Patent ID: 11338562

Abstract:
It is a main object of the present invention to impart higher antifogging properties to the hydrophilic material formed of a crosslinked resin, having a surface enriched with hydrophilic groups, previously proposed by the inventors. The laminate of the present invention includes a water absorbing layer (B) and a hydrophilic layer (A) provided in this order on a substrate, wherein the hydrophilic layer (A) is formed of a crosslinked resin having an anionic, cationic or nonionic hydrophilic group, and has a gradient of hydrophilic groups (intensity of hydrophilic group on surface of the hydrophilic layer (A)/intensity of hydrophilic group at ½ of thickness of the hydrophilic layer (A)) of not less than 1.1; and the water absorbing layer (B) is formed of a crosslinked resin having a water absorption rate per unit mass (g) of in the range of 5 to 500 wt %.