Continuous process including recycle stream treatment for...

Details Continuous process including recycle stream treatment for... Continuous process including recycle stream treatment for...

C - Chemistry, Metallurgy

08

F

400/6498

C08F 212/08 (2006.01) C08F 279/02 (2006.01)

Patent

CA 1331820

ABSTRACT OF THE DISCLOSURE A continuous flow process for the production of high impact polystyrene utilizing a recycle stream of volatile materials and utilizing a non-volatile antioxidant: wherein specific types of polymerization inhibiting impurities are removed from A recycle stream prior to feeding or introducing the recycle stream into a styrene polymerization zone. Preferably, the process further comprises the step of monitoring the acidity of the recycle stream and using a free radical initiator which decomposes to form only non-acid by-products.

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