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1. 发明授权

US08523981B2 Hydrophobic ozone-stable membrane made of polyvinylidene fluoride 有权
标题翻译：疏水性臭氧稳定膜由聚偏二氟乙烯制成
公开(公告)号：US08523981B2
公开(公告)日：2013-09-03
申请号：US13132941
申请日：2009-12-07
申请人： Quan Huang , Karl Bauer , Phung Duong , Oliver Schuster
发明人： Quan Huang , Karl Bauer , Phung Duong , Oliver Schuster
IPC分类号： B01D53/22 , B01D19/00 , B01D71/34 , B01D69/08 , D01D5/247
CPC分类号： B01D69/087 , B01D69/08 , B01D71/34 , B01D71/76 , B01D2325/02 , B01D2325/24
摘要： The invention relates to a hydrophobic, integrally asymmetrical hollow-fiber membrane made of a vinylidene fluoride homopolymer or copolymer, wherein the wall of the membrane has a microporous supporting layer having a sponge-like, open-pored, essentially isotropic pore structure without finger pores, the supporting layer extending across at least 90% of the wall thickness and having pores with an average diameter of less than 0.5 μm. The hollow-fiber membrane is characterized in that it has a separating layer adjacent to the supporting layer on its outer surface and that it has an outer surface with a homogeneous, uniform structure without pores, a porosity in the range from 40 to 80 vol. %, a wall thickness from 25 to 100 μm, a diameter of the lumen of the hollow-fiber membrane from 100 to 500 μm, a permeability for nitrogen of at least 25 ml/(cm2·min·bar), and an elongation at break of at least 250%. The invention further relates to a method for producing hollow-fiber membranes of this type.
摘要翻译：本发明涉及由偏二氟乙烯均聚物或共聚物制成的疏水性，整体不对称的中空纤维膜，其中膜的壁具有微孔支撑层，其具有海绵状，开孔，基本上各向同性的孔结构，无指孔，支撑层延伸穿过至少90％的壁厚并具有平均直径小于0.5μm的孔。中空纤维膜的特征在于，在其外表面上具有与支撑层相邻的分离层，并且其具有不具有孔的均匀，均匀结构的外表面，孔隙率在40至80体积％范围内。％，壁厚25〜100μm，中空纤维膜的管腔直径为100〜500μm，氮的渗透性至少为25ml /（cm2·min·bar），伸长率为至少打破250％。本发明还涉及这种类型的中空纤维膜的制造方法。

2. 发明申请

US20110239865A1 HYDROPHOBIC OZONE-STABLE MEMBRANE MADE OF POLYVINYLIDENE FLUORIDE 有权
标题翻译：聚偏二氟乙烯的疏水性臭氧稳定膜
公开(公告)号：US20110239865A1
公开(公告)日：2011-10-06
申请号：US13132941
申请日：2009-12-07
申请人： Quan Huang , Karl Bauer , Phung Duong , Oliver Schuster
发明人： Quan Huang , Karl Bauer , Phung Duong , Oliver Schuster
IPC分类号： B01D19/00 , D01D5/247
CPC分类号： B01D69/087 , B01D69/08 , B01D71/34 , B01D71/76 , B01D2325/02 , B01D2325/24
摘要： The invention relates to a hydrophobic, integrally asymmetrical hollow-fiber membrane made of a vinylidene fluoride homopolymer or copolymer, wherein the wall of said membrane has a microporous supporting layer having a sponge-like, open-pored, essentially isotropic pore structure without finger pores, said supporting layer extending across at least 90% of the wall thickness and having pores with an average diameter of less than 0.5 μm. The hollow-fiber membrane is characterized in that it has a separating layer adjacent to the supporting layer on its outer surface and that it has an outer surface with a homogeneous, uniform structure without pores, a porosity in the range from 40 to 80 vol. %, a wall thickness from 25 to 100 μm, a diameter of the lumen of the hollow-fiber membrane from 100 to 500 μm, a permeability for nitrogen of at least 25 ml/(cm2·min·bar), and an elongation at break of at least 250%. The invention further relates to a method for producing hollow-fiber membranes of this type.
摘要翻译：本发明涉及由偏二氟乙烯均聚物或共聚物制成的疏水，整体不对称的中空纤维膜，其中所述膜的壁具有微孔支撑层，其具有海绵状，开孔，基本上各向同性的孔结构，无指孔所述支撑层延伸穿过至少90％的壁厚并且具有平均直径小于0.5μm的孔。中空纤维膜的特征在于，在其外表面上具有与支撑层相邻的分离层，并且其具有不具有孔的均匀，均匀结构的外表面，孔隙率在40至80体积％范围内。％，壁厚为25〜100μm，中空纤维膜的内径为100〜500μm，氮的渗透性为25ml /（cm 2·分钟·bar）以上，至少打破250％。本发明还涉及这种类型的中空纤维膜的制造方法。

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