Corrosion-resistant, chromium-free, self-priming coatings curable by ultraviolet light
AssigneesDr. Ben Curatolo, Inc. dba Light Curable Coatings, The Boeing Company
InventorsJohn R. DEANTONI, Benedict S. CURATOLO
Life of this patent
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Abstract
Corrosion-resistant, self-priming coatings that are curable by ultraviolet energy and methods for coating surfaces using such coatings have been provided. In an exemplary embodiment, a method for coating a surface includes formulating a chromium-free, self-priming coating, applying the chromium-free, self-priming coating to the surface, and curing the chromium-free, self-priming coating with ultraviolet light.
Claims16
A gloss exterior surface of an aircraft, comprising:
- an ultraviolet light-cured, single, chromium-free, self-priming coating consisting essentially of an oligomer, a monomer, a photoinitiator, a pigment, and a corrosion inhibitor;
- the surface of the aircraft comprising aluminum or an aluminum alloy;
- wherein the single coating provides corrosion resistance, a desired color and gloss to the surface;
- and
- wherein the oligomer is selected from the group consisting of aliphatic polyether urethane acrylates, diacrylates, and triacrylates, and aliphatic polyester urethane acrylates, diacrylates, and triacrylates, and the photoinitiator is an acylphosphine oxide or a bisacylphosphine oxide.
A gloss exterior surface of an aircraft prepared by the method of
- formulating a chromium-free, self-priming coating consisting essentially of an oligomer selected from the group consisting of aliphatic polyether urethane acrylates, diacrylates, and triacrylates, and aliphatic polyester urethane acrylates, diacrylates, and triacrylates;
- a monomer;
- a photoinitiator;
- a corrosion inhibitor;
- a pigment;
- and one or more compounds selected from the group consisting of a peroxide, a tertiary amine, and combinations thereof;
- applying in a single application the chromium-free, self-priming coating to a surface of the aircraft comprising aluminum or an aluminum alloy to form a single coating that provides corrosion resistance to the surface and also provides a desired color and gloss to the surface;
- and
- curing the chromium-free, self-priming coating with ultraviolet light to form the gloss exterior surface of the aircraft;
- wherein the step of curing the chromium-free, self-priming coating is optionally performed in air.
A gloss exterior surface of an aircraft prepared by the method of:
- formulating a chromium-free, self-priming coating consisting essentially of an oligomer selected from the group consisting of aliphatic polyether urethane acrylates, diacrylates, and triacrylates, and aliphatic polyester urethane acrylates, diacrylates, and triacrylates, a monomer, a bisacylphosphine oxide photoinitiator, an organic/inorganic hybrid corrosion inhibitor pigment, a silica filler material, and optionally an added pigment;
- applying in a single application the chromium-free, self-priming coating to a surface of the aircraft comprising aluminum or an aluminum alloy to form a single coating that provides corrosion resistance to the surface and also provides a desired color and gloss to the surface;
- and
- curing the chromium-free, self-priming coating with ultraviolet light to form the gloss exterior surface of the aircraft.
A coating for an exterior surface of an aircraft comprising aluminum or an aluminum alloy, the coating comprising:
- an acrylated oligomer selected from the group consisting of acrylates, methacrylates, diacrylates, triacrylates, and polyacrylates;
- a monomer selected from the group consisting of acrylates, methacrylates, diacrylates, triacrylates, polyacrylates, allyl compounds, vinyl ethers, vinyl esters, vinyl carboxylic acids, vinyl carboxylic acid salts, vinyl amides, unsaturated dicarboxylic acids, and derivatives thereof;
- a photoinitiator;
- and
- a chromium-free corrosion inhibitor.
Dependencies are inferred from the claim text.