Polychromophoric heterocyclic ultraviolet stabilizers and their

Details Polychromophoric heterocyclic ultraviolet stabilizers and their Polychromophoric heterocyclic ultraviolet stabilizers and their

1974-11-14

1976-12-28

Gallagher, R. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

106176, 427164, 252300, 260 458N, 260 458NZ, 260307D, 260308B, 26032614R, C07D26362, C07D20914, C07D27766

Patent

active

040001482

ABSTRACT:
The invention relates to polychromophoric heterocyclic 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 these polychromophoric heterocyclic ester compositions 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: 2715630 (1955-08-01), Sartori
patent: 2968856 (1961-01-01), Allen
patent: 3496188 (1970-02-01), Wirth
patent: 3673202 (1972-06-01), Orlando et al.
patent: 3689425 (1972-09-01), Crounse
patent: 3821240 (1974-06-01), Agbli et al.

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