Method for preparing multi-layered coated articles and the coated articles prepared by the method
First Claim
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1. A method of forming a multilayered coating on a substrate, comprising:
- (I) applying to the surface of a substrate an aqueous based film forming composition comprising color pigments and an aqueous polyurethane dispersion comprising an effective amount of the reaction product of;
(a) a substantially branched, isocyanate containing prepolymer; and
(b) a polyamine having primary and/or secondary amino groups;
(II) applying a clear film forming composition over the basecoat of step (I);
(III) allowing the clear composition of step (II) to at least partially dry or cure to form a transparent topcoat over said basecoat.
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Abstract
A method of forming a multilayered coating on a substrate involves the steps of:
(I) applying to the surface of a substrate an aqueous based film forming composition comprising color pigments and an aqueous polyurethane dispersion comprising the reaction product of:
(a) a substantially branched, isocyanate containing prepolymer; and
(b) a polyamine having primary and/or secondary amino groups;
(II) applying a clear film forming composition over the basecoat of step (I);
(III) allowing the clear composition of step (II) to at least partially dry or cure to form a transparent topcoat over said basecoat.
76 Citations
33 Claims
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1. A method of forming a multilayered coating on a substrate, comprising:
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(I) applying to the surface of a substrate an aqueous based film forming composition comprising color pigments and an aqueous polyurethane dispersion comprising an effective amount of the reaction product of; (a) a substantially branched, isocyanate containing prepolymer; and (b) a polyamine having primary and/or secondary amino groups; (II) applying a clear film forming composition over the basecoat of step (I); (III) allowing the clear composition of step (II) to at least partially dry or cure to form a transparent topcoat over said basecoat. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 31, 33)
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2. A method of forming a multilayered coating on a substrate, comprising:
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(I) applying to the surface of a substrate an aqueous based film forming composition comprising color pigments and an aqueous polyurethane dispersion comprising an effective amount of the reaction product of; (a) a substantially branched, isocyanate containing prepolymer; and (b) a polyamine having primary and/or secondary amino groups; (II) allowing the composition applied in step (I) to at least partially dry or cure to form a basecoat on the substrate surface; (III) applying a clear film forming composition over the basecoat of step (II); (IV) allowing the clear composition of step (III) to at least partially dry or cure to form a transparent topcoat over said basecoat.
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28. A method of forming a multilayered coating on a substrate comprising both metallic and elastomeric parts, comprising:
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(I) applying to the surface of a substrate an aqueous based film forming composition comprising color pigments and an aqueous polyurethane dispersion comprising an effective amount of the reaction product of; (a) a substantially branched, isocyanate containing prepolymer; and (b) a polyamine having primary and/or secondary amino groups; (II) applying to said basecoat of step (I) a clear film-forming composition of a two-package organic solvent based system comprising a polyurethane polyol and a polyisocyanate; (III) allowing the clear composition of step (II) to at least partially cure to form a transparent topcoat over the basecoat. - View Dependent Claims (29, 30, 32)
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Specification