Bichromophoric benzotriazole-benzoxazole ultraviolet stabilizers

Details Bichromophoric benzotriazole-benzoxazole ultraviolet stabilizers Bichromophoric benzotriazole-benzoxazole ultraviolet stabilizers

1976-08-16

1978-02-28

Rzucidlo, Eugene C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 458NZ, 260 4595E, 260307D, 260308B, C08K 534

Patent

active

040766870

ABSTRACT:
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.

REFERENCES:
patent: 3072585 (1963-01-01), Milionis et al.
patent: 3629191 (1975-12-01), Heller et al.
patent: 3864354 (1975-02-01), Irick, Jr. et al.
patent: 3936305 (1976-02-01), Hiraiski et al.

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