C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
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.
447043
Hargreaves Brian
Smith Brian H.a.
Manton J.e.
Polysar Limited
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