Bichromophoric benzoxazole-styrene ester and amide ultraviolet s

Details Bichromophoric benzoxazole-styrene ester and amide ultraviolet s Bichromophoric benzoxazole-styrene ester and amide ultraviolet s

1976-08-16

1977-12-13

Cockeram, H.S.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252380, 252401, 252403, 260 458NZ, 260307D, 106176, 542400, 542454, C08K 515, C08K 534, C07D26356, C09K 1500

Patent

active

040628000

ABSTRACT:
The invention relates to bichromophoric benzoxazole-styrene ester and amide 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 bichromophoric 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: 2995540 (1961-08-01), Duennenberger et al.
patent: 3006959 (1961-10-01), Armitage et al.
patent: 3049509 (1962-08-01), Hardy et al.
patent: 3206428 (1965-09-01), Stanley
patent: 3551443 (1970-12-01), Duennenberger et al.
patent: 3565890 (1971-02-01), Tanaka
patent: 3586673 (1971-06-01), Bloom et al.
patent: 3607828 (1971-09-01), Hussey
patent: 3660125 (1972-05-01), Buell
patent: 3684764 (1972-08-01), Buell
patent: 3936419 (1976-02-01), Wang et al.
patent: 3957813 (1976-05-01), Irick et al.
patent: 3962055 (1976-06-01), Pacifici et al.

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