| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tacky adhesive composition excellent in tackifying properties, good in performance balance, and further having solubility, heating stability, and coating performance. <P>SOLUTION: The tacky adhesive composition comprises: 100 pts.mass of a block copolymer; 10 to 100 pts.mass of a resin; 20 to 300 pts.mass of a tackifier; and 1 to 150 pts.mass of a softener. The block copolymer contains a block copolymer (1) containing: a polymer block (A) consisting mainly of at least two vinyl aromatic monomer units; and a polymer block (B) consisting mainly of a conjugated diene monomer unit. The resin consists mainly of a vinyl aromatic compound having a weight average molecular weight of 1,000 to 9,000 and a molecular weight distribution of 1.02 to 2.0. <P>COPYRIGHT: (C)2013,JPO&INPIT |
