Poly(oxyalkylene) substituted aminophenol intermediate and xanthene colorant
AssigneeMilliken Research Corporation
InventorCarey N. Barry, Jr.
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AssigneeMilliken Research Corporation
InventorCarey N. Barry, Jr.
Estimating the term…
A poly(oxyalkylene) substituted xanthene colorant is providing having the following structure: ##STR1## where Y is a poly(oxyalkylene) substituent having a straight or branched polymer chain of from 3 to 400 monomer units selected from ethylene oxide, propylene oxide, butylene oxide and glycidol; R.sub.1 and R.sub.2 are independently selected from H, C1-C8 alkyl, aryl and Y, provided that if either R.sub.1 or R.sub.2 are Y, the other is not H; R.sub.3 and R.sub.4 are independently selected from H, C1-C4 alkyl, C1-C4 alkoxy, Cl, Br and I; X is selected from H, SO.sub.3 --, CO.sub.2 -- and COOR.sub.5, where R.sub.5 is C1-C4 alkyl or aryl; and each Z is independently selected from SO.sub.3 --, CO.sub.2 --, COOR.sub.6, Cl, and OH, where R.sub.6 is C1-C4 alkyl or aryl, and n is 0, 1, 2 or 3. The colorant is synthesized using a novel poly(oxyalkylene) substituted aminophenol intermediate.
A colorant intermediate comprising a compound having the structure:
A colorant intermediate comprising a compound having the structure:
A xanthene colorant comprising a compound having the structure:
A xanthene colorant comprising a compound having the structure:
Dependencies are inferred from the claim text.