Stabilization of light-sensitive polymers

Details Stabilization of light-sensitive polymers Stabilization of light-sensitive polymers

1977-11-21

1979-12-04

Cockeram, H. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

546 14, 106169, 106163R, C07D21118, C08K 534

Patent

active

041771869

ABSTRACT:
4-Siloxy-derivatives of sterically hindered piperidines are good light-stabilizers for organic polymers, especially for polyolefins. The stabilizers are added in an amount of from 0.01 to 5% by weight, preferably 0.02 to 1% by weight based on the polymer. The new compounds are obtainable by O-silylation of the corresponding 4-hydroxypiperidines.

REFERENCES:
patent: 3513170 (1970-05-01), Murayama et al.
patent: 3840494 (1974-10-01), Murayama et al.
Shapiro et al., Polymer Science USSR, vol. A14, (1973), pp. 3034-3043.

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