Distillation of styrene

Details Distillation of styrene Distillation of styrene

2005-03-08

2005-03-08

Manoharan, Virginia (Department: 1764)

Distillation: processes, separatory

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

For inhibiting or preventing a polymerization reaction

C203S049000, C203S064000, C203S091000, C585S804000, C585S864000

Reexamination Certificate

active

06863779

ABSTRACT:
A process for the distillation of vinylaromatic monomers in the presence of 4-tert-butylcatechol (TBC) and oxygen, wherein no aromatic nitro or amino compound is present in any effective amount. The process is particularly suitable for destabilizing and purifying styrene which has been stabilized with 4-tert-butylcatechol (TBC) for transportation.

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patent: 4835326 (1989-05-01), Daren et al.
patent: 2006863 (1970-02-01), None
patent: 04 403 672 (1990-12-01), None
patent: 50002498 (1975-01-01), None
Kemmere et al, “The influence of 4-tert-butylcatechol on the emulsion polymerization of Styrene” Journal of Applied Polymer Science, 71(14), 1999' 130:237918.

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