Bichromophoric benzoxazole ultraviolet stabilizers

Details Bichromophoric benzoxazole ultraviolet stabilizers Bichromophoric benzoxazole ultraviolet stabilizers

1977-03-28

1979-10-02

Coughlan, Jr., Paul M.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D26356

Patent

active

041698371

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: 3551443 (1970-12-01), Duennenberger et al.

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