Compositions and methods for inhibiting the deposition of organic contaminants in pulp and papermaking systems
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United States of America Patent
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Sep 14, 1999
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app pub date -
Sep 16, 1997
filing date -
Apr 12, 1995
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Abstract
Composition and methods for inhibiting the deposition of organic contaminants from pulp in pulp and papermaking systems are disclosed. The methods add to the pulp or to the deposition prone surface of the papermaking system a composition comprising a polyvinyl alcohol having 50 to 100% hydrolysis, a high molecular weight gelatin having a molecular weight of about 100,000 or higher, and a cationic polymer.
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