | 1993-08-24 | Transfair Corporation | Fiber membrane elements and modules and methods of fabrication for improved fluid separation |
US5284583A (en) | 1992-10-13 | 1994-02-08 | Transfair Corporation | Fiber membrane elements and modules and methods of fabrication for fluid separation |
US5651888A (en) | 1992-12-16 | 1997-07-29 | Kubota Corporation | Filtration membrane cartridge |
JPH06246139A (ja) | 1993-02-25 | 1994-09-06 | Dainippon Ink & Chem Inc | 不均質中空繊維膜およびその製造方法 |
US5336298A (en) | 1993-03-29 | 1994-08-09 | Air Products And Chemicals, Inc. | Polyelectrolyte membranes for the separation of acid gases |
US5804128A (en) | 1993-05-04 | 1998-09-08 | Chisso Corporation | Cylindrical filter and process for producing the same |
US5380477A (en) * | 1993-05-25 | 1995-01-10 | Basf Corporation | Process of making fiber reinforced laminates |
US5328610A (en) | 1993-06-15 | 1994-07-12 | Integrated Process Technologies | Self-supported low pressure drop hollow fiber membrane panel and contactor module |
DE4335108C1 (de) | 1993-10-14 | 1995-01-05 | Schunk Ultraschalltechnik Gmbh | Verfahren und Vorrichtung zum Kompaktieren und anschließenden Schweißen von elektrischen Leitern |
US5472607A (en) | 1993-12-20 | 1995-12-05 | Zenon Environmental Inc. | Hollow fiber semipermeable membrane of tubular braid |
CA2141768A1 (en) | 1994-02-07 | 1995-08-08 | Tatsuro Mizuki | High-strength ultra-fine fiber construction, method for producing the same and high-strength conjugate fiber |
KR100468551B1 (ko) | 1994-10-31 | 2005-03-16 | 킴벌리-클라크 월드와이드, 인크. | 고밀도부직필터매체 |
EP0745713B1 (en) | 1994-11-18 | 2003-02-05 | Teijin Limited | Nubuck type woven fabric and method of production thereof |
US5656167A (en) | 1994-11-22 | 1997-08-12 | Martz; Joel D. | Dimensionally stabilized breathable membrane |
TW288051B (zh) | 1994-11-22 | 1996-10-11 | Ebara Corp | |
KR0158431B1 (ko) | 1995-06-23 | 1998-11-16 | 윤덕용 | 수소분리용 무기재료막의 제조방법 |
US8852438B2 (en) | 1995-08-11 | 2014-10-07 | Zenon Technology Partnership | Membrane filtration module with adjustable header spacing |
US5582913A (en) * | 1995-08-23 | 1996-12-10 | Hoechst Celanese Corporation | Polyester/polyamide composite fiber |
DE19531099C2 (de) | 1995-08-24 | 1997-06-12 | Rehau Ag & Co | Kapillarmembran |
US5709735A (en) | 1995-10-20 | 1998-01-20 | Kimberly-Clark Worldwide, Inc. | High stiffness nonwoven filter medium |
JPH09122463A (ja) | 1995-10-31 | 1997-05-13 | Nitto Denko Corp | ポリスルホン系半透膜及びその製造方法 |
US20080221668A1 (en) | 1995-11-13 | 2008-09-11 | Boston Scientific Corp. | Expandable supportive branched endoluminal grafts |
US5882461A (en) | 1996-03-14 | 1999-03-16 | Integrated Process Technologies | Concentric radial flow hollow fiber module and method of manufacture |
US5972501A (en) | 1996-05-20 | 1999-10-26 | Kuraray Co., Ltd. | Easily fibrillatable fiber |
US6048641A (en) | 1996-05-20 | 2000-04-11 | Kuraray Co., Ltd. | Readily fibrillatable fiber |
NL1003625C2 (nl) | 1996-07-17 | 1998-01-21 | Stork Friesland Bv | Semipermeabel capillair, alsmede een werkwijze en een inrichting voor het vervaardigen daarvan. |
US5716689A (en) | 1996-09-19 | 1998-02-10 | Integrated Process Technologies | Hollow fiber membrane carpet manufacturing method and an elementary carpet member and carpet |
IL119490A (en) * | 1996-10-25 | 2000-06-01 | Weizmann Kiryat Membrane Prod | Process for producing a tubular membrane assembly |
US6148865A (en) | 1996-12-02 | 2000-11-21 | A & P Technology, Inc. | Braided sleeve, tubular article and method of manufacturing the tubular article |
US6280791B1 (en) | 1997-04-11 | 2001-08-28 | Cuno, Inc. | Process of making a three-region reinforced microporous filtration membrane |
US6264044B1 (en) | 1997-04-11 | 2001-07-24 | Cuno, Inc. | Reinforced, three zone microporous membrane |
US6354443B1 (en) | 1997-05-01 | 2002-03-12 | Millipore Corporation | Surface modified porous membrane and process |
ES2210761T3 (es) | 1997-05-21 | 2004-07-01 | The Board Of Trustees Of The Leland Stanford Junior University | Composicion y procedimiento para mejorar el transporte a traves de las membranas biologicas. |
JPH10323546A (ja) | 1997-05-27 | 1998-12-08 | Nitto Denko Corp | 多孔性中空濾過膜の製造方法及びその装置 |
US5914039A (en) | 1997-07-01 | 1999-06-22 | Zenon Environmental Inc. | Filtration membrane with calcined α-alumina particles therein |
US6354444B1 (en) | 1997-07-01 | 2002-03-12 | Zenon Environmental Inc. | Hollow fiber membrane and braided tubular support therefor |
US6114017A (en) | 1997-07-23 | 2000-09-05 | Fabbricante; Anthony S. | Micro-denier nonwoven materials made using modular die units |
US6083393A (en) | 1997-10-27 | 2000-07-04 | Pall Corporation | Hydrophilic membrane |
US6174825B1 (en) * | 1997-12-09 | 2001-01-16 | Albany International Corp. | Resin-impregnated belt for application on papermaking machines and in similar industrial application |
US6015495A (en) | 1998-02-18 | 2000-01-18 | Saehan Industries Incorporation | Composite polyamide reverse osmosis membrane and method of producing the same |
JPH11319519A (ja) | 1998-05-20 | 1999-11-24 | Nitto Denko Corp | 補強材が埋め込まれた分離膜とその製造方法 |
JP3755298B2 (ja) | 1998-06-11 | 2006-03-15 | 株式会社村田製作所 | 超音波溶着装置 |
JP2000093768A (ja) | 1998-09-21 | 2000-04-04 | Nok Corp | 複合多孔質中空糸膜 |
AU765966C (en) | 1998-10-09 | 2004-07-08 | Ge Betzdearborn Canada Company | Cyclic aeration system for submerged membrane modules |
US6562879B1 (en) * | 1999-02-15 | 2003-05-13 | Nippon Shokubai Co., Ltd. | Water-absorbent resin powder and its production process and use |
JP2000288365A (ja) | 1999-04-07 | 2000-10-17 | Toray Ind Inc | 中空糸膜およびその製造方法 |
US6183640B1 (en) | 1999-04-09 | 2001-02-06 | Usf Filtration And Separations Group, Inc. | Highly asymmetric anionic membranes |
JP2001062258A (ja) | 1999-08-27 | 2001-03-13 | Mitsubishi Rayon Co Ltd | 中空糸膜複合体の製造方法 |
EP1170390A4 (en) | 1999-09-28 | 2005-02-23 | Jfe Steel Corp | HOT ROLLED STEEL SHEET HAVING HIGH TENSILE STRENGTH RESISTANCE AND PROCESS FOR PRODUCING THE SAME |
GB2355728A (en) | 1999-10-27 | 2001-05-02 | Anson Medical Ltd | Tubular medical implants and methods of manufacture |
US6398807B1 (en) | 2000-01-31 | 2002-06-04 | Scimed Life Systems, Inc. | Braided branching stent, method for treating a lumen therewith, and process for manufacture therefor |
US6622604B1 (en) | 2000-01-31 | 2003-09-23 | Scimed Life Systems, Inc. | Process for manufacturing a braided bifurcated stent |
DE60135596D1 (de) | 2000-03-16 | 2008-10-16 | Kuraray Co | Hohlfasern und Verfahren zur Herstellung von Hohlfasern |
US6802820B1 (en) | 2000-04-13 | 2004-10-12 | Transvivo, Inc. | Specialized hollow fiber membranes for in-vivo plasmapheresis and ultrafiltration |
ATE300349T1 (de) | 2000-05-05 | 2005-08-15 | Zenon Environmental Inc | Gelvergussverfahren zur herstellung von hohlfaserfiltermembranen |
US20020155289A1 (en) | 2000-09-01 | 2002-10-24 | Frank Cistone | Melt processable perfluoropolymer forms |
JP2002166141A (ja) * | 2000-09-21 | 2002-06-11 | Mitsubishi Rayon Co Ltd | 多孔質膜 |
US6465094B1 (en) | 2000-09-21 | 2002-10-15 | Fiber Innovation Technology, Inc. | Composite fiber construction |
IT1318709B1 (it) | 2000-09-27 | 2003-08-27 | Ausimont Spa | Composizioni termoplastiche di fluoropolimeri. |
US7205256B2 (en) | 2000-10-17 | 2007-04-17 | Sharp Kabushiki Kaisha | Oxide material, method for preparing oxide thin film and element using said material |
AUPR094600A0 (en) | 2000-10-23 | 2000-11-16 | Usf Filtration And Separations Group Inc. | Fibre membrane arrangement |
US6616912B2 (en) | 2001-01-05 | 2003-09-09 | Spectrum Laboratories, Inc. | Bi-component microporous hollow fiber membrane structure for in vivo propagation of cells |
ITMI20010421A1 (it) | 2001-03-01 | 2002-09-02 | Ausimont Spa | Membrane porose semipermeabili di fluoropolimeri semicristallini |
CN100448517C (zh) | 2001-03-06 | 2009-01-07 | 旭化成化学株式会社 | 制造空心纤维膜的方法 |
US6783702B2 (en) | 2001-07-11 | 2004-08-31 | Hyperion Catalysis International, Inc. | Polyvinylidene fluoride composites and methods for preparing same |
EP1435261B1 (en) | 2001-10-04 | 2009-06-17 | Toray Industries, Inc. | Method for production of a hollow fiber membrane |
KR100493113B1 (ko) | 2001-12-07 | 2005-05-31 | 주식회사 코오롱 | 편물로 보강된 복합 중공사막 |
CZ2002184A3 (cs) | 2002-01-16 | 2003-09-17 | Eidos, S. R. O. | Mikroporézní membránová dutá vlákna s podélně proměnnými mechanickými a filtračními vlastnostmi a způsob jejich přípravy |
DE10201577A1 (de) | 2002-01-17 | 2003-07-31 | Schlafhorst & Co W | Spinnvorrichtung zur Herstellung eines gesponnenen Fadens mittels eines umlaufenden Luftstroms |
US6890435B2 (en) | 2002-01-28 | 2005-05-10 | Koch Membrane Systems | Hollow fiber microfiltration membranes and a method of making these membranes |
AUPS046602A0 (en) | 2002-02-12 | 2002-03-07 | U.S. Filter Wastewater Group, Inc. | Halar membranes |
US7247238B2 (en) | 2002-02-12 | 2007-07-24 | Siemens Water Technologies Corp. | Poly(ethylene chlorotrifluoroethylene) membranes |
CA2478445C (en) | 2002-03-12 | 2007-10-30 | Puron Ag | Method for producing fabric-reinforced capillary membranes, in particular for ultrafiltration |
DE10211051A1 (de) | 2002-03-13 | 2003-10-02 | Fresenius Medical Care De Gmbh | Kapillarmembran und Vorrichtung zur Herstellung derselben |
US6811696B2 (en) | 2002-04-12 | 2004-11-02 | Pall Corporation | Hydrophobic membrane materials for filter venting applications |
US6797212B2 (en) | 2002-04-18 | 2004-09-28 | Medarray, Inc. | Method for forming hollow fibers |
JP3633910B2 (ja) | 2002-05-07 | 2005-03-30 | 有限会社井上商店 | 超音波溶着装置 |
AU2003230426A1 (en) | 2002-05-17 | 2003-12-02 | Para Limited | Hollow fiber membrane having supporting material for reinforcement, preparation thereof and spinneret for preparing the same |
AU2003241797B2 (en) | 2002-06-14 | 2008-10-09 | Toray Industries, Inc. | Porous membrane and method of manufacturing the porous membrane |
KR100910844B1 (ko) | 2002-07-19 | 2009-08-06 | 주식회사 파라 | 모노-필라멘트를 포함하는 보강용 지지체를 가지는기체분리 및 수처리용 외압식 중공사막, 그 제조방법 및제조장치 |
ATE511868T1 (de) | 2002-09-12 | 2011-06-15 | Asahi Kasei Kuraray Medical Co | Plasma-reinigungsmembran und plasma- reinigungssystem |
DE10249585B4 (de) | 2002-10-24 | 2007-10-04 | Teijin Monofilament Germany Gmbh | Leitfähige, schmutzabweisende Kern-Mantel-Faser mit hoher Chemikalienresistenz, Verfahren zu deren Herstellung und Verwendung |
KR20040038473A (ko) | 2002-11-01 | 2004-05-08 | 에스케이케미칼주식회사 | 중공사막 |
US7306105B2 (en) | 2002-11-12 | 2007-12-11 | Mitsubishi Rayon Co., Ltd. | Composite porous membrane and method for producing the same |
DE50205743D1 (de) | 2002-11-30 | 2006-04-13 | Keller Elke | Verfahren zum Schweisskompaktieren und Kompaktiermaschine |
ATE472364T1 (de) | 2003-04-10 | 2010-07-15 | X Flow Bv | Verfahren zum trocknen einer feuchten porösen membranstruktur |
AU2003903507A0 (en) | 2003-07-08 | 2003-07-24 | U. S. Filter Wastewater Group, Inc. | Membrane post-treatment |
US7165682B1 (en) | 2003-07-16 | 2007-01-23 | Accord Partner Limited | Defect free composite membranes, method for producing said membranes and use of the same |
JP4293529B2 (ja) | 2003-07-29 | 2009-07-08 | 旭化成ケミカルズ株式会社 | 有機性廃水の処理方法 |
US7172075B1 (en) | 2003-08-08 | 2007-02-06 | Accord Partner Limited | Defect free composite membranes, method for producing said membranes and use of the same |
US20050124249A1 (en) | 2003-12-09 | 2005-06-09 | Uribarri Peter V. | Abrasion-resistant sleeve for wiring and the like |
DE10358477B3 (de) | 2003-12-11 | 2005-04-21 | Poromedia Gmbh | Verfahren zum Herstellen von rohrförmigen Membranen |
US7354392B2 (en) | 2004-02-25 | 2008-04-08 | Transvivo Inc. | Structurally optimized hollow fiber membranes |
US7290668B2 (en) * | 2004-03-01 | 2007-11-06 | Filtrona Richmond, Inc. | Bicomponent fiber wick |
ITBO20040311A1 (it) | 2004-05-18 | 2004-08-18 | Azionaria Costruzioni Acma Spa | Dispositivo di saldatura ad ultrasuoni. |
US7122121B1 (en) | 2004-05-28 | 2006-10-17 | Jiang Ji | Advanced submerged membrane modules, systems and processes |
JP4958779B2 (ja) | 2004-08-20 | 2012-06-20 | シーメンス・ウォーター・テクノロジーズ・コーポレイション | 正方形のmbrマニホールド・システム |
EP1658889A1 (en) | 2004-11-19 | 2006-05-24 | "VLAAMSE INSTELLING VOOR TECHNOLOGISCH ONDERZOEK", afgekort "V.I.T.O." | Longitudinal reinforced self-supporting capillary membranes and method for manufacturing thereof |
IS7959A (is) | 2004-12-16 | 2006-06-17 | Skaginn Hf. | Athferth og bunathur vith sj βlfvirka beingarthst”ku, skurth meth vatni og snyrtingu β afurth |
JP5079984B2 (ja) | 2005-02-23 | 2012-11-21 | 株式会社Gsユアサ | 膜エレメントの製造方法 |
US7909177B2 (en) | 2005-11-29 | 2011-03-22 | Kolon Industries, Inc. | Braid-reinforced composite hollow fiber membrane |
JP4757311B2 (ja) | 2005-11-29 | 2011-08-24 | コーロン インダストリーズ インク | 編物により補強された複合中空繊維膜 |
US7441667B2 (en) | 2005-12-15 | 2008-10-28 | E.I. Du Pont De Nemours And Company | Composite membranes for liquid filtration having improved uniformity and adhesion of substrate to membrane |
BRPI0708377A2 (pt) | 2006-02-28 | 2011-06-07 | Toray Industries | material de base de fibra de reforço para pré-formas, processo para a produção de laminados a partir do mesmo, e assim por diante |
ATE512710T1 (de) | 2006-04-10 | 2011-07-15 | Vito | Gestrickte stütze für röhrenförmige membranen |
EP1882512A1 (en) | 2006-07-26 | 2008-01-30 | Vlaamse Instelling Voor Technologisch Onderzoek (Vito) | Planar capillary membrane filtration module and method of its production |
US7964049B2 (en) | 2006-07-28 | 2011-06-21 | E. I. Du Pont De Nemours And Company | Processes for making fiber-on-end materials |
JP2008114180A (ja) | 2006-11-07 | 2008-05-22 | Mitsubishi Rayon Co Ltd | 中空状多孔質膜用支持体、中空状多孔質膜およびそれらの製造方法 |
WO2008066340A1 (en) | 2006-11-29 | 2008-06-05 | Ho Sung Yoon | Method and apparatus of manufacturing membrane using tubular support |
KR20080074019A (ko) | 2007-02-07 | 2008-08-12 | 주식회사 코오롱 | 관형 편물 및 그를 이용한 복합 중공사막 |
TW200946323A (en) | 2008-05-13 | 2009-11-16 | Guo-Chang Jiang | Ultrasonic welding machine and ultrasonic welding method |
TWI377978B (en) | 2008-05-21 | 2012-12-01 | Mitsubishi Rayon Co | Hollow porous film and manufacturing method thereof |
US20090314708A1 (en) * | 2008-06-18 | 2009-12-24 | Sepratek Inc. | Hollow fiber membrane for feeding mixture into hollow space thereof |
US20100108599A1 (en) | 2008-11-03 | 2010-05-06 | Kristof Vizvardi | Filtration membrane with tubular support |
WO2010081228A1 (en) | 2009-01-14 | 2010-07-22 | Pierre Cote | Immersed membrane cassette and method of operation |
BRPI1006414A2 (pt) * | 2009-03-26 | 2016-02-10 | Bl Technologies Inc | estrutura de reforço para uma membrana de fibra oca, membrana de fibra oca, método para produzir uma estrutura de reforço e método para produzir uma membrana de fibra oca de reforço |
EP2448658B1 (en) * | 2009-06-26 | 2014-10-01 | BL Technologies, Inc. | Non-braided, textile-reinforced hollow fiber membrane |
KR20110089621A (ko) | 2010-02-01 | 2011-08-09 | 홍성철 | 초음파 용착기 |
WO2011112657A1 (en) * | 2010-03-11 | 2011-09-15 | Kempharm, Inc. | Fatty acid conjugates of quetiapine, process for making and using the same |
US9031609B2 (en) | 2010-03-29 | 2015-05-12 | Kyocera Corporation | Mobile communication device |
EP2616167B1 (en) | 2010-09-15 | 2022-11-02 | BL Technologies, Inc. | Method to make yarn-reinforced hollow fibre membranes around a soluble core |
WO2012067380A2 (ko) | 2010-11-18 | 2012-05-24 | 제일모직 주식회사 | 관형 편물, 이를 이용한 중공사막 및 그의 제조방법 |
US8529814B2 (en) * | 2010-12-15 | 2013-09-10 | General Electric Company | Supported hollow fiber membrane |
JP2012136626A (ja) * | 2010-12-27 | 2012-07-19 | Sumitomo Chemical Co Ltd | 液晶ポリエステル多孔質膜 |
KR101185424B1 (ko) | 2011-04-26 | 2012-10-08 | 제일모직주식회사 | 모노필라멘트가 보강된 중공사 멤브레인 및 그 제조방법 |
US9321014B2 (en) * | 2011-12-16 | 2016-04-26 | Bl Technologies, Inc. | Hollow fiber membrane with compatible reinforcements |
US9022229B2 (en) * | 2012-03-09 | 2015-05-05 | General Electric Company | Composite membrane with compatible support filaments |
-
2011
- 2011-12-16 US US13/328,761 patent/US9321014B2/en active Active
-
2012
- 2012-11-16 HU HU1400398A patent/HU231247B1/hu unknown
- 2012-11-16 KR KR1020177010950A patent/KR20170049610A/ko not_active Application Discontinuation
- 2012-11-16 WO PCT/US2012/065648 patent/WO2013089971A1/en active Application Filing
- 2012-11-16 CN CN201280062275.7A patent/CN103998118B/zh active Active
- 2012-11-16 DE DE112012005274.9T patent/DE112012005274T5/de not_active Ceased
- 2012-11-16 KR KR1020147016086A patent/KR101806600B1/ko active IP Right Grant
- 2012-12-03 TW TW101145316A patent/TWI652105B/zh active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2288316A1 (en) * | 1998-11-03 | 2000-05-03 | S. Search B.V. | Longitudinal reinforced self-supporting capillary membranes and their use |
WO2006063426A1 (en) * | 2004-12-15 | 2006-06-22 | Zenon Environmental Inc. | Reinforced hollow fibre membrane |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104580057A (zh) * | 2014-12-30 | 2015-04-29 | 江苏中兴微通信息科技有限公司 | 一种单载波mimo系统的时域导频及其同步方法 |
CN108034999A (zh) * | 2018-01-19 | 2018-05-15 | 山东招金膜天股份有限公司 | 一种生产长纤增强型中空纤维膜的喷丝板 |
CN108034999B (zh) * | 2018-01-19 | 2023-09-01 | 山东招金膜天股份有限公司 | 一种生产长纤增强型中空纤维膜的喷丝板 |
CN111902197A (zh) * | 2018-03-08 | 2020-11-06 | 瑞普利金公司 | 切向流深度过滤系统和使用其进行过滤的方法 |
CN111902197B (zh) * | 2018-03-08 | 2022-10-28 | 瑞普利金公司 | 切向流深度过滤系统和使用其进行过滤的方法 |
US11643628B2 (en) | 2018-03-08 | 2023-05-09 | Repligen Corporation | Tangential flow depth filtration systems and methods of filtration using same |
US11643629B2 (en) | 2018-03-08 | 2023-05-09 | Repligen Corporation | Tangential flow depth filtration systems and methods of filtration using same |
US11958018B2 (en) | 2018-05-25 | 2024-04-16 | Repligen Corporation | Tangential flow filtration systems and methods |
CN108914227A (zh) * | 2018-07-26 | 2018-11-30 | 湖北省宇涛特种纤维股份有限公司 | 挤压涂覆式皮芯纤维长丝的制备方法、模头组件和织物 |
CN111111462A (zh) * | 2020-01-06 | 2020-05-08 | 浙江长兴求是膜技术有限公司 | 一种纤维增强的中空纤维多芯膜及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
KR20140108640A (ko) | 2014-09-12 |
DE112012005274T5 (de) | 2014-10-09 |
US9321014B2 (en) | 2016-04-26 |
KR101806600B1 (ko) | 2018-01-10 |
US20130153490A1 (en) | 2013-06-20 |
TWI652105B (zh) | 2019-03-01 |
TW201334859A (zh) | 2013-09-01 |
CN103998118B (zh) | 2017-11-10 |
KR20170049610A (ko) | 2017-05-10 |
HUP1400398A2 (en) | 2015-03-02 |
HU231247B1 (hu) | 2022-05-28 |
WO2013089971A1 (en) | 2013-06-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103998118A (zh) | 具有可相容增强物的中空纤维膜 | |
AU2016234906B2 (en) | Non-braided, textile-reinforced hollow fiber membrane | |
CN103097008B (zh) | 围绕可溶芯体制造纱增强式中空纤维膜的方法 | |
US9132390B2 (en) | Non-braided reinforced holow fibre membrane | |
US9643129B2 (en) | Non-braided, textile-reinforced hollow fiber membrane | |
CN102224285A (zh) | 多束金属纤维纱 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |