Patent US4598015A successfully refreshed from Google Patents.
US4598015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multilayer satin finish automotive paint system
Assignee: BASF Corp
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Filing: 1984-12-11
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Granted: 1986-07-01
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Expires: 2004-12-11
Abstract
Abstract A transparent topcoat coating composition is described comprising a thermoplastic or thermosetting resin material containing low pigment to binder ratio of titanium dioxide encapsulated mica particles. When used in a multicoat coating process as a transparent topcoat, an article is produced which not only produces satin finish color effects, but is stable to the elements as well.
Inventors
- 👤 Sol Panush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:41
CPC Classifications
B; B05; B05D; B05D5/00; B05D5/06; B05D5/065; B05D5/066; B05D7/00; B05D7/50; B05D7/52; B05D7/53; B05D7/532; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/251; Y10T428/256; Y10T428/257; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
106 words
A substrate material coated with at least two layers of polymer including a base coat comprising a pigmented thermosetting or thermoplastic resin and a transparent topcoat on the base coat, wherein the transparent topcoat consists essentially of a thermoplastic or thermosetting resin containing titanium dioxide encapsulated mica particles in a particle to resin weight ratio of about 0.0001 to about 0.32, the mica particles being about 5 microns to about 150 microns nominal longitudinal dimension and having a thickness of about 0.25 micron to about 1 micron, the titanium dioxide encapsulation representing about 10% to about 85% by weight of the total weight of the particle.
Claim 2
Dependent Claim
106 words
A substrate material coated with at least two layers of polymer including a base coat comprising a pigmented thermosetting or thermoplastic resin and a transparent topcoat on the base coat, wherein the transparent topcoat consists essentially of a thermoplastic or thermosetting resin containing titanium dioxide encapsulated mica particles in a particle to resin weight ratio of about 0.0001 to about 0.32, the mica particles being about 5 microns to about 150 microns nominal longitudinal dimension and having a thickness of about 0.25 micron to about 1 micron, the titanium dioxide encapsulation representing about 10% to about 85% by weight of the total weight of the particle.
Claim 3
Dependent Claim
36 words
The article of claim 1 wherein the substrate is metal, and the titanium dioxide encapsulation layer is overcoated with a layer containing about 0.1% to about 3.5% chromium hydroxide based on total weight of the particle.
Claim 4
Dependent Claim
20 words
The article of claim 2 wherein the mica particles are about 5 microns to about 75 microns nominal longitudinal dimension.
Claim 5
Independent Claim
128 words
A method of coating a substrate with multiple layers of polymer comprising applying at least one layer of a base coat of pigmented thermosetting or thermoplastic resin to the substrate, applying at least one layer of a transparent thermosetting or thermoplastic topcoat on the base coat, and drying or curing the applied coatings, the transparent topcoat consisting essentially of a thermoplastic or thermosetting resin containing titanium dioxide encapsulated mica particles in a particle to resin weight ratio of about 0.0001 to about 0.32, the mica particles being about 5 microns to about 150 microns nominal longitudinal dimension and having a thickness of about 0.25 micron to about 1 micron, the iron oxide encapsulation representing about 10% to about 85% by weight of the total weight of the particle.
Claim 6
Independent Claim
128 words
A method of coating a substrate with multiple layers of polymer comprising applying at least one layer of a base coat of pigmented thermosetting or thermoplastic resin to the substrate, applying at least one layer of a transparent thermosetting or thermoplastic topcoat on the base coat, and drying or curing the applied coatings, the transparent topcoat consisting essentially of a thermoplastic or thermosetting resin containing titanium dioxide encapsulated mica particles in a particle to resin weight ratio of about 0.0001 to about 0.32, the mica particles being about 5 microns to about 150 microns nominal longitudinal dimension and having a thickness of about 0.25 micron to about 1 micron, the iron oxide encapsulation representing about 10% to about 85% by weight of the total weight of the particle.
Claim 7
Dependent Claim
37 words
The method of claim 4 wherein the substrate is metal and the titanium dioxide encapsulation layer is overcoated with a layer containing about 0.1% to about 3.5% chromium hydroxide based on the total weight of the particle.
Claim 8
Dependent Claim
20 words
The method of claim 5 wherein the micron particles are about 5 microns to about 75 microns nominal longitudinal dimension.
Claim 9
Dependent Claim
20 words
The method of claim 5 wherein the micron particles are about 5 microns to about 40 microns nominal longitudinal dimension.
References Cited (Backward Citations)
US4509988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-30 | 1989-12-30 | 1990-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-30 | 1993-12-30 | 1994-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-30 | 1997-12-30 | 1998-07-01 | $7700.00 | Window Closed / Lapsed |