Polymerization inhibitor for vinyl aromatic compounds

Details Polymerization inhibitor for vinyl aromatic compounds Polymerization inhibitor for vinyl aromatic compounds

1976-02-19

1977-12-06

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

Addition of material to distilland to inhibit or prevent...

For inhibiting or preventing a polymerization reaction

203 49, 203 51, 203 58, 203 59, 203 65, 2606665, 260669A, B01D 334, C07C 1510

Patent

active

040615456

ABSTRACT:
Disclosed is a process for the distillation of readily polymerizable vinyl aromatic compounds which comprises subjecting such compounds to distillation conditions in the presence of an effective amount of a combination of phenothiazine and a phenolic compound, preferably tert-butylcatechol (TBC), as a polymerization inhibitor system in the presence of oxygen.

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