Heterocyclic ester, ultraviolet stabilizers and their use in org

Details Heterocyclic ester, ultraviolet stabilizers and their use in org Heterocyclic ester, ultraviolet stabilizers and their use in org

1978-07-12

1981-02-17

Hoke, V. P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 458SN, 260 458NZ, C08K 534, C08K 535

Patent

active

042514339

ABSTRACT:
The invention relates to heterocyclic ester 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 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 ultraviolet stabilizers may also be incorporated into the organic compositions such as polymers by adding to the polymer salt or dissolved in the polymer dope, coated on the exterior of the shaped or molded article, film or extruded fiber.

REFERENCES:
patent: 3957813 (1976-05-01), Irick et al.
patent: 3981822 (1976-09-01), Ownby
patent: 4000148 (1976-12-01), Pond et al.
patent: 4017508 (1977-04-01), Pond
patent: 4116928 (1978-09-01), Irick, Jr. et al.

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