| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a humidifier which is excellent in sanitary aspect, easy in maintenance, easy to adjust the humidity, and save the energy consumption. <P>SOLUTION: The humidifier uses raw materials consisting of at least isocyanate composition, diol as chain extender, and polyethylene glycol as polyol composition, and uses a moisture-permeable polyurethane obtained by the reaction of these raw materials for a water permeable membrane. <P>COPYRIGHT: (C)2004,JPO |
