Polychromophoric heterocyclic ultraviolet stabilizers

Details Polychromophoric heterocyclic ultraviolet stabilizers Polychromophoric heterocyclic ultraviolet stabilizers

1975-09-19

1977-06-14

Coughlan, Jr., Paul M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

106176, 260 458NT, 260 458NZ, 260304R, 260307D, 2603092, 26032613R, C07D24920

Patent

active

040296709

ABSTRACT:
The invention relates to bichromophoric 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 bichromophoric 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: 3936418 (1976-02-01), Pond et al.
patent: 3954706 (1976-05-01), Wang et al.

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