Novel combinations of ultraviolet stabilizers and their use in o

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

Patent

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Details

252392, 260 458SN, 260 458NZ, 260 458N, 260 458RW, 260 458NT, 260 459R, C09K 1530, C09K 1528, C09K 1516

Patent

active

039818225

ABSTRACT:
The invention relates to combinations of compounds which have been found to produce more effective ultraviolet stabilization. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of these ultraviolet stabilizer combinations to prevent such degradation. These stabilizer combinations 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 stabilizer combinations 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: 3206428 (1965-09-01), Stanley
patent: 3380981 (1968-04-01), Dressler et al.
patent: 3425804 (1969-02-01), Flinn et al.
patent: 3493510 (1970-02-01), Chao
patent: 3720616 (1973-03-01), Randell et al.
patent: 3723428 (1973-03-01), Song

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