| abstract |
The present invention relates to a process for stabilizing polyols and to mixtures comprising polyols and stabilizers. The compounds of formula (I) or (II) below are used as stabilizers. <Formula I> <Formula II> Where n is 1, 2, 3 or 4, m is 1, 2 or 3, p is 2, Q is sulfur or C 1 -C 4 -alkylene, R 1 is each independently C 1 -C 8 -alkyl or C 1 -C 8 -alkoxy, independently of other radicals R 1 which may be present, Wherein at least one ortho position of the two phenyl rings in formula (II) or the phenyl rings in formula (I) must be substituted with secondary or tertiary radicals. |