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| - As the insulating layers, thermoplastic resins ,nay be used such as polyethylene, vinyl chloride resin, polypropylene, styrene resin, ABS resin, polyvinyl alcohol, acryl resin, acrylonitrile-styrene resin, vinylidene chloride resin, AAS (ASA) resin, AES resin, cellulose derivative resin, thermoplastic polyurethane, polyvinyl butyral, poly-4-methylpentene-1, polybutene-1, rosin ester resin, etc.
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