Fluorescent polymers for water treatment
US10358363B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Mar 17, 2016 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Jul 8, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B69/103
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Novel fluorophores and their use as fluorescent tags for polymers used in wastewater treatment. The fluorophores are quaternary amine salts that can be used to synthesize fluorescent tagged polymers that are stable at varying pH, have significant water solubility, and may be fluorescent at wavelengths greater than 550 nm. The fluorophores readily undergo polymerization with vinylic monomers to form fluorescent tagged polymers with excellent incorporation of fluorophore into the polymer framework. The fluorescent tagged polymers are useful to monitor and optionally dose industrial wastewater.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.