Use of block copolymers bearing phosphate and/or phosphonate functions as adhesion promoters or as protecting agents against the corrosion of a metallic surface
US7439292B2 · kind B2 · utility
4Cited by
1References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2003 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Dec 4, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L53/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to the use of a block copolymer having at least one block that comprises phosphate and/or phosphonate functions, as an additive for film-forming compositions, such as paint, latex or mastic which is optionally siliconised in order to ensure or promote the adhesion of the aforementioned compositions on a metallic surface or to protect said metallic surface against corrosion. The invention also relates to film-forming compositions comprising the abovementioned block copolymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.