3,9-bis (dialkylamino) -2,4,8,10-tetraoxa-3,9-diphosphaspiro (5,5) -undecanos and stabilized compositions.

摘要

ARE PRESENTED compositions of formula I wherein R1, R2, R3 and R4 are each 2-ethylhexyl OR ARE INDEPENDENTLY higher alkyl, or R1 and R2 are independently hydrogen or methyl and R3Y R4 are independently higher alkyl, the compounds are ESTABILIZADORES ACTUAL PROCESSING FOR POLYMERS pROCESSED AT ELEVATED TEMPERATURES AVOIDING polymer degradation and providing a high resistance to fading. The compounds of formula I also exhibit hydrolytic stability and resistance SUPERIOR TO ACQUISITION OF MOISTURE during storage.