Rubber-modified fire-retardant anhydride copolymers

Details Rubber-modified fire-retardant anhydride copolymers Rubber-modified fire-retardant anhydride copolymers

1980-05-07

1981-07-14

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

260 4595G, 521 82, 521 83, 521 92, 521139, 521147, 525221, C08J 906, C08J 912

Patent

active

042787688

ABSTRACT:
Rubber-modified copolymers of monovinyl aromatic monomers and the anhydride 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 foam 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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