| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a moisture-proof material superior in linearity on adhesion. <P>SOLUTION: The present invention relates to a moisture-proof material having a polyurethane film substrate and an adhesive layer formed on at least one surface of the substrate, which material shows a tensile strength of not less than 7,500 psi, and an elongation at break of not less than 550%. <P>COPYRIGHT: (C)2013,JPO&INPIT |
