| abstract |
Halogen-containing polymers or the recyclates thereof are stabilised by the addition of (a) a halogen-containing polymer or a recyclate thereof; (b) at least one zeolite in the form of sodium, potasssium and/or lithium, in particular at least one zeolite of formula, M2O . Al2O3 . xSiO2 . yH2O, wherein M is Na, K or Li, x is 2 to 12, and y is 1 to 15, with the exception of zeolite A, Na12Al12Si12O48 . 27H2O and clinoptilolite Na6Al6Si30O72 . 2H2O, (c) at least one organic zinc, aluminium or rare earth compound, and/or (d) at least one organotin compound, as described in more detail in claim 1. |