Flocculation treatment agent
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United States of America Patent
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Jan 12, 2016
Grant Date -
Jul 2, 2015
app pub date -
Dec 13, 2012
filing date -
Jun 6, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A water-in-oil emulsion is a product form having many practical advantages. A vinylamine-based macromolecule having specific effects as papermaking chemicals and a flocculant is provided in the form of a water-in-oil emulsion having good storage stability and high performance as a flocculation treatment agent. Disclosed is a flocculation treatment agent including a water-in-oil emulsion of a water-soluble macromolecule that is produced by subjecting a water-in-oil emulsion of an aqueous poly-N-vinylcarboxylic acid amide solution coexisting with a polyoxyalkylene alkyl ether to hydrolysis in the presence of an acid or a base. Preferably, the polyoxyalkylene alkyl ether is added before the hydrolysis reaction.
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International Classification(s)
- C08F:MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONL....
- D21H:PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED....
- C02F:TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE....
- C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- B01D:SEPARATION
- D21C:PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE ....
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