Fire-retardant imide copolymers

Details Fire-retardant imide copolymers Fire-retardant imide copolymers

1980-05-07

1981-05-05

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

260 457R, 260 457S, 260 4575B, 260 4575P, 260 4575R, 260 4595G, 260DIG24, 521 83, 521 85, 521 88, 521 89, 521 91, 521 92, 521139, 521147, 521907, C08J 912

Patent

active

042660378

ABSTRACT:
Copolymers of monovinyl aromatic monomers and imide derivatives of ethylenically unsaturated dicarboxylic acid monomers are blended with water as a blowing agent, bromodiphenylethers as fire retardants, and metal oxides as synergist for the ethers to form a composition which can be foamed to densities of between 1 and 10 pounds per cubic foot, said composition having fire retardant properties.

REFERENCES:
patent: 2864777 (1958-12-01), Greenhoe
patent: 2911382 (1959-11-01), Barkhuff, Jr. et al.
patent: 3676378 (1972-07-01), Heil et al.
patent: 4207402 (1980-06-01), Sprenkle, Jr.

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