Organic sulfide stabilized polymeric engineering resins

Details Organic sulfide stabilized polymeric engineering resins Organic sulfide stabilized polymeric engineering resins

1989-10-31

1992-01-14

Hoke, Veronica P.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

106169, 106176, 106188, 524111, 524368, 524376, 524377, 524392, C08K 537

Patent

active

050811690

ABSTRACT:
The present invention is directed to a composition comprising a polymeric engineering resin selected from the group consisting of polycarbonates, polyarylethers, polyamides, polyesters, polyacetals, polyaryl sulfides, cellulose esters and styrene copolymers; and an amount of an organic sulfide antioxidant sufficient to stabilize the resin against oxidative or thermal degradation during processing and use, the organic sulfide antioxidant being represented by Formula I, II, or III: ##STR1## wherein m, n, R, R.sup.1, R.sup.2, R.sup.3, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are as set forth in the Summary of the Invention.

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