| 摘要 |
PURPOSE:To obtain the titled molding which has excellent light resistance and gives a dyed article having excellent fastness to light, by molding a polyester contg. a hindered phenolic antioxidant and dyeing the resulting molding with a disperse dye. CONSTITUTION:A polyester contg. a hindered phenolic antioxidant having a b.p. (sublimation point) of 200 deg.C or above and formula I or II (wherein n is 1-18; m is 1-4; R is a group composed of C, H, O, P, Si, etc. and contg. no N) obtd., e.g., by mixing 0.01-1.0wt% said antioxidant with a polymn. mixture of a polyester composed of at least 80% butylene terephthalate residue before the completion of the polymn. and then polymerizing the mixture, is molded through a nozzle, and the molding is dyed with a disperse dye.
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