Stabilizing system for pvc stabilizing.

Mixture of stabilizers for the stabilization of chlorinated polymers comprising at least a) an alkanolamine of the formula (I) b) an uracil of the formula (II) where for the alkanolamine of the formula (I) means x = 1, 2 or 3; y = 1, 2, 3, 4, 5 or 6; n = 1-10; R1, R2 = independently H, alkyl with 1 to 22 carbon atoms, - [- (CHR3a) and-CHR3b- O-] nH, - [- (CHR3a) and-CHR3b-O-] nCO-R4, alkenyl with 2 to 20 carbon atoms, acyl with 2 to 18 carbon atoms, cycloalkyl with 4 to 8 carbon atoms, which may be substituted with OH in beta aryl position with 6 to 10 carbon atoms, alkaryl with 7 to 10 carbon or aralkyl atoms with 7 to 10 carbon atoms, or if x = 1, R1 and R2 can additionally form, together with the N, a closed ring of 4 to 10 links consisting of carbon atoms, and if necessary up to two heteroatoms, or if x = 2, R1 may additionally represent alkylene with 2 to 18 carbon atoms, which may be substituted with OH in both beta carbon atoms and / or interrupted by one or more O atoms and / or one or more NR2 groups, or substituted tetrahydro-dicyclo-pentadienyl dihydroxy, substituted ethylcyclohexanylene dihydroxy, 4, 4 '' '' - (bisphenol-A-dipropyl ether) substituted dihydroxy, Isophoronylene, dimethylcyclohexanylene, dicyclohexylmethanylene or 3, 3 '' '' - dimethyldicyclohexylmethanylene, and if x = 3, R1 may additionally represent (tri-N-propylisocyanurate) triyl substituted trihydroxy.