| abstract |
This tackifying composition contains, with respect to 100 parts by mass of a block copolymer or a hydrogenated product thereof, at least one selected from 1-1000 parts by mass of tackifying resins and 1-1000 parts by mass of plasticizing agents. The block copolymer includes a polymeric block (A) and a polymeric block (B), wherein the polymeric block (B) has a structural unit that is derived from a conjugated diene compound and that includes, in a main chain, at least one alicyclic backbone (X) represented by formula (X). |