Coating processes – With post-treatment of coating or coating material – Heating or drying
Reexamination Certificate
2005-06-07
2005-06-07
Jackson, Monique R. (Department: 1773)
Coating processes
With post-treatment of coating or coating material
Heating or drying
C427S379000, C427S385500, C427S388100, C427S388200, C427S388400, C427S409000, C524S541000, C524S594000, C524S595000, C524S596000, C524S609000, C524S841000, C525S390000, C525S397000, C525S480000, C525S505000
Reexamination Certificate
active
06902766
ABSTRACT:
A two-part metal protection composition includes: an aqueous metal treatment conversion coating component that includes an admixture of an acid and a coating forming component; and an aqueous protective coating component that is applied over metal treated with the aqueous metal treatment conversion coating component and includes an admixture of a blister suppressing agent and an organic film forming protective component. The aqueous metal treatment conversion coating component may contain an accelerator, such as hydroxylamine. In a preferred embodiment, the blister suppressing agent is an organic oxidizing agent that includes one or more of nitroguanidine; aromatic nitrosulfonates, Naphthol Yellow S; and picric acid (trinitrophenol). A method for treating a metallic surface includes: (a) applying an aqueous metal treatment conversion coating component described above; and (b) applying an aqueous protective coating component, described above, to the surface that has at least been partially treated with the aqueous metal treatment conversion coating component. A method for bonding an elastomeric substrate surface to a metallic substrate surface includes: (a) applying an aqueous metal treatment conversion coating component, described above, to the surface; (b) applying an aqueous coating or primer composition, described above, to the surface that has at least been partially treated with the aqueous metal treatment conversion coating component; and (c) applying an adhesive overcoat to effect bonding of the metallic substrate to the elastomeric substrate.
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Dearth Miles B.
Jackson Monique R.
Lord Corporation
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