| abstract |
(57) [Summary] [Structure] A block copolymer containing a block of a monoalkenyl aromatic compound and a block of a polyconjugated diene which may be optionally hydrogenated, and a resin for modifying a poly (monoalkenyl aromatic) block. And any poly (conjugated diene) A vehicle underbody coating composition comprising a block modifying resin, a plasticizer, a filler, a stabilizer, and / or a fire retardant. [Effect] It shows very good resistance to chipping, heat and corrosion, and can be sufficiently reused without forming toxic compounds and other dangerous compounds. |