Production of expandable styrene polymers

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 56, 521 96, 521114, C08J 920

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059088729

ABSTRACT:
In a process for producing expandable styrene polymers containing graphite particles by polymerization of styrene in aqueous suspension in the presence of two peroxides which decompose at different temperatures, the peroxide which decomposes at lower temperature is multifunctional and on decomposition forms two or more linked polymer chains.

REFERENCES:
patent: 5177115 (1993-01-01), Hintz
patent: 5266603 (1993-11-01), Holtzmeier

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