2,3,5-Trialkylsubstituted hydroxybenzyl isocyanurates

Details 2,3,5-Trialkylsubstituted hydroxybenzyl isocyanurates 2,3,5-Trialkylsubstituted hydroxybenzyl isocyanurates

1975-07-23

1977-09-20

Ford, John M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

260 458NT, C07D25134

Patent

active

040496546

ABSTRACT:
The compounds are 2,3,5-trialkylsubstituted hydroxy benzyl isocyanurates having the formula ##STR1## where R.sub.a is a 2,3,5-trialkylsubstituted hydroxybenzyl group of the formula II or hydrogen, and R.sub.b is a 2,3,5-trialkylsubstituted hydroxybenzyl group of formula II ##STR2## wherein R.sup.1 and R.sup.2 are alkyl or cycloalkyl groups, and R.sup.3 is hydrogen or alkyl
One method for making the compounds of this invention is by reacting a 2,3,6-trialkyl-4-(dimethylamino)phenol with cyanuric acid.
The compounds are useful as stabilizers of organic materials, especially polyolefins, which deteriorate upon exposure to light and heat.

REFERENCES:
patent: 3531483 (1970-09-01), Gilles
patent: 3598815 (1971-08-01), Gilles
patent: 3669961 (1972-06-01), Gilles
patent: 3669962 (1972-06-01), Smith et al.
patent: 3723427 (1973-03-01), Susi

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