| 摘要 |
<p>A low-resilience polyurethane foam having excellent air permeability which is obtained by foaming raw materials for a polyurethane which comprise a polyol ingredient, a polyisocyanate ingredient, a catalyst, and a blowing agent and then subjecting the foam to a film removal treatment. This polyurethane foam has a glass transition point around room temperature and a cell number of 25 PPI or smaller. Since the polyurethane foam has a cell number of 25 PPI or smaller and hence a large cell diameter and has undergone a film removal treatment, it has excellent air permeability. When the human body is in contact with the foam, unpleasant feelings such as "stuffy feeling" are lessened because the contact points are scattered. The foam further has satisfactory drainability and excellent rapid-drying properties due to the large cells.</p> |
