Corrosion-resistant coating
US4781988A · kind A · utility
6Cited by
20References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1986 |
| Grant date | Nov 1, 1988 |
| Priority date | — |
| Expiry date | Sep 29, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31717
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A corrosion-resistant coating for a ferrous surface comprising an asphaltic matrix of an asphalt or a petroleum resin or a mixture thereof having a convertant dispersed therein. The convertant is either adsorbed at the ferrous surface or reacts chemically with the surface to prevent further oxidation. Preferably, the coating is sprayed onto the surface as a solution in a solvent, and the solution may also include a film-forming resin. Other optional coating ingredients include elastomers to improve low-temperature characteristics, and fillers or bulking agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.