Fluorescent monomers and tagged treatment polymers...

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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Reexamination Certificate

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07875720

ABSTRACT:
Fluorescent monomers are described and claimed which are synthesized by reacting a substituted or non-substituted naphthalic anhydride with an amine and with a moiety containing a polymerizable group. Such monomers are useful for the preparation of tagged treatment polymers. Such tagged treatment polymers are useful as scale inhibitors in industrial water systems.

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Office Action, U.S. Appl. No. 09/560,881, dated Nov. 19, 2002.
Notice of allowance, U.S. Appl. No. 10/658,715, dated Sep. 14, 2006.

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