Polymerization inhibitor for vinyl aromatic compounds

Distillation: processes – separatory – Addition of material to distilland to inhibit or prevent... – For inhibiting or preventing a polymerization reaction

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Details

203 65, 260669A, B01D 334, C07D 718

Patent

active

040861473

ABSTRACT:
Disclosed is a process for the distillation of readily polymerizable vinyl aromatic compounds and a new polymerization inhibitor therefor. The process comprises subjecting a vinyl aromatic compound to elevated temperatures in a distillation system in the presence of a new polymerization inhibitor comprising m-nitro-p-cresol.

REFERENCES:
patent: 2225471 (1940-12-01), Foord
patent: 3787515 (1974-01-01), Nikdaevich et al.
patent: 3988212 (1976-10-01), Watson

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