Mixtures of aromatic esters for marking or tagging organic products, marker compositions comprising the same and manufacturing methods thereof
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United States of America Patent
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Nov 2, 2010
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Dec 7, 2007
filing date -
Dec 7, 2006
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Abstract
The present invention is directed to a mixture of at least two different alkylated phenolphthalein ester compounds. Specifically, the present invention is directed to a mixture of at least two different compounds of formula I:is a hydrogen atom or a straight chain alkyl group having 1 to 11 carbon atoms; X2-X5 independently represent hydrogen; X6-X13 is same or different, and represents hydrogen or a straight or branched chain alkyl group having 1 to 12 carbon atoms. It further relates to a marker composition containing said mixtures dissolved in a solvent.
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