| abstract |
(57) [Abstract] [Purpose] To obtain a sheet molding compound having excellent flexibility, which can be applied to the production of exterior body panels for vehicles. [Composition] Unsaturated polyester resin, urethane prepolymer with terminal isocyanate group, fiber reinforced material, thickener, A flexibility modifier is added to a sheet molding compound (SMC) molding material containing a free radical polymerization catalyst, an inert filler, a phase stabilizer, a release agent, a linear oligomer and the like. The flexibility modifier comprises polystyrene-polybutadiene-polystyrene, polystyrene-polyisoprene-polystyrene, polystyrene-ethylene / butylene-polystyrene, or any mixture thereof, in the raw state from about 3 to about 20% by weight of the final composition. Is preferably present in an amount of |