Hydrolytically stable pentaerythritol diphosphites

Details Hydrolytically stable pentaerythritol diphosphites Hydrolytically stable pentaerythritol diphosphites

C - Chemistry, Metallurgy

07

F

C07F 9/6574 (2006.01) C08K 5/527 (2006.01)

Patent

CA 2153704

A class of hydrolytically stable bis(aralkylphenyl)pentaerythritol diphosphites is disclosed, which is suitable as antioxidant additives in polyolefins, particularly, in polypropylene. The diphosphites are of low volatility, have a high thermal decomposition temperature and resist yellowing when blended into a polyolefin base. A preferred diphosphite is bis(2,4-dicumylphenyl)pentaerythritol diphosphite.

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