Glycoluril derivatives and their use as stabilizers for...

C - Chemistry – Metallurgy – 07 – D

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C07D 487/22 (2006.01)

Patent

CA 1313873

O.Z. 0050/37955 - 18 - Abstract of the Disclosure: The novel compounds of the general formula I Image (I) where n is from 1 to 70, R1 and R2 independently of one another are each hydro- gen, C1-C6-alkyl, C7-C12-aralkyl, aryl or a carboxylic ester group, or R1 and R2 together may form a tetramethylene or penta- methylene group, R3, R4, R5 and R6 are each alkyl, the radicals X independently of one another are each a direct bond or a bridge member, Y and 2 are each oxygen, sulfur or NR8, R7 is hydrogen, chlorine, bromine, hydroxyl, alkoxy, carboxyl, a carboxylic ester group or unsubstituted or substituted carbamyl and R8 is hydrogen or unsub- stituted or substituted alkyl, and the ammonium salts of these compounds, are very useful as light stabili- zers.

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