Electrodialysis treatment
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United States of America Patent
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Jul 1, 1997
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N/A
app pub date -
Feb 3, 1995
filing date -
Feb 3, 1994
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Abstract
A process for reducing the content of organic and inorganic halogen in an aqueous solution of a nitrogen-containing epihalohydrin-based resin, in which process the aqueous resin solution is subjected to an electrodialysis treatment. The aqueous resin solutions obtained by the process are used as additives in the production of paper, board and paper board, in particular as wet-strength agents.
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