Benzotriazole ultraviolet stabilizers

Details Benzotriazole ultraviolet stabilizers Benzotriazole ultraviolet stabilizers

1977-01-12

1979-10-23

Coughlan, Jr., Paul M.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D24920

Patent

active

041720814

ABSTRACT:
The invention relates to certain bichromophoric compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of a certain bichromophoric compound 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 such as polymers by adding to the polymer melt or dissolved in the polymer dope, coated on the exterior of the shaped or molded article, film or extruded fiber.

REFERENCES:
patent: 3766205 (1973-10-01), Heller et al.
patent: 4017508 (1977-04-01), Pond

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