Stabilizer system and its use for stabilizing styrene polymers

Details Stabilizer system and its use for stabilizing styrene polymers Stabilizer system and its use for stabilizing styrene polymers

1975-12-05

1978-08-29

Hoke, V. P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

252404, 252407, 260 458N, 260 4585B, 260 4585V, 260 458NT, 260 4595F, 260 459NC, C08K 534

Patent

active

041103041

ABSTRACT:
Stabilizer system consisting of
(a) at least one sterically hindered cyclic amine of the formula I ##STR1## in which q is 1 or 2, X represents an organic grouping which complements the nitrogen-containing ring to give a 5-membered, 6-membered or 7-membered ring, R.sub.1 and R.sub.2 represent methyl or together represent --(CH.sub.2).sub.5 --, R.sub.3 represents methyl, R.sub.4 represents alkyl with 1-5 carbon atoms or together with R.sub.3 represents the radicals --(CH.sub.2).sub.4 --, --(CH.sub.2).sub.5 -- ##STR2## and, if q is 1, Y denotes hydrogen, --O.multidot., hydroxyl alkyl, substituted alkyl, alkenyl, alkinyl, aralkyl, substituted aralkyl or acyl or, if q is 2, Y denotes alkylene, alkenylene, alkinylene, cycloalkylene or aralkylene, and
(b) at least one co-stabilizer for stabilizing plastics.

REFERENCES:
patent: 3847930 (1974-11-01), Randell et al.
patent: 3899491 (1975-08-01), Ramey et al.
patent: 3939168 (1976-02-01), Cook
patent: 3954779 (1976-05-01), Smith
patent: 3960809 (1976-06-01), Ramey

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