申请人:Eastman Kodak Company
公开号:US04029670A1
公开(公告)日:1977-06-14
The invention relates to bichromophoric heterocyclic ester compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of these bichromophoric heterocyclic ester compositions 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.
本发明涉及一种具有双色性杂环酯化合物的紫外线稳定剂,已发现其具有高效的紫外线稳定性。本发明还涉及含有这些双色性杂环酯化合物的稳定剂量的紫外线降解有机组合物,以防止这种降解。这些稳定剂在聚合物组合物中常用的其他添加剂存在下也具有高效,包括颜料、着色剂、填充剂、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。