公开(公告)号：US10434477B2

公开(公告)日：2019-10-08

申请号：US14786443

申请日：2014-04-22

申请人： NOK Corporation

发明人： Takatoshi Sato ,  Kazuhiko Namigata ,  Masataka Kondo

IPC分类号： B01D69/08

摘要： A fiber-reinforced porous hollow fiber membrane comprising a hollow fiber membrane and a reinforcing fiber completely or partially embedded in the hollow fiber membrane; wherein the reinforcing fiber is placed in a portion that does not exceed 90%, preferably 80%, of the thickness of the hollow fiber membrane as viewed from an inner or outer peripheral surface of the hollow fiber membrane on a side that is not a side of the porous hollow fiber membrane to come in contact with an object to be treated, and preferably at least 50 volume % of the cross section of the reinforcing fiber is embedded in the hollow fiber membrane. The obtained fiber-reinforced porous hollow fiber membrane has excellent permeability, separation performance, and mechanical properties.

公开(公告)号：US10150085B2

公开(公告)日：2018-12-11

申请号：US15515940

申请日：2015-10-09

申请人： NOK CORPORATION

发明人： Masataka Kondo ,  Kensuke Watanabe ,  Hirokazu Yamamoto

IPC分类号： B01D53/22 ,  B01D69/08 ,  C01B31/02 ,  B01D71/02 ,  B01D69/14 ,  C01B32/05

摘要： A membrane-forming dope for carbon membranes, comprising polyphenylene oxide in an amount giving a concentration of 15 to 40 wt. % in the membrane-forming dope, and sulfur in an amount giving a ratio of 0.1 to 5.0 wt. %, preferably 0.2 to 3.0 wt. %, of the total weight of the polyphenylene oxide and the sulfur, both of which are dissolved in a solvent that can dissolve these components. A hollow fiber carbon membrane is produced by molding the membrane-forming dope for carbon membranes in a hollow shape by means of a wet or dry-wet spinning method using a double tubular nozzle, subjecting the molded product to an infusibilization treatment by heating at 150 to 350° C. in the air, and then subjecting it to a carbonization treatment by heating at 600 to 800° C. in an inert atmosphere or under vacuum. When the product molded in a hollow shape by means of a wet or dry-wet spinning method is subjected to an infusibilization treatment by heating in the air while stretching the product with a stress of 0.002 to 0.005 MPa, a hollow fiber carbon membrane having excellent gas permeability and a further high gas separation factor (He/CH4) can be obtained.

公开(公告)号：US20160082396A1

公开(公告)日：2016-03-24

申请号：US14786443

申请日：2014-04-22

申请人： NOK CORPORATION

发明人： Takatoshi Sato ,  Kazuhiko Namigata ,  Masataka Kondo

IPC分类号： B01D69/08

CPC分类号： B01D69/08 ,  B01D69/081 ,  B01D69/085 ,  B01D2325/40

摘要： A fiber-reinforced porous hollow fiber membrane comprising a hollow fiber membrane and a reinforcing fiber completely or partially embedded in the hollow fiber membrane; wherein the reinforcing fiber is placed in a portion that does not exceed 90%, preferably 80%, of the thickness of the hollow fiber membrane as viewed from an inner or outer peripheral surface of the hollow fiber membrane on a side that is not a side of the porous hollow fiber membrane to come in contact with an object to be treated, and preferably at least 50 volume % of the cross section of the reinforcing fiber is embedded in the hollow fiber membrane. The obtained fiber-reinforced porous hollow fiber membrane has excellent permeability, separation performance, and mechanical properties.

摘要翻译： 一种纤维增强多孔中空纤维膜，包括中空纤维膜和完全或部分嵌入中空纤维膜中的增强纤维; 其特征在于，所述增强纤维的中空纤维膜的内周面或外周面在所述中空纤维膜的不是侧面的一侧的外侧面的厚度不超过所述中空纤维膜的厚度的90％以上，优选为80％ 的多孔中空纤维膜与被处理体接触，优选将中空丝膜中的至少50体积％的增强纤维的截面嵌入。 所得纤维增强多孔中空纤维膜具有优异的渗透性，分离性能和机械性能。