Mixtures of phosphanes and chromane derivatives

Details Mixtures of phosphanes and chromane derivatives Mixtures of phosphanes and chromane derivatives

C - Chemistry, Metallurgy

08

K

C08K 5/49 (2006.01) C08J 3/20 (2006.01) C08K 5/1545 (2006.01)

Patent

CA 2392152

The invention relates to a synergistic mixture containing a) at least one compound selected from the following group: phosphanes of the formula (I), (di/oligo)phosphane of the formula (II) and (III) and cyclophosphanes of the formula (IV) and b) at least one 6-hydroxychromane derivative of the general formula (V) in addition to a method for stabilizing polymers against thermo- oxidative degradation by adding and working in said synergistic mixture. Will do.

L'invention concerne un mélange synergétique contenant a) au moins un composé du groupe comportant les phosphanes de formule (I), les (di/oligo)phosphanes de formules (II) et (III), et les cyclophosphanes de formule (IV), et b) au moins un dérivé de hydroxychromane de formule générale (V), ainsi qu'un procédé destiné à stabiliser des polymères contre la dégradation thermo-oxydative par addition et incorporation d'un tel mélange synergétique.

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