Inhibition of polymerization of vinylaromatic or vinylaliphatic

Details Inhibition of polymerization of vinylaromatic or vinylaliphatic Inhibition of polymerization of vinylaromatic or vinylaliphatic

1997-10-07

1999-03-30

Manoharan, Virginia

Distillation: processes, separatory

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

For inhibiting or preventing a polymerization reaction

203 9, 203 91, 585 5, 585860, 585864, 585952, 560205, 560218, B01D 310, B01D 334, C07C 720

Patent

active

058883568

ABSTRACT:
The polymerization of a vinylaromatic or vinylaliphatic compound at elevated temperature in the absence of air is inhibited by processing the vinylaromatic or vinylaliphatic compound in the presence of 4-hydroxy-2,2,6,6-tetramethylpiperidine-N-oxyl or 4-acetylamino-2,2,6,6-tetramethylpiperidine-N-oxylalone or in admixture with p-nitrosophenol or 2-methyl-4-nitrosophenol.

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patent: 5322960 (1994-06-01), Kazuhiko Sakamoto, et al.
patent: 5468789 (1995-11-01), Lewis et al.

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