Colorimetric or fluorometric-detectable polymers containing pendant amine groups
US6218491A · kind A · utility
5Cited by
6References
4Claims
0Family size
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Key dates
| Filing date | Feb 5, 1999 |
| Grant date | Apr 17, 2001 |
| Priority date | — |
| Expiry date | Feb 5, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3769
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Polymers having amine-thiol terminal moieties are provided. The amine-thiol terminal moieties are imparted by using amine-thiols as chain transfer agents in aqueous addition polymerizations. The polymers are useful as mineral dispersants, as water-treatment additives for boiler waters, cooling towers, reverse osmosis applications, sugar refining, paper production, geothermal processes and oil wells, and as detergent additives acting as builders, anti-filming agents, dispersants, sequestering agents and encrustation inhibitors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.