| 摘要 |
PROBLEM TO BE SOLVED: To provide a buffer made by reusing rigid polyurethane foam, which is light in weight, shows compressibility and restorability and can soften shock transmission to a product. SOLUTION: The buffer has the rigid polyurethane foam and cork, both being bonded to each other with a urethane-based adhesive. COPYRIGHT: (C)2004,JPO
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