Self-precipitating aqueous particulate composition comprising pigment binder particles
US8877833B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2011 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | Nov 23, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31529
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to an acidic, aqueous, particulate composition having a high stability with respect to agglomeration for autophoretic deposition of organic-inorganic hybrid layers on metal surfaces, comprising, in addition to iron(III) ions, fluoride ions and at least one dispersed organic binder (B), pigment-binder particles comprising a pigment portion and a binder portion (B), such that the binder (B) comprises a polymer of at least one monomer having acid groups and at least one polymerizable double bond. Likewise, the invention relates to the use of an aqueous dispersion comprising pigment-binder particles comprising a pigment portion and a binder portion (B) for the production of a self-depositing composition as well as a method for autophoretic deposition on metal surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.