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US 4,900,768 AGranted
Crosslinkable flame retardant composition of polyphenylene ether and elastomers
AssigneeGeneral Electric Company
InventorsVisvaldis Abolins, Joseph E. Betts, Fred F. Holub, Gim F. Lee, Jr.
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Abstract
Flame retardant mixtures of a polyphenylene ether resin, an alkenyl aromatic elastomer, an organic phosphate flame retardant agent and a crosslinking agent are described. They are curable by heating or by exposure to high energy radiation. Articles such as electrical wires and cables comprising insulation made of the composition, and a method of their production, are also disclosed.
Claims26
A heat or radiation curable flame retardant composition which is non-dripping when molded, cured and subjected to a vertical burn test, comprising an admixture of
- (a) a polyphenylene ether resin;
- (b) an alkenyl aromatic elastomer;
- (c) an effective amount of an aromatic phosphate flame retardant agent;
- and
- (d) an effective amount of a crosslinking agent, said polyphenylene ether resin being present in an amount at least sufficient to render said composition non-dripping when said composition is molded, cured and subjected to a vertical burn test.
2 more elements
Dependencies are inferred from the claim text.