Automotive paint compositions containing pearlescent pigments and dyes
First Claim
1. A pearlescent coating composition comprising thermoplastic or thermosetting resin containing about 1% to about 25% by weight of a pigment composition comprising about 5% to about 90% by weight of iron oxide encapsulated mica particles, wherein the improvement comprises the inclusion of about 0.5 weight percent to about 82.5 weight percent (of the pigment composition) in the coating of a metal organic complex dye selected from the group consisting of 1:
- 2 cobalt metal organic complex dyes and 1;
2 chrome metal organic complex dyes, the inclusion of such metal organic complex dyes resulting in a fade-free coating composition.
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Accused Products
Abstract
A transparent topcoat coating compositions is described comprising a thermosetting resin material containing a pigment composition and a soluble dye. The pigment composition contains about 40 weight percent to about 80 weight percent of iron oxide encapsulated mica particles. The composition also contains 0.5 weight percent to about 82.5 weight percent of a soluble 1:2 chrome or 1:2 cobalt metal organic complex dye. When used in a multi-coat coating process as a base coat overcoated with a transparent topcoat, an article is produced having improved pearlescent color effects, improved depth and clarity, and resistance to fade from ultraviolet light.
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Citations
10 Claims
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1. A pearlescent coating composition comprising thermoplastic or thermosetting resin containing about 1% to about 25% by weight of a pigment composition comprising about 5% to about 90% by weight of iron oxide encapsulated mica particles, wherein the improvement comprises the inclusion of about 0.5 weight percent to about 82.5 weight percent (of the pigment composition) in the coating of a metal organic complex dye selected from the group consisting of 1:
- 2 cobalt metal organic complex dyes and 1;
2 chrome metal organic complex dyes, the inclusion of such metal organic complex dyes resulting in a fade-free coating composition. - View Dependent Claims (2, 3, 4)
- 2 cobalt metal organic complex dyes and 1;
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5. A substrate material coated with at least two layers of polymer including a base coat comprising a pigmented thermosetting resin and a transparent topcoat on the base coat comprising a clear thermosetting or thermoplastic resin, the pigmented thermosetting resin comprising about 1% to about 25% by weight of a pigment composition comprising about 5% to about 90% by weight of iron oxide encapsulated mica particles, wherein the improvement comprises the inclusion of about 0.5 percent to about 82.5 percent by weight (of the pigment composition) of a metal organic complex dye selected from the group consisting of 1:
- 2 chrome or 1;
2 cobalt metal organic complex dye in the base coat resulting in a coating which is fade free. - View Dependent Claims (6, 7)
- 2 chrome or 1;
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8. A method of coating a substrate with multiple layers of polymer comprising applying at least one layer of a base coat of pigmented thermosetting resin to the substrate, applying at least one layer of a transparent thermosetting or thermoplastic topcoat on the base coat, and drying and curing the applied coatings, the pigmented thermosetting resin comprising about 1% to about 25% by weight of a pigment composition comprising about 5% to about 90% by weight of iron oxide encapsulated mica particles, wherein the improvement comprises the inclusion of about 0.5 weight percent to about 82.5 weight percent by weight (of the pigment composition) of a metal organic complex dye selected from the group consisting of 1:
- 2 chrome and 1;
2 cobalt metal organic complex dyes in the base coat resulting in a fade free coating. - View Dependent Claims (9, 10)
- 2 chrome and 1;
Specification