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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C546S047000

Reexamination Certificate

active

07148351

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.

REFERENCES:
patent: 4813973 (1989-03-01), Winnik et al.
patent: 5635575 (1997-06-01), Kira et al.
patent: 5635576 (1997-06-01), Foll et al.
patent: 7026019 (2006-04-01), Dutova et al.
Structure for CAS Registry No. 276878-97-8; date and time of registration of the compound that was given CAS Registry No. 276878-97-8 is stated to be Jul. 13, 2000 at 12:53, by CAS®.

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