| abstract |
A gamma -ray-sterilizable hydrophilic porous material has been found which includes a continuous layer made of a synthetic polymer compound forming a porous substrate and a hydrophilic and gamma -ray-resistant polymer supported on at least part of the surface of the porous substrate in an amount not less than 5% by weight, based on the porous substrate. The hydrophilic porous material has an average pore diameter in the range of 0.02 to 20 mu m, a porosity in the range of 10 to 90% and a wall thickness in the range of 10 mu m to 5.0 mm. |