Bis-azo colorants for use as bluing agents
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United States of America Patent
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Dec 29, 2020
Grant Date -
May 24, 2012
app pub date -
Dec 7, 2011
filing date -
Oct 22, 2010
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Abstract
Bis-azo colorants for use as bluing agents, laundry care compositions including bis-azo colorants that may serve as bluing agents, processes for making such bluing agents and laundry care compositions and methods of using the same. The bluing agents are generally include at least two components: at least one chromophore component and at least one polymeric component. These bluing agents are advantageous in providing a whitening effect to fabrics, while not building up over time and causing undesirable blue discoloration to the treated fabrics.
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