Corrosion inhibiting systems
US8603603B2 · kind B2 · utility
2Cited by
25References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2011 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Mar 29, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/231
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A corrosion inhibiting agent is provided as a finely ground powder that is dispensed into a sheath or other casing enclosing a metal bar, cable, or other tension member. The agents are produced by preparing salts of amines with benzoic acid or nitric acid, drying the salts, and grinding and screening the salts to provide a desired maximum particle size. Also disclosed is a dry fogging system through which the powder is applied to metal tension members enclosed in polymeric sheaths or other fluid tight casings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.