COMPOSITION AND PROCESS FOR WHITENING PAPER
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United States of America Patent
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Issued Date -
May 23, 2013
app pub date -
Jul 14, 2011
filing date -
Jul 30, 2010
priority date (Note) -
Abandoned
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Abstract
The invention relates to a composition suitable for surface treatment of paper, wherein the composition contains a specified fluorescent whitening agent with a combination of specific terminal groups, a salt of a bivalent cation, and a carrier. The composition is used for whitening paper, in particular in the size press.
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