Selective permeability membranes and procedures for obtaining them

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专利权人:

TORAY INDUSTRIES; INC.

发明人:

Kozawa, Hidetoshi,Itagaki, Ichiro,Nishikawa, Kenji,Tanaka, Kazumi

申请号：

ES96304795

公开号：

ES2181852T5

申请日:

1996.06.28

申请国别(地区):

ES

年份:

2020

代理人:

摘要：

A membrane material comprises a hydrophobic and a hydrophilic polymer. The hydrophilic polymer consists of 10-50 wt% of a low molecular weight component (molecular weight <； 100,000) and 90-50 wt% of a high molecular weight component (molecular weight &ge； 100,000). The membrane material may be subjected to an insolubilization treatment to provide a permselective membrane suitable for use in dialysis. The membrane material may have an overall mass transfer coefficient (Ko), for a Stokes' radius of at least 30 ANGSTROM (as determined by a diffusion test using dextran), of &ge； 0.025 cm/min and a permeability to albumin of &le； 4%.

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