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METHOD FOR STABILIZING LEUCO-TYPE COLORANT

  • US 20080295259A1
  • Filed: 02/21/2008
  • Published: 12/04/2008
  • Est. Priority Date: 02/22/2007
  • Status: Active Grant
First Claim
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1. A method of stabilizing a leuco dye solution, wherein a leuco dye coexists with at least one of reducing agents selected from the group consisting of reductive thioalcohols and reductive sulfates.

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