公开(公告)号：US20050145107A1

公开(公告)日：2005-07-07

申请号：US10502346

申请日：2003-01-08

申请人： Erich Kessler ,  Thomas Batzilla ,  Friedbert Wechs ,  Frank Wiese

发明人： Erich Kessler ,  Thomas Batzilla ,  Friedbert Wechs ,  Frank Wiese

IPC分类号： A61M1/18 ,  B01D53/22 ,  B01D67/00 ,  B01D69/02 ,  B01D69/08 ,  B01D71/26 ,  B29C67/20

CPC分类号： B01D67/0018 ,  B01D53/228 ,  B01D67/0027 ,  B01D67/003 ,  B01D69/02 ,  B01D69/08 ,  B01D71/26 ,  B01D2323/38 ,  B01D2325/022 ,  B01D2325/026 ,  B29C67/202

摘要： Process for producing an integrally asymmetrical hydrophobic polyolefinic membrane with a sponge-like, open-pored, microporous support structure and a separation layer with a denser structure, using a thermally induced liquid-liquid phase separation process. A solution of at least one polyolefin is extruded to form a shaped object. The solvent used is one for which the demixing temperature of a solution of 25% by weight of the polyolefin in this solvent is 10 to 70° C. above the solidification temperature. After leaving the die, the shaped object is cooled using a liquid cooling medium that does not dissolve the polymer up to the die temperature, until the phase separation and solidification of the high-polymer-content phase take place. The integrally asymmetrical membrane producible in this manner has a porosity of greater than 30% to 75% by volume, a sponge-like, open-pored, microporous support layer without macrovoids and with on average isotropic pores, and on at least one of its surfaces a separation layer with pores

摘要翻译： 使用热诱导的液 - 液相分离方法制造具有海绵状，开孔，微孔载体结构的整体不对称的疏水性聚烯烃膜和具有更致密结构的分离层的方法。 将至少一种聚烯烃的溶液挤出以形成成形物体。 使用的溶剂是在该溶剂中25重量％聚烯烃的溶液的分层温度高于固化温度10-70℃的溶剂。 在离开模具之后，使用不溶解聚合物直至模具温度的液体冷却介质来冷却成型物体，直到发生高分子含量相的相分离和凝固。 以这种方式生产的整体不对称膜具有大于30体积％至75体积％的孔隙率，不具有大孔和平均各向同性孔的海绵状，开孔，微孔支撑层，并且在其至少一个 表面具有<100nm孔径的分离层（如果有的话）。 膜优选用于气体分离或气体转移过程，特别是用于血液氧合。

公开(公告)号：US07429343B2

公开(公告)日：2008-09-30

申请号：US10502346

申请日：2003-01-08

申请人： Erich Kessler ,  Thomas Batzilla ,  Friedbert Wechs ,  Frank Wiese

发明人： Erich Kessler ,  Thomas Batzilla ,  Friedbert Wechs ,  Frank Wiese

IPC分类号： B29C65/00 ,  B01D67/00

CPC分类号： B01D67/0018 ,  B01D53/228 ,  B01D67/0027 ,  B01D67/003 ,  B01D69/02 ,  B01D69/08 ,  B01D71/26 ,  B01D2323/38 ,  B01D2325/022 ,  B01D2325/026 ,  B29C67/202

摘要： Process for producing an integrally asymmetrical hydrophobic polyolefinic membrane with a sponge-like, open-pored, microporous support structure and a separation layer with a denser structure, using a thermally induced liquid-liquid phase separation process. A solution of at least one polyolefin is extruded to form a shaped object. The solvent used is one for which the demixing temperature of a solution of 25% by weight of the polyolefin in this solvent is 10 to 70° C. above the solidification temperature. After leaving the die, the shaped object is cooled using a liquid cooling medium that does not dissolve the polymer up to the die temperature, until the phase separation and solidification of the high-polymer-content phase take place. The integrally asymmetrical membrane producible in this manner has a porosity of greater than 30% to 75% by volume, a sponge-like, open-pored, microporous support layer without macrovoids and with on average isotropic pores, and on at least one of its surfaces a separation layer with pores

摘要翻译： 使用热诱导的液 - 液相分离方法制造具有海绵状，开孔，微孔载体结构的整体不对称的疏水性聚烯烃膜和具有更致密结构的分离层的方法。 将至少一种聚烯烃的溶液挤出以形成成形物体。 使用的溶剂是在该溶剂中25重量％聚烯烃的溶液的分层温度高于固化温度10-70℃的溶剂。 在离开模具之后，使用不溶解聚合物直至模具温度的液体冷却介质来冷却成型物体，直到发生高分子含量相的相分离和凝固。 以这种方式可生产的整体不对称膜具有大于30体积％至75体积％的孔隙率，不具有大孔和具有平均各向同性孔的海绵状，开孔，微孔支撑层，并且在其至少一个 表面具有<100nm孔径的分离层（如果有的话）。 膜优选用于气体分离或气体转移过程，特别是用于血液氧合。

公开(公告)号：US06497752B1

公开(公告)日：2002-12-24

申请号：US09868593

申请日：2001-08-24

申请人： Erich Kessler ,  Thomas Batzilla ,  Friedbert Wechs ,  Frank Wiese

发明人： Erich Kessler ,  Thomas Batzilla ,  Friedbert Wechs ,  Frank Wiese

IPC分类号： B01D5322

CPC分类号： B01D67/0018 ,  B01D67/0027 ,  B01D67/003 ,  B01D69/02 ,  B01D69/08 ,  B01D71/26 ,  B01D2325/022

摘要： Process for producing integrally asymmetrical hydrophobic polyolefinic membranes with a separation layer, in particular for gas exchange, via thermally induced liquid-liquid phase separation. A solution of at least one polyolefin in a solvent system containing a compound A and a compound B is extruded to form a shaped object. Compound A is a strong solvent and compound B a weak non-solvent for the polymer. After leaving the die, the shaped object is cooled using a solid or liquid cooling medium, which does not dissolve the polymer and does not react chemically with it, until the phase separation and solidification of the high-polymer-content phase take place. The integrally asymmetrical membrane producible in this manner has a porosity of greater than 30% to 75% by volume, a sponge-like, open-pored, microporous support layer without macrovoids and on average isotropic pores, a separation layer on at least one of its surfaces with pores

摘要翻译： 通过热诱导的液 - 液相分离制备具有分离层，特别是用于气体交换的整体不对称疏水性聚烯烃膜的方法。 将至少一种聚烯烃在含有化合物A和化合物B的溶剂体系中的溶液挤出以形成成形物体。 化合物A是强溶剂，化合物B是聚合物的弱非溶剂。 离开模具后，使用固体或液体冷却介质冷却成形物体，其不溶解聚合物并且不与其发生化学反应，直到发生高分子量含量相的相分离和凝固。 以这种方式生产的整体不对称膜具有大于30体积％至75体积％的孔隙率，不具有大孔和平均各向同性孔的海绵状，开孔，微孔支撑层，在至少一个 其表面具有小于100nm的孔（如果有的话）和至少为1的气体分离因子α（CO 2 / N 2）。膜优选用于血氧。

公开(公告)号：US06375876B1

公开(公告)日：2002-04-23

申请号：US09869153

申请日：2001-09-04

申请人： Erich Kessler ,  Thomas Batzilla ,  Friedbert Wechs ,  Frank Wiese

发明人： Erich Kessler ,  Thomas Batzilla ,  Friedbert Wechs ,  Frank Wiese

IPC分类号： B29C6500

CPC分类号： B01D67/0018 ,  B01D67/0027 ,  B01D67/003 ,  B01D69/02 ,  B01D69/08 ,  B01D71/26 ,  B01D2323/08 ,  B01D2323/12 ,  B01D2325/022 ,  B01D2325/026 ,  C08J9/28

摘要： Process for producing an integrally asymmetrical hydrophobic polyolefinic membrane with a sponge-like, open-pored, microporous support structure and a separation layer with a denser structure compared to the support structure, via a thermally induced liquid-liquid phase separation process. A solution of at least one polyolefin in a solvent system consisting of a compound A and a compound B is extruded to form a shaped object. Compound A is a weak solvent and compound B a non-solvent for the polymer. After leaving the die, the shaped object is cooled using a solid or liquid cooling medium that does not dissolve or react chemically with the polymer at temperatures up to the die temperature, until the phase separation and solidification of the high-polymer-content phase take place.

摘要翻译： 通过热诱导的液 - 液相分离方法制备具有海绵状，开孔，微孔载体结构的整体不对称的疏水聚烯烃膜和具有比载体结构更致密结构的分离层的方法。 将至少一种聚烯烃在由化合物A和化合物B组成的溶剂体系中的溶液挤出以形成成形物体。 化合物A是弱溶剂，化合物B是聚合物的非溶剂。 离开模具后，使用固体或液体冷却介质冷却成型物体，该固体或液体冷却介质在高达模具温度的温度下不与聚合物溶解或化学反应，直到高分子量含量相的相分离和凝固 地点。