Patent ID: 7252912

Claim:
A polymer composite comprising a base material and a polymer membrane provided on at least a part of said base material, said polymer membrane having at least hydrophilicity, said polymer composite being used in a state exposed to water or a water-based solvent. wherein said base material per se has amino groups exposed at a surface thereof, and said polymer membrane is a resin film formed by photo-crosslinking a photosensitive resin composition consisting essentially of a water-soluble polymer having azido groups as photosensitive groups, wherein when the amino groups present on the surface of the base material and photosensitive groups present in said photosensitive resin composition are irradiated with light, some of the amino groups and some of the photosensitive groups undergo a chemical reaction to form a covalent bond, and wherein said resin film is fixed to said base material by said covalent bond.