Bichromophoric benzotriazole-benzoxazole ultraviolet stabilizers

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

1979-04-16

1981-06-02

Daus, Donald G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

525 2, 525 6, 260 458NT, 260 458NZ, 260 4595E, C07D41310

Patent

active

042713072

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: 3864354 (1975-02-01), Irick, Jr. et al.
patent: 4076687 (1978-02-01), Irick, Jr. et al.

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