Polymers stabilized against degradation by ultraviolet radiation

Details Polymers stabilized against degradation by ultraviolet radiation Polymers stabilized against degradation by ultraviolet radiation

1979-02-26

1980-12-23

Czaja, Donald E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 458R, 260 4585R, 260 459R, 260 459NC, C08K 516

Patent

active

042409543

ABSTRACT:
Polymers are stabilized against ultraviolet degradation by the use of urea or thiourea derivatives of the formula: ##STR1## Also disclosed is the use of the above compound with specific hydroxybenzoates or titanium dioxide.

REFERENCES:
patent: 2766219 (1956-10-01), Beaver et al.
patent: 2894933 (1959-07-01), Schweitzer
patent: 2960488 (1960-11-01), Tamblyn et al.
patent: 3211692 (1965-10-01), Hopkins et al.
patent: 3511802 (1970-05-01), Newland et al.
patent: 3681431 (1972-08-01), Dexter et al.
Beaver et al., J. Am. Chem. Soc., vol. 79, pp. 1236-1245 (1975).

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