Coating compositions stabilized against damage by light, heat and oxygen

   
   

Coatings comprising A) a binder based on an organic polymer and B) as stabilizer against damage by light, heat and oxygen, a 2-(2'-hydroxyphenyl)-1,3-pyrimidine of the formula I ##STR1## in which the radicals R.sup.1 to R.sup.6 are as defined in claim 1 have an outstanding resistance to the damaging effects of light, oxygen and heat. Compounds of the formula Ib defined in claim 18 are suitable in general for the stabilization of organic material.

I rivestimenti che contengono A) un raccoglitore basato su un polimero organico e B) come stabilizzatore contro danni da luce, da calore e da ossigeno, un 2-(2'-hydroxyphenyl)-1,3-pyrimidine del ## del ## STR1 di formula I in cui i radicali R.sup.1 a R.sup.6 sono come definiti nella rivendicazione 1 hanno una resistenza eccezionale agli effetti offensivi di luce, di ossigeno e di calore. I residui della formula Ib definito nella rivendicazione 18 sono adatti in generale per la stabilizzazione di materiale organico.

 
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