Plastics stabilized against ultraviolet radiation

Details Plastics stabilized against ultraviolet radiation Plastics stabilized against ultraviolet radiation

1974-06-10

1976-01-06

Hoke, V. P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 457P, 260 457PS, 260 459NP, 260 4595L, 260 4595S, C08G 600

Patent

active

039311040

ABSTRACT:
Thermoplastic polymers are stabilized against ultra-violet radiation by incorporating therein as a stabilizer a stabilizing amount, e.g., 0.1 to 5% by weight of a tertiary phosphine oxide or sulfide of the general formula: ##EQU1## in which X is oxygen or sulfur and R.sub.1, R.sub.2 and R.sub.3 are each selected from hydroxyalkyl, haloalkyl, carbalkoxyalkyl, acyloxyalkyl, phenylhydroxyalkyl wherein the phenyl radical may be substituted by one or more halogens, and cyanoalkyl wherein the alkyl radical has 1 to 6 carbon atoms.

REFERENCES:
patent: 3269963 (1966-08-01), Ilgemann et al.
patent: 3341625 (1967-09-01), Gillham et al.
patent: 3532668 (1970-10-01), Savides
patent: 3594346 (1971-07-01), Hermann et al.
patent: 3629365 (1971-12-01), Gardner
patent: 3676393 (1972-07-01), Piirma

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