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US 8,283,044 B2Granted
Conversion coatings with conductive additives, processes for applying same and their coated articles
AssigneeUnited Technologies Corporation
InventorsMark R. Jaworowski, Sarah Arsenault, James T. Beals
Life of this patent
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Abstract
A coating composition includes a conductive polymer including at least one of the following: a single conductive polymer, a dual strand conductive polymer, a combination of a single conductive polymer and a dual strand conductive polymer or an organic-inorganic hybrid composite.
Claims14
A coating composition, comprising:
- a conductive polymer selected from the group consisting of a single conductive polymer, a dual strand conductive polymer, a combination of a single conductive polymer or a dual conductive polymer or an organic-inorganic hybrid composite comprising at least one inorganic inhibitor species selected from the group consisting of a metal of Group V, a metal of Group VI, an element from the lanthanide series, and mixtures thereof;
- or at least one film forming agent selected from the group consisting of an oxide of a metal of Group IV, an oxide of a metal of Group V, an oxide of a metal of Group VI and mixtures thereof, said conductive polymer including at least one terminal end having a coupling agent bonded thereto, wherein said coupling agent comprises any one of the following functional groups:
- beta-diketones, mercaptoesters, benzotriazoles, benzothiazoles, and carboxylic acids.
A process for coating an article, comprising:
- contacting an aluminum-based article with a solution, said solution includes a solvent and a conductive polymer selected from the group consisting of a single conductive polymer, a dual strand conductive polymer, a combination of a single conductive polymer and an organic-inorganic hybrid composite comprising at least one inorganic inhibitor species selected from the group consisting of a metal of Group V, a metal of Group VI, an element from the lanthanide series, and mixtures thereof;
- and at least one film forming agent selected from the group consisting of an oxide of a metal of Group IV, an oxide of a metal of Group V, an oxide of a metal of Group VI and mixtures thereof;
- providing said conductive polymer with at least one terminal end and bonding a coupling agent to the terminal end, wherein said coupling agent comprises any one of the following functional groups:
- beta-diketones, mercaptoesters, benzotriazoles, benzothiazoles, and carboxylic acids;
- and
- drying a coated aluminum-based part.
3 more elements
A coated article, comprising:
- an article includes at least one surface having a coating disposed thereupon,
- wherein said coating includes at least one conductive polymer bonded to at least one intermetallic particle of said at least one surface,
- wherein said at least one conductive polymer includes a terminal end having a coupling agent bonded thereto, said coupling agent includes at least one of the following functional groups:
- beta-diketones, mercaptoesters, benzotriazoles, benzothiazoles, amines, or carboxylic acids;
- and
- wherein said at least one conductive polymer includes an organic-inorganic hybrid composite comprising an inorganic inhibitor species selected from the group consisting of a metal of Group V, a metal of Group VI, an element from the lanthanide series, and mixtures thereof, or at least one film forming agent selected from the group consisting of an oxide of a metal of Group IV, an oxide of a metal of Group V, an oxide of a metal of Group VI and mixtures thereof.
3 more elements
Dependencies are inferred from the claim text.