公开(公告)号：US09289730B2

公开(公告)日：2016-03-22

申请号：US13945459

申请日：2013-07-18

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Dhaval Ajit Bhandari ,  Patrick Joseph McCloskey ,  Paul Edward Howson ,  Kristi Jean Narang ,  William Koros

IPC: B01D53/22 ,  B01D71/70 ,  B29D23/00 ,  B01D69/08 ,  B01D69/12 ,  B01D69/14 ,  B01D71/16 ,  B01D71/44 ,  B01D71/68 ,  B01D71/02

CPC classification number: B01D71/70 ,  B01D53/228 ,  B01D69/088 ,  B01D69/12 ,  B01D69/148 ,  B01D71/024 ,  B01D71/027 ,  B01D71/16 ,  B01D71/44 ,  B01D71/68 ,  B01D2257/102 ,  B01D2257/504 ,  B29D23/00 ,  B29D23/001 ,  Y02C10/10

Abstract: The invention provides improved hollow fiber membranes having at least two layers, and methods for forming the same. The methods include co-extruding a first composition, a second composition, and a third composition to form a dual layer hollow fiber membrane. The first composition includes a glassy polymer; the second composition includes a polysiloxane; and the third composition includes a bore fluid. The dual layer hollow fiber membranes include a first layer and a second layer, the first layer being a porous layer which includes the glassy polymer of the first composition, and the second layer being a polysiloxane layer which includes the polysiloxane of the second composition.

Abstract translation: 本发明提供了具有至少两层的改进的中空纤维膜及其形成方法。 所述方法包括共挤出第一组合物，第二组合物和第三组合物以形成双层中空纤维膜。 第一组合物包括玻璃状聚合物; 第二组合物包括聚硅氧烷; 并且第三组合物包括孔流体。 双层中空纤维膜包括第一层和第二层，第一层是包含第一组合物的玻璃状聚合物的多孔层，第二层是包含第二组合物的聚硅氧烷的聚硅氧烷层。