Polyfunctional polymers based on phosphonate units and amine units
US10457899B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Oct 15, 2015 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Oct 15, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to polyfunctional polymers suitable in particular for the treatment of metal surfaces (metal finishing) and comprising: monomer units u1 bearing phosphonic acid functions; monomer units u2 bearing amine functions; and optionally monomer units u3 bearing alcohol units —OH.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.