Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Reexamination Certificate
2007-05-22
2007-05-22
Zucker, Paul A (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
C562S598000
Reexamination Certificate
active
11229916
ABSTRACT:
This invention relates to a method for inhibiting polymerization of (meth)acrylic acid and its esters using a polymerization inhibitor which comprises at least one reduced halide-content azine dye-based compound. A process for producing reduced halide-content azine dye-based compounds using ion exchange resin technology is also provided.
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Bass Stephen
Mason Robert Michael
Mendoza Joy Lyndon
Skoog Steven John
Vandersall Mark T.
Bodner Marcella M.
Rohm and Haas Company
Zucker Paul A
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