| 摘要 |
PURPOSE: To obtain a low-viscosity adhesive, excellent in low-temperature adhesive strength and having a high adhesive strength and high tack. CONSTITUTION: This hot-melt adhesive contains (A) a thermoplastic block copolymer containing a block copolymer of the formula A1 -B-A2 [A1 and A2 are each an aromatic vinyl copolymer block having a different molecular weight; B is a conjugated diene polymer or its hydrogenated substance], (B) a tackifier, (C) a diluent and (D) a stabilizer. The contents of the components based on the whole hot-melt adhesive composition are 10-40wt.% component (A), 30-70wt.% component (B), <=30wt.% component (C) and 0.1-4wt.% component (D). |
