PURPOSE: To obtain the molding markedly improved in abrasion resistance without detriment to mechanical strengths.

CONSTITUTION: The molding is produced by molding a composition comprising a resin (A) based on a saturated polyester, 5-50 pts.wt., per 100 pts.wt. A, cationically polymerizable compound (B) based on an epoxy resin containing at least two oxirane rings in the molecule, 0.01-20 pts.wt., per 100 pts.wt. B, photopolymerization initiator (C) which releases a Lewis acid catalyst upon ultraviolet irradiation and 5-150 pts.wt., per 100 pts.wt. total of A, B and C, reinforcement and photocrosslinking the obtained molding by irradiating part of the surface of this molding with an ultraviolet radiation.