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Bichromophoric benzotriazole-benzoxazole ultraviolet stabilizers and their use in organic compositions
Bichromophoric benzotriazole-benzoxazole ultraviolet stabilizers and their use in organic compositions
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机译:双色苯并三唑-苯并恶唑紫外线稳定剂及其在有机组合物中的用途
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摘要
The invention relates to bichromophoric benzotriazole- benzoxazole 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.
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