Method for reducing negative effects of adhesive contaminants in systems of substances comprising waste paper
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United States of America Patent
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Jun 16, 2015
Grant Date -
Oct 2, 2014
app pub date -
Jun 11, 2014
filing date -
Aug 3, 2009
priority date (Note) -
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Abstract
The invention relates to a method for reducing the negative effects of adhesive contaminants in the processing of waste paper, wherein an aqueous polymer dispersion comprising one component A and one component B for coagulation and detackification of stickies is added during the processing of waste paper, wherein component A is a homo- and/or copolymer of methyl methacrylate, acrylate and/or styrene and component B is a styrene copolymer having acrylic acid, maleimide and/or maleic acid hydride. The polymer dispersion can optionally comprise another component C, a cationic fixing agent that supports the coagulation of the stickies.
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