Aqueous dispersions for antioxidants

Details Aqueous dispersions for antioxidants Aqueous dispersions for antioxidants

2007-04-17

2007-04-17

Sanders, Kriellion (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S503000

Reexamination Certificate

active

10508443

ABSTRACT:
The present invention relates to aqueous dispersions for solid phenolic antioxidants, wherein the antioxidants are dispersed in the aqueous phase with polyvinyl alcohol as dispersing agent. The invention also relates to a process, which comprises stabilising a polymer material against oxidative, thermal or light-induced degradation by adding to the polymer the aqueous dispersion.

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patent: 2001/0022965 (2001-09-01), Heger et al.
patent: 2003/0073768 (2003-04-01), Koch et al.
patent: 0458509 (1991-11-01), None
patent: 0884352 (1998-12-01), None
patent: 1085069 (2001-03-01), None
patent: 1366702 (1974-09-01), None

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