Paint for inhibiting rust staining
US4814209A · kind A · utility
7Cited by
9References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1987 |
| Grant date | Mar 21, 1989 |
| Priority date | — |
| Expiry date | Oct 30, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D5/086
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
External rust-staining, for example at the exterior of buildings or on the superstructure or topside of ships, caused by rust dripping onto a surface is inhibited by painting the surface with a top-coat paint comprising a film-forming binder and a substance capable of reacting with rust to form a colorless material. The said substance can for example be a polyphosphonate salt pigment, an oxalate or a glass releasing phosphate ions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.