| 摘要 |
PURPOSE: A flame retardant polymer composition is provided to obtain good light stability and flame retardancy to a thermoplastic polymer by comprising a certain flame retardant containing a sterically hindered amine of the hydrocarbyloxyamine or hydroxyhydrocarbyloxyamine class and optionally further stabilizers. CONSTITUTION: The process for imparting light stability and flame retardancy to a thermoplastic polymer(a) by addition of a flame retardant(b) and a sterically hindered amine(c), is characterized in that the flame retardant(b) is selected from the group consisting of b1) melamin based flame retardants and/or ammonium polyphosphate, b2) bis-(hexachlorocyclopentadieno)cyclooctane, b3) tris-(2,3-dibromopropyl)-isocyanurate, b4) ethylene-bis-tetrabromophthalimide, b5) 1,2,5,6,9,10-hexabromo-cyclo-dodecan, b6) ethane-1,2-bis(pentabromophenyl); and the sterically hindered amine(c) is selected from sterically hindered amine light stabilizers of the hydrocarbyloxyamine and of the hydroxyhydrocarbyloxyamine class, provided that the flame retardant is not (b4) if the sterically hindered amine is of the hydroxyhydrocarbyloxy class.
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