Process for producing stabilized polystyrene compositions

C - Chemistry – Metallurgy – 08 – F

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18/638, 403/7, 4

C08F 112/08 (2006.01) C08F 12/06 (2006.01)

Patent

CA 1212495

PROCESS FOR PRODUCING STABILIZED POLYSTYRENE COMPOSITIONS Abstract of the Disclosure A process is provided for the production of polystyrene and poly(p-methylstyrene) containing polymer stabilized, said polymer stabilizer being present during all or part of the polymerization process. The polymer stabilizer is a mixture of a hindered phenol compound and a polyphosphite compound. There is also provided a process for the production of foam polymer using the polystryrene or poly(p-methylstryrene) containing polymer stabilizer.

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