Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1978-01-09
1979-02-27
Marquis, Melvyn I.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 458NZ, 260 458SN, 260 458RW, 260 458A, 548196, 548198, 548199, 548202, C08K 534, C08K 535, C08K 547
Patent
active
041418840
ABSTRACT:
The invention relates to heterocyclic ester compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing an amount of a heterocyclic ester 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 ultravoilet stabilizers may 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: 2778825 (1957-01-01), Melamed
patent: 3640928 (1972-02-01), Murayama et al.
patent: 3840494 (1974-10-01), Murayama et al.
patent: 4014887 (1977-03-01), Randell et al.
Irick, Jr. Gether
Ownby James C.
Wang Richard H. S.
Eastman Kodak Company
Marquis Melvyn I.
Reece III Daniel B.
Tootle Clyde L.
White R. A.
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