Fluorescent monomers and polymers containing same for use in industrial water systems
US6312644A · kind A · utility
36Cited by
11References
17Claims
0Family size
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Key dates
| Filing date | Dec 16, 1999 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Dec 16, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/50
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Fluorescent monomers of the formula ##STR1## PA1 wherein M is selected from the group consisting of hydrogen, sodium, potassium, cesium, rubidium, lithium and ammonium, and PA1 n is selected from the group consisting of 1, 2, 3, 4, 6 and 9; PA1 are provided which are useful in the production of pyranine-tagged polymers which can be detected using a fluorometer and can be used in industrial water systems as treatment polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.