| 摘要 |
Improved carbonate polymer compositions are prepared comprising specific amounts of one or more UV absorbing compounds selected from two or more of the following groups: a hydroxybenzotriazole derivative, a hydroxyphenyltriazine derivative, or a cyanoacrylic acid ester compound wherein all UV absorbing compounds have a molecular weight of at least 400 g/mol. The carbonate polymer compositions according to the invention can be used to prepare molded, shaped or otherwise fabricated articles having improved combinations of protection against UV radiation, color and color stability with reduced plate-out behavior during processing. The compositions are especially suitable for use in extrusion, blow molding, thermoforming, and injection molding. |
