Process for making polystyrene

C - Chemistry – Metallurgy – 08 – F

Patent

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402/578

C08F 112/08 (2006.01) C08F 2/06 (2006.01) C08F 4/00 (2006.01) C08F 12/08 (2006.01)

Patent

CA 1076745

Abstract of the Disclosure A method for making polystyrene with ?w between 200 and 50,000 and ?w/?n ratio of less than 8 by cation- ically polymerizing styrene monomer under substantially isothermal conditions where the conversion of styrene monomer is carried out in 2 or more stages by contacting with a cation generator. The polystyrene product finds utility as plasticizer for high molecular weight poly- styrenes, as a binder resin in various coating applications, and as a precursor for further functionalized polystyrene derivatives. 18,105-F

283790

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