Water soluble phosphonated polymers
US4851490A · kind A · utility
7Cited by
16References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1989 |
| Grant date | Jul 25, 1989 |
| Priority date | — |
| Expiry date | Feb 21, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F5/145
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Novel water soluble polymers containing an hydroxyl alkyl aminoalkylene phosphonate functionality are disclosed. These polymers have utility as deposit control agents effective in a number of water systems such as cooling, boilers conversion coating, paper and pulp processing and gas scrubbing. The polymers are formed from the polymerization of ethylenically unsaturated compounds with a compound having the structure: ##STR1## in which R.sub.1 is an hydroxyl substituted or nonsubstituted lower alkylene group, R.sub.2 is H or lower alkyl group, R.sub.3 is a lower alkylene group and M is H or water soluble cation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.