Activation method
AssigneesThe Boeing Company, Commonwealth Scientific and Industrial Research Organisation
InventorsStuart Arthur Bateman, Francisco Cardonna, Ranya Simons, Dong Yang Wu, Douglas H. Berry, James F. Kirchner, Seana B. Kobak, Jill E. Seebergh
Life of this patent
Estimating the term…
Abstract
A method of activating an organic coating, a coated substrate having an activated coating and an activation treatment for an organic coating. In particular, the activation method improves the adhesion of the organic coating to further coating layers and/or to other entities.
Claims35
A method of activating an organic coating present on a substrate to increase adhesion of the organic coating to a further coating and/or to other entities selected from adhesives, sealants, fillers and pressure sensitive decals or logos, the method comprising:
- applying an activation treatment to the organic coating present on the substrate wherein the activation treatment increases adhesion of a further coating and/or other entities selected from adhesives, sealants, fillers and pressure sensitive decals or logos to the organic coating on the substrate, wherein,
- the organic coating is a cross-linked organic coating which is a polyurethane, epoxy, polyester and/or acrylic cross-linked coating, and wherein,
- the activation treatment consists of:
- an organic solvent selected from ester based solvents, ketones, alcohols, ethers, amides, aromatics and halogenated solvents and combinations thereof;
- an adhesion promoter selected from linear and branched polyethylene imines (PEI), amine and/or hydroxyl terminated polyether glycols, dendrimers, ethylene diamine, diethylene tetraamine, triethylene tetraamine (TETA), tetraethylene pentamine, pentaethylene hexamine, piperazine, aminoethylpiperazine, 1,4-bis(3-aminopropyl)piperazine, N,N′-bis(3-aminopropyl)ethylenediamine, 4,9-dioxa-1,12-dodecanediamine, 2,2′-(ethylenedioxy)bis(ethylamine), 4,7,10-trioxamidecane-1,13-diamine (TODA), 4,7-dioxadecane-1,10-diamine (DODA), polyetheramine T 403, N,N-bis (3-aminopropyl)-ethylene diamine, 3-2(2-aminoethyl)aminopropyl amine, dipropyltriamine, 4,4′ diamino-dicyclohexylamine, glycidylethers, aziridines and combinations thereof and optionally an additive,
- wherein contact of the cross-linked organic coating with the solvent or the solvent and adhesion promoter combination results in swelling of the cross-linked organic coating.
A coated substrate comprising:
- a substrate;
- a cross-linked organic coating, which is one or more of a polyurethane, epoxy, polyester and/or acrylic coating adhered to the substrate and adhered to one or more of a further organic coating, adhesive, sealant, pressure sensitive decal and logo,
- wherein a surface of the cross-linked organic coating has been activated by application of an activation treatment prior to adhesion of the one or more of a further organic coating, adhesive, sealant, pressure sensitive decal and logo, the activation treatment consisting of:
- an organic solvent selected from ester based solvents, ketones, alcohols, ethers, amides, aromatics and halogenated solvents, and combinations thereof;
- an adhesion promoter selected from linear and branched polyethylene imines (PEI), amine and/or hydroxyl terminated polyether glycols, dendrimers, ethylene diamine, diethylene tetraamine, triethylene tetraamine (TETA), tetraethylene pentamine, pentaethylene hexamine, piperazine, aminoethylpiperazine, 1,4-bis(3-aminopropyl)piperazine, N,N′-bis(3-aminopropyl)ethylenediamine, 4,9-dioxa-1,12-dodecanediamine, 2,2′-(ethylenedioxy)bis(ethylamine), 4,7,10-trioxamidecane-1,13-diamine (TODA), 4,7-dioxadecane-1,10-diamine (DODA), polyetheramine T 403, N,N-bis (3-aminopropyl)-ethylene diamine, 3-2(2-aminoethyl)aminopropyl amine, dipropyltriamine, 4,4′ diamino-dicyclohexylamine, glycidylethers, aziridines and combinations thereof;
- and
- optionally an additive
- wherein contact of the cross-linked organic coating with the solvent or the solvent and adhesion promoter combination results in swelling of the cross-linked organic coating.
Dependencies are inferred from the claim text.