Oblon, Fisher, Spivak, McClelland & Maier
Glycoluril derivatives and their use as stabilizers for polymers
 The novel compounds of the general formula I ##STR1## where n is from 1 to 70, PA1 R.sup.1 and R.sup.2 independently of one another are each hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.7 -C.sub.12 -aralkyl, aryl or a carboxylic ester group, or PA1 R.sup.1 and R.sup.2 together may form a tetramethylene or pentamethylene group, PA1 R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are each alkyl, the radicals PA1 X independently of one another are each a direct bond or a bridge member, PA1 Y and Z are each oxygen, sulfur or NR.sup.8, PA1 R.sup.7 is hydrogen, chlorine, bromine, hydroxyl, alkoxy, carboxyl, a carboxylic ester group or unsubstituted or substituted carbamyl and R.sup.8 is hydrogen or unsubstituted or substituted alkyl, and the ammonium salts of these compounds, are very useful as light stabilizers. 
BASF Aktiengesellschaft
C C C C
C07D C08K C07D C08G
inventional inventional inventional inventional
Peter Reinhard Alexander Hubert
Neumann Helwig Aumueller Trauth