| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cushion material comfortable to sit on and having high performance in relieving deviation force which is one of bedsore causing factors. <P>SOLUTION: The cushion material is formed of at least two-layer structure using material which is less than 0.35 MPa in the modulus of shearing elasticity at 25°C when measured in a compressed state to a thickness of 1 mm so that an apparent expansion ratio in the thickness direction of a foam is 1, using a dynamic viscoelasticity measuring device, and laminating the material on at least one layer of another member. <P>COPYRIGHT: (C)2012,JPO&INPIT |
