| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a key pad easy to be recycled and its recycling technology. <P>SOLUTION: This key pad 1 is structured by forming a cross-linking curable resin layer 5 of a cross-linking curable resin, which can be separated from a key pad body 4 by swelling it by a prescribed solvent, on the key pad body 4 of a thermoplastic elastomer. Since the key pad body 4 is made of the thermoplastic elastomer and the cross-linking curable resin layer 5 is provided on the key pad body 4, a defect that an indication layer 6 provided on the surface of the thermoplastic elastomer has low abrasion resistance and is easily defaced is eliminated, and even if the key is repeatedly used, the indication layer 6 is not only easily defaced but also the cross-linking curable resin layer 5 can be easily separated from the key pad body 4 if it is swelled by the solvent. Thereby, the cross-linking curable resin layer 5 and the key pad body 4 of the thermoplastic elastomer can be separately and easily recycled, and a high quality recycled product can be obtained. <P>COPYRIGHT: (C)2003,JPO</p> |
