Fluorescent monomers and tagged treatment polymers containing same for use in industrial water systems
US9751789B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Dec 28, 2012 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Jun 8, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/32
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The invention is directed towards methods and compositions for making and using fluorescent monomers which are synthesized by reacting a substituted or non-substituted benzoxanthene 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.