公开(公告)号：US4439322A

公开(公告)日：1984-03-27

申请号：US278570

申请日：1981-06-29

申请人： Takeshi Sonoda ,  Yoshitaka Tanaka ,  Shigenori Takenaka ,  Tatsuo Nogi

发明人： Takeshi Sonoda ,  Yoshitaka Tanaka ,  Shigenori Takenaka ,  Tatsuo Nogi

IPC分类号： C08L33/00 ,  B01D69/08 ,  B01D71/28 ,  B01D71/40 ,  B01D71/80 ,  B01D71/82 ,  C08L33/02 ,  C08L33/04 ,  C08L33/12 ,  C08L33/14 ,  B01D31/00

CPC分类号： B01D69/08 ,  B01D71/40 ,  B01D71/80

摘要： A membrane for microfiltration, ultrafiltration or dialysis comprises a methyl methacrylate copolymer containing about 0.5 to 10 mol % of a monomer having sulfonate groups, and a methyl methacrylate copolymer containing about 0.5 to 10 mol % of a monomer having quaternary nitrogen-containing groups. It is manufactured by mixing those copolymers, dissolving the mixture in a solvent such as dimethylsulfoxide or dimethylformamide, and forming a membrane from a solution of the copolymers by casting or spinning. The membrane is particularly suitable for use in the purification of blood, and its most preferable form is hollow fibers. A method of preparing hollow fibers comprises extruding the copolymer solution through a spinneret having an annular orifice defined by a thin central tube while a liquid or gas is being injected into the central tube, and coagulating the extrusion product.

摘要翻译： 用于微滤，超滤或透析的膜包括含有约0.5-10摩尔％的具有磺酸盐基团的单体的甲基丙烯酸甲酯共​​聚物和含有约0.5-10摩尔％含有季氮含量基团的单体的甲基丙烯酸甲酯共​​聚物。 通过混合这些共聚物，将该混合物溶解在溶剂如二甲基亚砜或二甲基甲酰胺中，并通过浇铸或旋转从共聚物溶液中形成膜制备。 该膜特别适用于血液净化，其最优选的形式为中空纤维。 制备中空纤维的方法包括通过具有由薄中心管限定的环形孔的喷丝头挤出共聚物溶液，同时将液体或气体注入中心管，并使挤出产物凝结。