| 摘要 |
PROBLEM TO BE SOLVED: To provide brush pieces for constituting a washing brush capable of washing the object to be washed such as an automobile and a road without damaging the same. SOLUTION: A washing brush is constituted by implanting a large number of the brush pieces. The brush pieces consist of cross-linked polyolefin resin foam, and have a static friction coefficient of 0.90 to 1.15, a tensile strength of 0.5 to 2.5 MPa, and an elongation of≤250%, thus can smoothly remove the stain on the surface of the object to be washed such as a car body and a road without damaging the object, and exhibit excellent washing performance over a long period of time. COPYRIGHT: (C)2005,JPO&NCIPI
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