Method for preventing easily polymerizing substance from polymerization and method for production of (meth) acrylic acid or ester thereof
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United States of America Patent
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-
Nov 5, 2002
Grant Date -
N/A
app pub date -
Jun 13, 2001
filing date -
Jun 6, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a packed column handling an easily polymerizing substance, the packing with which the column is stuffed is subjected to a water-repelling treatment or a wetting treatment to prevent the easily polymerizing substance in the packed column from polymerizing. By preventing the occurrence of a polymer, it is made possible to ensure continuous production of an easily polymerizing substance-containing solution and decrease the content of the easily polymerizing substance in the product and consequently improve the quality of the product.
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