Process for inhibiting polymerization of an aromatic vinyl compound
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United States of America Patent
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Apr 10, 2007
Grant Date -
Jul 29, 2004
app pub date -
Apr 18, 2002
filing date -
Apr 25, 2001
priority date (Note) -
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Abstract
According to the present invention, there is provided a process for inhibiting the polymerization of an aromatic vinyl compound which is capable of efficiently inhibiting the polymerization of an aromatic vinyl compound not only in an initial stage but also over a long term in the stage of producing, purifying, storing or transporting the aromatic vinyl compound, and which is excellent in handling. The present invention relates to a process for inhibiting the polymerization of an aromatic vinyl compound which requires the step of adding a 2-nitrophenol compound in combination with a sulfonic acid compound to the aromatic vinyl monomer during the stage of producing, purifying, storing or transporting the aromatic vinyl compound.
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