Alkenyl aromatic monomer olefinically unsaturated acid foams and

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...

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521 79, 521 92, 521 94, 521 97, C08J 908

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active

045322651

ABSTRACT:
Highly desirable alkenylaromatic monomer olefinically unsaturated acid foams are prepared by extrusion using as a blowing agent inorganic compounds such as sodium bicarbonate, either alone or in combination with volatile fluid foaming agents.

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patent: 4306036 (1981-12-01), Corbett
patent: 4307202 (1981-12-01), Corbett
patent: 4312910 (1982-11-01), Suh

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