| abstract |
The invention relates to stabilizer systems, containing at least: a) a perchlorate salt; b) at least one or more compounds from the group consisting of carbamides, indole derivatives and enamines of formula (I), wherein n = 1 or 2 and X = O or NR<1>; n = 3 - 6 and X = O; R<1> = H, C1-C4-alkyl, C2-C6-alkenyl, C6-C10-aryl, C7-C18-alkaryl or C7-C18-aralkyl; R<2> (if n = 1) = C1-C22-alkyl, C2-C22-alkenyl or aryl, preferably phenyl, optionally substituted with up to 3 hydroxy, C1-C4-alkoxy or C1-C9-alkyl; or R<2> (if n = 2 - 6) = linear or branched C1-22-alkylene, optionally interrupted by one or more O or S atoms, wherein R <2> (if n = 3) can also be a C2-C3-alkyl trisubstituted isocyanurate; if X = NH R<2> can also be H. Said stabilizer systems are suitable for stabilizing halogen-containing polymers, more particularly PVC. |