Polymeric agents and compositions for inhibiting corrosion
AssigneesThe Boeing Company, Commonwealth Scientific and Industrial Research Organisation
InventorsJames Ivan Mardel, Ivan Stewart Cole, Paul Andrew White, Anthony Ewart Hughes, Tracey Anne Markley, Timothy Graham Harvey, Joseph Osborne, Erik Sapper
Life of this patent
Estimating the term…
Abstract
The present disclosure is directed to processes, compositions and agents for inhibiting corrosion in various substrates, for example metal substrates. The present disclosure is also directed to corrosion inhibitors comprising organometallic polymers such as metal-organic frameworks (MOFs), including compositions and processes comprising MOFs for inhibiting corrosion in metal substrates.
Claims20
A coated substrate comprising a substrate coated with a corrosion inhibiting composition comprising a metal organic framework (MOF),
- wherein:
- the MOF comprises metal ions or metal clusters each coordinated to one or more organic ligands to form at least a one-, two- or three dimensional network, and wherein the one or more organic ligands are independently selected from the group consisting of optionally substituted aryl, heteroaryl or heterocyclic groups,
- each of the aryl, heteroaryl or heterocyclic groups comprise at least one exocyclic sulphur group,
- the metal ions or metal clusters of the MOFs are independently selected from at least one of rare earth metals and transitions metals,
- the at least one of rare earth metals and transition metals is selected from the group consisting of Zn, Pr, Ce, and combinations thereof, and
- a molar ratio of organic ligand:metal ions is at least 2:1.
A coated substrate comprising:
- a substrate coated with a corrosion inhibiting composition comprising a corrosion inhibitor-containing metal organic framework (MOF),
- wherein the MOF comprises a plurality of metal ions or a plurality of metal clusters each coordinated to one or more organic ligands to form a one-, two- or three dimensional network, and wherein the one or more organic ligands are independently selected from the group consisting of optionally substituted aryl, heteroaryl, and heterocyclic groups, wherein the aryl, heteroaryl, and heterocyclic groups comprise at least one exocyclic sulphur group, and a molar ratio of organic ligand:metal is 2:1 or greater.
Dependencies are inferred from the claim text.