Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1978-02-21
1979-01-02
Czaja, Donald E.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
106176, 260 458SN, 260800, 260864, C08K 534, C08K 546, C08K 547
Patent
active
041327047
ABSTRACT:
The invention relates to bis-heterocyclic benzoate compounds which have been found to be extremely effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing an amount of a bis-heterocyclic benzoate 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 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: 3324077 (1967-06-01), Bloom et al.
patent: 3338865 (1967-08-01), Kopacki
patent: 3676449 (1972-07-01), Song
patent: 3939115 (1976-02-01), Wang et al.
patent: 4020041 (1977-04-01), Irick, Jr. et al.
Irick, Jr. Gether
Kelly Charles A.
Czaja Donald E.
Eastman Kodak Company
Reece III Daniel B.
Thomsen J. Frederick
White R. A.
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