| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive composition easily processable at low temperatures and excellent in pressure-sensitive adhesive performances such as holding force and tackiness. Ž<P>SOLUTION: The composition comprises: (A) 100 pts.wt. of a block copolymer composition composed of (a) 5-50 wt.% of a block copolymer composed of at least two monoalkenyl aromatic compound polymer block and at least one conjugate diene polymer block, (b) 50-95 wt.% of a block copolymer composed of at least one monoalkenyl aromatic compound polymer block and at least one conjugate diene polymer block; and (B) 20-400 pts.wt. of a tackiness imparting resin, wherein the peak molecular weights of (a) and (b) are at 60,000-120,000 and 10,000-60,000 in terms of standard polystyrenes; the content of whole monoalkenyl aromatic compounds is 21-40 wt.%; and the viscosity in 15% toluene solution is 10-40 cps. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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