Triazinylaminostilbene disulphonic acid mixtures
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United States of America Patent
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Sep 18, 2007
Grant Date -
Feb 9, 2006
app pub date -
Jun 24, 2003
filing date -
Jul 5, 2002
priority date (Note) -
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Abstract
The present invention relates to a fluorescent whitening agent comprising a mixture of two symmetrically and one asymmetrically substituted triazinylaminostilbene disulphonic acids, novel asymmetrically substituted derivatives, a process for their preparations and use of the mixture for whitening synthetic or natural organic materials, especially paper and for the fluorescent whitening and improvement of sun protection factors of textile materials.
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