| abstract |
A block copolymer having (meth)acryloyl groups in sidenchains, which copolymer is a ring-opening addition productnof (meth)acryloyl-group-containing carboxylic acid to epoxyngroups of a block copolymer obtained through epoxidation ofndouble bonds derived from a conjugated diene compoundncontained in a base block copolymer formed of a polymernblock of an aromatic vinyl compound and that of a conjugatedndiene compound; as well as adhesive compositions, sealantncompositions, coating compositions, and sizing compositions. |