| 摘要 |
PURPOSE:To increase the rigidity and to obtain a large internal loss, by distributing minute hollow balls and the fibers of high elasticity in a matrix formation within the foamed synthetic resin containing hollow cells inside the resin. CONSTITUTION:The minute hollow balls 2 and the fibers 3 of high elasticity are distributed in a matrix formation within the foamed synthetic resin containing the hollow cells 11. With such composition, the rigidity is greatly increased compared with the increasing rate of the appearent density. At the same time, a large internal loss is obtained owing to the elasticity of the foams within the cells 11 and the slip of the ball 2. |
