Polychromophoric dibenzoxazole ultraviolet stabilizers and their

Details Polychromophoric dibenzoxazole ultraviolet stabilizers and their Polychromophoric dibenzoxazole ultraviolet stabilizers and their

1977-09-01

1979-11-13

Rush, Raymond V.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549 6, 549 51, 260 458RW, 549 58, 548261, 260 458A, 548224, 548156, 260 458N, 548150, 548159, 260 458NT, 548113, 260 458NZ, 26032615, 26032614R, 26034622, 548326, 548328, C07D26362

Patent

active

041743210

ABSTRACT:
The invention relates to polychromophoric dibenzoxazole 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 polychromophoric dibenzoxazole 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: 3458506 (1969-07-01), Bloom et al.
patent: 3864354 (1975-02-01), Irick et al.

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