| abstract |
This invention is to provide moisture permeable film with good moisture-penetrability and limpness, which could be used for manufacture of fiber product and the moisture permeable film is hard to lowering surface quality caused by becoming fluffy. This invention relates to moisture permeable film obtained by curing reactive polyurethane hot melt resin compound which contains reactive urethane prepolymer (D) obtained by a reaction of (metha) acrylate with hydroxyl group and 10% to 90% of isocyanate group of urethane prepolymer, (metha) acrylate (E), and photopolymerizing primer (F); wherein urethane prepolymer with isocyanate group of 10% to 90% is obtained by a reaction of polyol (A) containing polyesterpolyol(a-1) obtained by a reaction of polyol, which is obtained by alkylene oxide added into bisphenol A, and polycarboxylic acid, solid polyesterpolyol(a-2) at normal temperature, and polyoxyethylene glycol(a-3) having number average molecular weight of 1000 to 25000, and polyisocyanate(B) |