| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated antifogging film which is composed of an antifogging composition layer (A) and a transparent support layer (B) and exerts antifogging performance, water resistant performance, adhesion performance, optical performance, mechanical strength and their persistency in an antifogging measure for e.g. window glasses, lenses, mirrors and optical sensors.SOLUTION: A laminated antifogging film consists of an antifogging composition layer (A) obtained by reacting a copolymer having isocyanate groups and obtained by copolymerization of an isocyanate ethyl(meth)acrylate, a specified N-substituted alkyl(meth)acrylamide and (meth)acrylate monomer with a polyol of a hydroxyl value of 150-650 mgKOH/g and having a water absorption characteristic of 1-100 g/mand a transparent support layer (B). The laminated antifogging film exerts higher antifogging performance owing to its excellent water absorption and also has excellent water resistant performance, adhesion performance, optical performance, mechanical strength and their persistency meeting practical requirements. |
