公开(公告)号：US5064580A

公开(公告)日：1991-11-12

申请号：US380058

申请日：1989-07-14

Applicant: Henry N. Beck ,  Richard A. Lundgard ,  Robert D. Mahoney

Inventor： Henry N. Beck ,  Richard A. Lundgard ,  Robert D. Mahoney

IPC: B01D67/00 ,  B01D69/08 ,  B01D71/52 ,  C08J3/09 ,  C08J5/18 ,  C08J9/28 ,  C08L71/08 ,  C08L71/10 ,  D01D5/24 ,  D01D5/247 ,  D01F6/66

CPC classification number: D01F6/665 ,  B01D67/0009 ,  B01D67/0027 ,  B01D67/003 ,  B01D69/02 ,  B01D69/08 ,  B01D69/081 ,  B01D69/085 ,  B01D69/088 ,  B01D71/52 ,  C08J3/091 ,  C08J5/18 ,  C08J9/28 ,  D01D5/24 ,  D01D5/247 ,  B01D2323/08 ,  B01D2323/12 ,  C08J2201/052 ,  C08J2371/00

Abstract: A method of preparing a microporous membrane from unsulfonated poly(etheretherketone)-type polymers.

Abstract translation: 从未磺化的聚（醚醚酮）型聚合物制备微孔膜的方法。

公开(公告)号：US4968733A

公开(公告)日：1990-11-06

申请号：US401854

申请日：1989-09-01

Applicant: Heinz-Joachim Muller ,  Friedbert Wechs

Inventor： Heinz-Joachim Muller ,  Friedbert Wechs

IPC: B01D61/14 ,  A61M1/16 ,  B01D67/00 ,  B01D71/16 ,  B01D71/30 ,  B01D71/32 ,  B01D71/34 ,  B01D71/38 ,  B01D71/40 ,  B01D71/50 ,  B01D71/64 ,  B01D71/66 ,  B01D71/68 ,  C08J3/14 ,  C08J9/28 ,  D01D5/24 ,  D01F6/76 ,  D01F6/78 ,  D01F6/94

CPC classification number: B01D67/0018 ,  B01D67/003 ,  B01D71/68 ,  C08J3/14 ,  C08J9/28 ,  B01D2323/12 ,  B01D2325/022 ,  C08J2201/052 ,  C08J2201/0544 ,  Y10S424/07

Abstract: A process produces microporous powders or shaped articles, in particular membranes in the form of flat films, tubular films or hollow fibers, which may be used for controlled release of an active compound, for dialysis, gas separation, ultrafiltration or microfiltration, from polyvinylidene fluoride and/or polyphenylene sulfide and/or polysulfone and/or polyacrylonitrile and/or ethylene/vinyl alcohol copolymer and/or ethylene/chlorotrifluoroethylene copolymer and/or polyethersulfone and/or polyether-imide and/or polymethyl methacrylate and/or polycarbonate and/or cellulose triacetate. The process utilizes phase separation by means of thermally induced triggering or triggering induced by a non-solvent of a solution of the polymer in a mixture containing .epsilon.-caprolactam as the essential dissolving constituent. The solution may be formed before the phase separation is triggered.

Abstract translation: 一种方法产生微孔粉末或成型制品，特别是可以用于透明，气体分离，超滤或微滤的用于透析，气体分离，超滤或微过滤的平板，管状膜或中空纤维形式的膜，由聚偏二氟乙烯 和/或聚苯硫醚和/或聚砜和/或聚丙烯腈和/或乙烯/乙烯醇共聚物和/或乙烯/氯三氟乙烯共聚物和/或聚醚砜和/或聚醚酰亚胺和/或聚甲基丙烯酸甲酯和/或聚碳酸酯和/或 三醋酸纤维素。 该方法利用通过由含有ε-己内酰胺作为必需溶解成分的混合物的聚合物溶液的非溶剂引起的热引发触发或引发相分离。 在触发相分离之前可以形成溶液。

公开(公告)号：US4919992A

公开(公告)日：1990-04-24

申请号：US214391

申请日：1988-07-01

Applicant: David J. Blundell ,  Frederic N. Cogswell ,  Peter J. Meakin

Inventor： David J. Blundell ,  Frederic N. Cogswell ,  Peter J. Meakin

IPC: C08J3/12 ,  B01D71/52 ,  B32B5/28 ,  C08J9/26 ,  C08J9/28 ,  D01D5/42

CPC classification number: C08J9/26 ,  B01D71/52 ,  C08J9/28 ,  D01D5/42 ,  C08J2201/052 ,  Y10T428/24273 ,  Y10T428/249953 ,  Y10T428/249978 ,  Y10T428/249987 ,  Y10T428/31533

Abstract: A process of producing a structural network from a semicrystalline, melt crystallizable polyarylene ether or polyarylene thioether comprising providing a molten mixture of at least one semicrystalline polymer in the presence of a melt plasticizer for the polymer which melt contains at least some polymer entities having a crystalline form, the total polymer concentration being between 5 and 50% by weight of the mixture of polymer and melt plasticizer, and heating the mixture of polymer and melt plasticizer at a heating rate of between 1.degree. C./hour and 1000.degree. C./hr, preferably between 10.degree. C./hour and 100.degree. C./hour until the mixture is at a temperature in the range 10.degree. C. below to 20.degree. C. above its clearing point and cooling the mixture until it solidifies whereby an open cell structure essentially free from granular superstructure is obtained.

公开(公告)号：US4828772A

公开(公告)日：1989-05-09

申请号：US192595

申请日：1988-05-09

Applicant: George Lopatin ,  Larry Y. Yen

Inventor： George Lopatin ,  Larry Y. Yen

IPC: B01D67/00 ,  B01D71/26 ,  C08J9/28

CPC classification number: C08J9/28 ,  B01D67/003 ,  B01D71/26 ,  C08J2201/03 ,  C08J2201/052 ,  C08J2201/0543 ,  C08J2201/0546 ,  C08J2323/06 ,  Y10S264/48 ,  Y10S264/62

Abstract: Microporous membranes and methods for producing such membranes from ultrahigh molecular weight polyethylene are described. The method employs extrusion of a solution of UHMW-PE and porogen through a forming die followed by thermal phase separation of polymer and porogen. Microporous structures are created by removing porogen. Microporous membranes produced include membranes with good permeability to air and water making them particularly useful as filtration media and water-resistance breathable membranes.

Abstract translation: 描述了微孔膜和从超高分子量聚乙烯生产这种膜的方法。 该方法通过成形模挤出UHMW-PE和致孔剂溶液，然后热分解聚合物和致孔剂。 通过去除致孔剂产生微孔结构。 产生的微孔膜包括对空气和水具有良好渗透性的膜，使得它们特别用作过滤介质和耐水透气膜。

公开(公告)号：US4659470A

公开(公告)日：1987-04-21

申请号：US753515

申请日：1985-07-10

Applicant: Gerard T. M. Caneba ,  David S. Soong

Inventor： Gerard T. M. Caneba ,  David S. Soong

IPC: B01D67/00 ,  B29C67/20 ,  C08J9/28 ,  B29C39/38 ,  C08J9/34

CPC classification number: B01D67/0083 ,  B01D67/0009 ,  B01D67/003 ,  B29C67/202 ,  C08J9/28 ,  B01D2323/08 ,  B01D2323/12 ,  B01D2325/04 ,  C08J2201/052

Abstract: A method for providing anisotropic polymer membranes from a binary polymer/solvent solution using a thermal inversion process. A homogeneous binary solution is cast onto a support and cooled in such a way as to provide a differential in cooling rate across the thickness of the resulting membrane sheet. Isotropic or anisotropic structures of selected porosities can be produced, depending on the initial concentration of polymer in the selected solvent and on the extent of the differential in cooling rate. This differential results in a corresponding gradation in pore size. The method may be modified to provide a working skin by applying a rapid, high-temperature pulse to redissolve a predetermined thickness of the membrane at one of its faces and then freezing the entire structure.

Abstract translation: 使用热反转方法从二元聚合物/溶剂溶液提供各向异性聚合物膜的方法。 将均匀的二元溶液浇铸到载体上并以这样的方式冷却，以便在所得膜片的厚度上提供冷却速率差。 根据所选择的溶剂中的聚合物的初始浓度和冷却速率差异的程度，可以产生所选孔隙度的各向同性或各向异性结构。 该差异导致孔径相应的渐变。 该方法可以通过施加快速的高温脉冲来在其一个面上重新溶解预定厚度的膜，然后冷冻整个结构，从而提供工作皮肤。

公开(公告)号：US09505899B2

公开(公告)日：2016-11-29

申请号：US14444419

申请日：2014-07-28

Applicant: LG CHEM, LTD.

Inventor： Bong-Tae Kim ,  Heon-Sik Song ,  Jung-Ho Lim ,  Kyoung-Min Kim

IPC: C08J9/28 ,  C08J5/18 ,  C08L23/02 ,  B29C47/00 ,  B29K23/00 ,  B29L31/34

CPC classification number: C08J9/28 ,  B29C47/0057 ,  B29K2023/065 ,  B29L2031/3468 ,  C08J5/18 ,  C08J9/283 ,  C08J2201/052 ,  C08J2323/02 ,  C08J2323/06 ,  C08L23/02

Abstract: The present invention discloses a method for preparing a microporous polyolefin film comprising: a step of injecting a composition comprising polyolefin 30 to 60 wt % and a diluent, which can make liquid-liquid phase separation with the polyolefin thermodynamically 40 to 70 wt %, into an extruding machine, and melting and kneading thereof to prepare a single phase melt; and a step of extruding the melt while conducting liquid-liquid phase separation by passing through a section having the temperature below the liquid-liquid phase separation temperature and forming thereof in the form of a sheet, and a microporous polyolefin film prepared according to the method.

Abstract translation: 本发明公开了一种微孔聚烯烃薄膜的制造方法，其特征在于，包括以下步骤：将含有聚烯烃30〜60重量％的组合物和稀释剂进行注入，所述稀释剂能够将聚烯烃与动力学上的液 - 液相分离为40〜70重量％ 挤出机，并将其熔融和捏合以制备单相熔体; 以及通过使液体 - 液相分离温度低于液 - 液相分离温度的部分进行液 - 液相分离而挤出熔融物的步骤，并将其形成为片状，以及根据该方法制备的微孔聚烯烃膜 。

公开(公告)号：US20120323339A1

公开(公告)日：2012-12-20

申请号：US13518669

申请日：2010-12-23

Applicant: Beatriz Olalde Graells ,  María Jesús Jurado Oñate

Inventor： Beatriz Olalde Graells ,  María Jesús Jurado Oñate

IPC: A61L27/56 ,  B29C67/20 ,  C08J9/28 ,  B32B5/18 ,  A61F2/28

CPC classification number: A61L27/18 ,  A61L27/56 ,  C08J9/26 ,  C08J9/28 ,  C08J2201/0422 ,  C08J2201/0444 ,  C08J2201/0446 ,  C08J2201/052 ,  C08J2205/05 ,  C08J2207/10 ,  C08J2371/12 ,  Y10T428/249953 ,  Y10T428/249986 ,  C08L71/00

Abstract: The present invention refers to a porous PEEK-type polymer article comprising a porous PEEK-type polymer structure and presenting at least a trimodal pore distribution. The invention describes a process for the production of said porous PEEK-type polymer article comprising: a) contacting a PEEK-type polymer with a composition comprising at least a organic solvent, b) heating at a temperature at which the PEEK-type polymer is dissolved, c) adding at least a porogen agent, d) cooling the mixture obtained in c) at a temperature at least equal or lower than the temperature at which the PEEK-type polymer precipitates, e) forming said cooled mixture into a shaped article, f) removing the organic solvent and the porogen agent, and g) recovering the PEEK-type polymer article.

Abstract translation: 本发明涉及包含多孔PEEK型聚合物结构并呈现至少三峰孔分布的多孔PEEK型聚合物制品。 本发明描述了一种生产所述多孔PEEK型聚合物制品的方法，包括：a）使PEEK型聚合物与至少包含有机溶剂的组合物接触，b）在PEEK型聚合物为 溶解，c）至少加入致孔剂，d）在至少等于或低于PEEK型聚合物沉淀的温度的温度下冷却c）中得到的混合物，e）将所述冷却的混合物形成成型制品 ，f）除去有机溶剂和致孔剂，g）回收PEEK型聚合物制品。

公开(公告)号：US20040135274A1

公开(公告)日：2004-07-15

申请号：US10743918

申请日：2003-12-24

Inventor： Shigenobu Matsuda ,  Fujiharu Nagoya ,  Toshinori Koizumi

IPC: B05B003/00 ,  B29C035/02 ,  B29C065/00 ,  B32B005/14

CPC classification number: B01D67/0086 ,  B01D67/0011 ,  B01D67/0016 ,  B01D67/0027 ,  B01D67/003 ,  B01D69/02 ,  B01D69/08 ,  B01D69/081 ,  B01D71/34 ,  B01D2323/08 ,  B01D2323/12 ,  B01D2323/30 ,  B01D2323/385 ,  C08J9/28 ,  C08J2201/052 ,  C08J2327/16 ,  Y10T428/249961

Abstract: A microporous membrane is produced by cooling a solution comprising a vinylidene fluoride homopolymer or copolymer having a weight average molecular weight of 1null105 or more and a solvent therefor, to form a two-phase gel, said microporous membrane comprising a polymer phase comprising said vinylidene fluoride homopolymer or copolymer, and intercommunicating voids which have an average pore size measured by the half-dry method of 0.005 to 5 nullm and range from one side of the membrane to the other side, and said microporous membrane having as its internal structure a percolation structure in which the polymer phase forms an isotropic network structure by three-dimensional branching in arbitrary directions, the voids are formed by surrounding by said polymer phase of the network structure and intercommunicate with one another, and the ratio of the maximum pore size measured by the bubble point method to the average pore size measured by the half-dry method is 2.0 or less.

Abstract translation: 通过将包含重均分子量为1×10 5以上的偏二氟乙烯均聚物或共聚物的溶液及其溶剂冷却来形成微孔膜，形成两相凝胶，所述微孔膜包含聚合物相，其包含 所述偏二氟乙烯均聚物或共聚物，以及通过半干法测定的平均孔径为0.005〜5μm，并且从膜的一侧到另一侧的范围的相互连通的空隙，并且所述微多孔膜具有作为其内部结构 其中聚合物相通过任意方向上的三维分支形成各向同性网络结构的渗透结构，通过网状结构的所述聚合物相包围并相互连通而形成空隙，并且最大孔径 通过泡点法测定的半干法测得的平均孔径为2.0以下。

公开(公告)号：US06632850B2

公开(公告)日：2003-10-14

申请号：US09825917

申请日：2001-04-04

Applicant: Shannon Kay Hughes ,  Robert Steven Kody ,  James Stephen Mrozinski ,  Myles Lee Brostrom

Inventor： Shannon Kay Hughes ,  Robert Steven Kody ,  James Stephen Mrozinski ,  Myles Lee Brostrom

IPC: C08J904

CPC classification number: C08J9/28 ,  B01D67/0027 ,  B01D67/003 ,  B01D69/06 ,  B01D71/26 ,  B01D2323/08 ,  B01D2325/48 ,  B29C55/005 ,  B29K2023/12 ,  B29K2105/0005 ,  B29K2105/0038 ,  C08J5/18 ,  C08J9/0004 ,  C08J2201/052 ,  C08J2323/10 ,  Y10T428/31855

Abstract: Microporous materials and articles are disclosed. The microporous materials contain a crystallizable propylene-containing polymer, a beta-nucleating agent, and a diluent that is miscible with the polymer at a temperature above the melting temperature of the polymer and that phase separates from the polymer at a temperature below the polymer crystallization temperature. The invention is also directed to methods of forming the microporous material using thermal induced phase separation and subsequent processing.

Abstract translation: 公开了微孔材料和制品。 微孔材料含有可结晶的含丙烯的聚合物，β-成核剂和稀释剂，其在高于聚合物的熔融温度的温度下可与聚合物混溶，并且该相在低于聚合物结晶的温度下与聚合物分离 温度。 本发明还涉及使用热诱导相分离和随后的加工形成微孔材料的方法

公开(公告)号：US6096213A

公开(公告)日：2000-08-01

申请号：US134142

申请日：1998-08-14

Applicant: Philip D. Radovanovic ,  Scott D. Thomas

Inventor： Philip D. Radovanovic ,  Scott D. Thomas

IPC: C08J9/26 ,  B01D67/00 ,  B01D71/26 ,  B29C55/00 ,  C08J9/28 ,  H01M2/16 ,  B01D71/06

CPC classification number: H01M2/1653 ,  B01D67/0027 ,  B01D67/003 ,  B01D71/26 ,  B29C55/005 ,  C08J9/28 ,  B01D2323/12 ,  B29K2023/00 ,  B29K2105/04 ,  C08J2201/052

Abstract: Briefly, in one aspect, the present invention provides puncture resistant microporous materials made of melt-processable semi-crystalline thermoplastic polymers. The microporous materials can be produced at relatively high rates and at low cost. Films and multilayer constructions made of the microporous materials and methods of making microporous materials also are provided.

Abstract translation: 简而言之，在一个方面，本发明提供了由可熔融加工的半结晶热塑性聚合物制成的抗刺穿微孔材料。 微孔材料可以以相对高的速率和低成本生产。 还提供了由微孔材料制成的薄膜和多层结构以及制造微孔材料的方法。