Novel cycloalkylidene disphenol phosphites.

摘要

Novel compounds of the formula I …… in which … …  n is 0, 1 or 2, …  R and R1 independently of one another are C1-C4-alkyl or together are a 2,3-dehydropentamethylene radical, …  R2 and R3 independently of one another are hydrogen, C1-C4-alkyl or C5-C6-cycloalkyl, and …  R4, R5, R6 and R7, in the event that n = 1, independently of one another are hydrogen or C1-C4-alkyl, and, in the event that n = 0 and in the event that n = 2, are hydrogen, … are described as stabilisers for organic materials against thermal, oxidative or light-induced degradation.