C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 65/38 (2006.01) A61L 31/04 (2006.01) A61L 33/00 (2006.01) A61L 33/06 (2006.01) A61M 1/16 (2006.01) C08G 75/23 (2006.01) C08L 1/12 (2006.01) C08L 71/00 (2006.01)
Patent
CA 2306538
A medical material composed of a poly(alkyl aryl ether)sulfone copolymer (A) and a thermoplastic polymer (B), such as cellulose triacetate, and being used in contact with the blood, wherein the concentration of the copolymer (A) is at least 40 % by weight at least near the surface of a part having a surface to be used in contact with the blood and the copolymer (A) is a specified polysulfone bearing fluorine atoms and polyalkyl ether units and which is suitable for a hollow fiber membrane for artificial kidneys, and the like.
La présente invention concerne un matériau médical composé d'un copolymère (A) de poly(alkyl-aryl-éther)sulfone et d'un polymère thermoplastique (B), tel que le triacétate de cellulose, et s'utilisant en contact avec le sang. En l'occurrence, la concentration massique du copolymère (A) est de 40% au minimum, au moins au voisinage de la surface d'une partie dont une surface doit s'utiliser en contact avec le sang. En outre, le copolymère (A), qui est un polysulfone spécifié portant des atomes de fluor ainsi que des unités polyalkyl-éther, convient pour les membranes à fibres creuses, notamment celles destinées aux reins artificiels.
Kawaguchi Takeyuki
Kuwahara Hiroaki
Ohmori Satoru
Borden Ladner Gervais Llp
Teijin Limited
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