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US 4,728,675 AGranted
Modified flame retardant polyphenylene ether resins having improved foamability and molded articles made therefrom
AssigneeGeneral Electric Company
InventorEric Pressman
Life of this patent
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Abstract
Polyphenylene ether compositions rendered flame retardant with bromine-containing compounds can be foam molded into shaped articles free of streaking and without the generation of odors if the foaming agent comprises citric acid and sodium bicarbonate.
Claims10
A composition adapted to the production of a flame retardant thermoplastic foam without surface streaking and odor generation, said composition comprising:
- (a) a polyphenylene ether, alone, or in combination with a styrene resin;
- (b) an effective flame retarding amount of a halogenated flame retardant, alone, or in combination with an antimony compound;
- and
- (c) an effective foam generating amount of a foaming agent comprising-citric acid and sodium bicarbonate.
1 more element
Dependencies are inferred from the claim text.