| 摘要 |
<p>PURPOSE:The titled composition having improved light fastness, prepared by adding a specified piperidine light stabilizer to a synthetic resin. CONSTITUTION:A synthetic resin composition prepared by adding 0.001-5pts.wt. compound represented by, for example, formula I , wherein X is H, a group of formula II, Y1 is carbonyl, a diacyl, dicarbamoyl or the like, A1 is H, an alkyl, an acyl, a group of formula III or the like, B1 is a group of formula IVor the like, R1 is H, an alkyl, oxy, or an acyl, m is 0-10 and n is 1-20, with the proviso that the group of formula III may be an acyl when n=1. Incorporation of a nonane or undecane derivative containing a 2,2,6,6-tetramethyl-4-piperidylamino group makes it possible to obtain a synthetic resin composition having improved light fastness.</p> |
