Stabilization of polyetherimide sulfones

Details Stabilization of polyetherimide sulfones Stabilization of polyetherimide sulfones

2005-06-09

2008-08-12

Szekely, Peter (Department: 1796)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S133000, C524S135000, C524S147000, C524S150000, C524S151000, C524S152000, C524S153000

Reexamination Certificate

active

07411014

ABSTRACT:
A composition comprising a phosphorus containing stabilizer and a polyetherimide sulfone resin having an amount of anhydride functional end groups in excess of the amount of amine functional end groups. The composition may optionally comprise a hindered phenol.

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