Tagged scale inhibiting polymers, compositions comprised thereof and preventing or controlling scale formation therewith
US7943058B2 · kind B2 · utility
11Cited by
2References
17Claims
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Key dates
| Filing date | Jun 25, 2004 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Jan 29, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/28
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Tagged scale-inhibiting polymers, compositions comprised thereof and preventing or controlling scale formation therewith, the tagging units being units deriving from a monomer having the formula X2C═CYY′ wherein X is a hydrogen atom, or a C1-C4 alkyl radical, Y is a hydrogen atom or a C1-C4 alkyl radical, Y′ is a radical having formula -L-Arom, wherein L is a covalent bond or a divalent organic linking group optionally comprising heteroatoms, and Arom is a group comprising at least two conjugated aromatic rings, said rings comprising conjugated carbon atoms, and, linked to said carbon atoms, hydrogen atoms or other substituents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.