The invention relates to multichromophoric compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of the multichromophoric composition to prevent such degradation. These stabilizers are effective in the presence of other additives commonly employed in polymeric compositions including, for example, pigments, colorants, fillers, reinforcing agents and the like. These ultraviolet stabilizers may also be incorporated into the organic compositions in the polymer melt or dissolved in the polymer dope, coated on the exterior of the molded article, film or extruded fiber.
本发明涉及多色团化合物,发现其有效地作为紫外线稳定剂。本发明还涉及含有稳定剂量的多色团化合物的紫外线可降解有机组成物,以防止这种降解。这些稳定剂在聚合物组成物中存在其他常用添加剂的情况下有效,包括
颜料、
染料、填料、增强剂等。这些紫外线稳定剂也可以在聚合物熔融中或溶解在聚合物溶液中,涂覆在成型物、薄膜或挤出纤维的外部中。