| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly durable blade member by preventing unusual sound. SOLUTION: The blade member is formed from two layers, which are an edge layer abutting on a body to be contacted, and a back layer formed on the back of the edge layer. The edge layer is formed from a polyurethane member prepared by curing and molding a polyurethane composition containing at least a polyol, an isocyanate compound, and a crosslinking agent. The back layer is formed from a polyurethane member prepared by blending 1 to 30 pts.mass of thin-plate-like inorganic filler having a specific gravity of 2.0 or greater and an aspect ratio of 3 or greater with 100 pts.mass of a polyurethane composition containing at least a polyol, an isocyanate compound and a crosslinking agent, and molding the resulting blend. COPYRIGHT: (C)2011,JPO&INPIT
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