Benzotriazole ortho-ester ultraviolet stabilizers

Details Benzotriazole ortho-ester ultraviolet stabilizers Benzotriazole ortho-ester ultraviolet stabilizers

1975-10-28

1977-08-09

Hoke, V. P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C08K 534, C08K 549

Patent

active

040410110

ABSTRACT:
The invention relates to benzotriazole ortho-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 the benzotriazole ortho-ester 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: 3004896 (1961-10-01), Heller et al.
Polymer Engineering and Science, May, 1975, vol. 15, No. 5, pp. 321 to 338.

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