Method of stabilizing metal pigments against gassing
US7462394B2 · kind B2 · utility
1Cited by
13References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 2005 |
| Grant date | Dec 9, 2008 |
| Priority date | — |
| Expiry date | Nov 15, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to a passivating material suitable for passivating a metal surface. The passivating material comprises a polymer which comprises (a) at least one nitro group, and/or pyridine group, and/or phenolic hydroxyl group; and (b) at least one group selected from a phosphorous-containing group and/or a carboxylic acid group, wherein the at least one phosphorous-containing group is selected from a phosphate, a phosphite, or a non-nitrogen substituted phosphonate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.