申请人:Eastman Kodak Company
公开号:US04158658A1
公开(公告)日:1979-06-19
The invention relates to bichromophoric benzoxazole-styrene 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 bichromophoric 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.
本发明涉及一种双色性苯并噁唑-苯乙烯化合物,发现其能够有效地作为紫外线稳定剂。本发明还涉及含有稳定剂量的双色性化合物的紫外降解有机组成物,以防止这种降解。这些稳定剂在聚合物组成物中常用的其他添加剂包括颜料、着色剂、填充剂、增强剂等存在时仍然有效。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被纳入有机组成物中,涂覆在成型品、薄膜或挤出纤维的外部。