Flame retardant modified polyphenylene oxide composition

Details Flame retardant modified polyphenylene oxide composition Flame retardant modified polyphenylene oxide composition

1987-09-03

1991-02-12

Hoke, Veronica P.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524114, 524142, 524469, 524468, C08K 5527

Patent

active

049924966

ABSTRACT:
It was unexpectedly found that a brominated phosphate ester, tris(2,4-dibromophenyl)phosphate when employed in flame retardant quantities in a modified polyphenylene oxide resin resulted in discoloration of the resin on aging. Neither phosphate esters, flame retardants nor brominated flame retardants when employed separately as flame retardants caused similar discoloration. The use of epoxy compounds counteracted this color stability problem.

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