Polychromophoric ultraviolet stabilizers and their use in organi

Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants

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260 458N, 260 458A, 260 458NZ, 260 458SN, 260 458NT, 260 458RW, 260307D, 260308B, 106169, 106304R, 10632615, C09K 1520, C08K 535, C07D27782, C07D24918

Patent

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041275012

ABSTRACT:
The invention relates to polychromophoric 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 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.

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patent: 3981822 (1976-09-01), Ownby
patent: 3988295 (1976-10-01), Irick et al.
patent: 4000148 (1976-12-01), Pond et al.
patent: 4020080 (1977-04-01), Irick et al.

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