| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive tape generating little contamination to an adherend, attaining compatibility between adhesive power and peelability, and producible by coextrusion molding. <P>SOLUTION: The pressure-sensitive adhesive tape includes a pressure-sensitive adhesive layer and a base material layer, wherein: the pressure-sensitive adhesive layer contains an amorphous propylene-(1-butene) copolymer polymerized by using a metallocene catalyst; a weight-average molecular weight (Mw) of the propylene-(1-butene) copolymer is ≥200,000; a molecular weight distribution (Mw/Mn) of the propylene-(1-butene) copolymer is ≤2; and the base material layer contains an ethylene-vinyl acetate copolymer. <P>COPYRIGHT: (C)2012,JPO&INPIT |
